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Vaccines for Bundibugyo Ebola virus outbreak are being developed, but none are ready yet
A decade after Ebola vaccines changed outbreak response, a new epidemic in central Africa is caused by a strain the world never fully prepared for
Inflight call with ESA astronaut Sophie Adenot
On 20 May, ESA astronaut Sophie Adenot conducted an in-flight call with selected media representatives live aboard the International Space Station. During the discussion, Sophie shared insights into life and research in orbit, including scientific experiments supporting human health, climate science and future space exploration.
Mergers, Mayhem, and the Milky Way
Galaxies grow through mergers and collisions, and astronomers want to know more about the mergers in the Milky Way's past. But mergers can stir up the stars in the resulting galaxy, making it difficult to determine exactly when an ancient merger occurred. A new study led by researchers at the Institute of Cosmos Sciences of the University of Barcelona (ICCUB) and the Institute of Space Studies of Catalonia (IEEC) may have overcome that challenge.
I Am Artemis: Tim Goddard
Listen to this audio excerpt from Tim Goddard, NASA open water lead:
0:00 / 0:00
Your browser does not support the audio element.At the end of their mission around the Moon, NASA’s Artemis II astronauts were recovered from their Orion spacecraft by a team of U.S. Navy divers and NASA personnel. This included Tim Goddard, NASA open water lead, who helped guide the complex open water recovery of both Orion and the crew members, once they safely splashed down in the Pacific Ocean off the coast of San Diego.
As the open water lead, Goddard is responsible for the design, certification, procurement, and training, for both the NASA and Navy team. He also oversees the hardware and operations that are needed to recover the crew and spacecraft from the open ocean and bring them to safety aboard an amphibious Navy ship after splashdown.
Tim Goddard, NASA open water lead, stands in the Neutral Buoyancy Laboratory (NBL) at NASA’s Johnson Space Center in Houston. Goddard conducts training in the NBL with NASA and U.S. Navy recovery teams to prepare for Orion spacecraft recovery operations. NASA/Rad Sinyak
“This is a very complex set of operations,” said Goddard. “We have six small boats in the water. We’re relying on four separate helicopters and the host Navy ship at the same time. We have over 50 folks in the water and in different boats. I have team members underwater, on the surface, and small boats moving all around.”
And that’s just Goddard’s portion of the recovery — the larger operation entails coordination of activities that includes the Navy ship’s operations, communications, vessel traffic, medical needs, aviation operations, and more.
It’s a large orchestration of personnel and hardware to just enable recovery of the astronauts from the capsule — and then, we have to recover the spacecraft in the well deck of the Navy ship, which can be up to nine hours later.Tim Goddard
NASA Open Water Lead
Goddard and his team practice, practice, practice long before recovery day to ensure the complicated dance goes smoothly. They start by performing training runs with representative Orion hardware at the Neutral Buoyancy Laboratory at NASA’s Johnson Space Center in Houston, one of the world’s largest indoor pools that can support large-scale underwater and topside operations. The team then pushes out to San Diego, starting with bay operations and working their way up to open ocean conditions similar to what they’ll see on recovery day.
“By the time they do the real mission, they have hours and hours on each type of facet or each phase of that recovery,” said Goddard. “We bring them out and then we just go through repetition after repetition. When we do the real thing, it’s not their first time seeing it.”
NASA and U.S. Navy recovery teams, including NASA Open Water Lead Tim Goddard, prepare to transfer the crew to the USS John P. Murtha following the splashdown of the Orion spacecraft on April 10, 2026, marking the conclusion of the nearly 10‑day Artemis II mission around the Moon.NASA/Joel Kowsky
It’s actually Goddard’s third time recovering Orion — the team recovered the capsule on Orion’s first flight, Exploration Flight Test-1 in 2014, and Artemis I, Orion’s first uncrewed test flight around the Moon in 2022.
“We were strictly focused on capsule recovery for both of those flights,” said Goddard. “Now we introduced humans to the loop with a flight crew being in the capsule. Our primary focus has shifted from recovering the capsule to recovering the crew first. Once we get the crew safe and sound on the ship, we transfer our focus and shift our operations to the recovery of the capsule.”
Goddard joined the initial Orion recovery team in 2007, and has served as the open water lead for over 10 years. He joined NASA in the 1990s after a 27-year career as a Navy diver, initially serving in dive operations in the Neutral Buoyancy Lab and then pursuing mechanical engineering.
Over half of my time at NASA has been supporting this operation. That's a long time, and to finally have the Moon mission go off and bring the folks back — it's an immense pleasure. I am very excited and proud to be able to support this mission.Tim Goddard
NASA Open Water Lead
With crew aboard, there was an immense responsibility along with the pleasure of getting them home safely for Goddard.
“There was a lot of weight and stress that the other folks and I carried,” he said. “I can tell you under the previous two missions, once we set the capsule down, that was the moment of elation and ‘I can sleep now.’ That was tenfold when we recovered the crew. Once they were recovered and the capsule was back in San Diego, I had an immense feeling of relief.”
About the AuthorErika Peters Share Details Last Updated May 20, 2026 Related Terms Explore More 4 min read NASA Outlines Preliminary Artemis III Mission Plans Article 1 week ago 3 min read I Am Artemis: Kathleen Harmon Article 1 week ago 2 min read Nicholas Houghton: Engineering Crew Safety for NASA’s Artemis Missions Article 1 week ago Keep Exploring Discover More Topics From NASAMissions
Humans in Space
Climate Change
Solar System
I Am Artemis: Tim Goddard
Listen to this audio excerpt from Tim Goddard, NASA open water lead:
0:00 / 0:00
Your browser does not support the audio element.At the end of their mission around the Moon, NASA’s Artemis II astronauts were recovered from their Orion spacecraft by a team of U.S. Navy divers and NASA personnel. This included Tim Goddard, NASA open water lead, who helped guide the complex open water recovery of both Orion and the crew members, once they safely splashed down in the Pacific Ocean off the coast of San Diego.
As the open water lead, Goddard is responsible for the design, certification, procurement, and training, for both the NASA and Navy team. He also oversees the hardware and operations that are needed to recover the crew and spacecraft from the open ocean and bring them to safety aboard an amphibious Navy ship after splashdown.
Tim Goddard, NASA open water lead, stands in the Neutral Buoyancy Laboratory (NBL) at NASA’s Johnson Space Center in Houston. Goddard conducts training in the NBL with NASA and U.S. Navy recovery teams to prepare for Orion spacecraft recovery operations. NASA/Rad Sinyak“This is a very complex set of operations,” said Goddard. “We have six small boats in the water. We’re relying on four separate helicopters and the host Navy ship at the same time. We have over 50 folks in the water and in different boats. I have team members underwater, on the surface, and small boats moving all around.”
And that’s just Goddard’s portion of the recovery — the larger operation entails coordination of activities that includes the Navy ship’s operations, communications, vessel traffic, medical needs, aviation operations, and more.
It’s a large orchestration of personnel and hardware to just enable recovery of the astronauts from the capsule — and then, we have to recover the spacecraft in the well deck of the Navy ship, which can be up to nine hours later.Tim Goddard
NASA Open Water Lead
Goddard and his team practice, practice, practice long before recovery day to ensure the complicated dance goes smoothly. They start by performing training runs with representative Orion hardware at the Neutral Buoyancy Laboratory at NASA’s Johnson Space Center in Houston, one of the world’s largest indoor pools that can support large-scale underwater and topside operations. The team then pushes out to San Diego, starting with bay operations and working their way up to open ocean conditions similar to what they’ll see on recovery day.
“By the time they do the real mission, they have hours and hours on each type of facet or each phase of that recovery,” said Goddard. “We bring them out and then we just go through repetition after repetition. When we do the real thing, it’s not their first time seeing it.”
NASA and U.S. Navy recovery teams, including NASA Open Water Lead Tim Goddard, prepare to transfer the crew to the USS John P. Murtha following the splashdown of the Orion spacecraft on April 10, 2026, marking the conclusion of the nearly 10‑day Artemis II mission around the Moon.NASA/Joel KowskyIt’s actually Goddard’s third time recovering Orion — the team recovered the capsule on Orion’s first flight, Exploration Flight Test-1 in 2014, and Artemis I, Orion’s first uncrewed test flight around the Moon in 2022.
“We were strictly focused on capsule recovery for both of those flights,” said Goddard. “Now we introduced humans to the loop with a flight crew being in the capsule. Our primary focus has shifted from recovering the capsule to recovering the crew first. Once we get the crew safe and sound on the ship, we transfer our focus and shift our operations to the recovery of the capsule.”
Goddard joined the initial Orion recovery team in 2007, and has served as the open water lead for over 10 years. He joined NASA in the 1990s after a 27-year career as a Navy diver, initially serving in dive operations in the Neutral Buoyancy Lab and then pursuing mechanical engineering.
Over half of my time at NASA has been supporting this operation. That's a long time, and to finally have the Moon mission go off and bring the folks back — it's an immense pleasure. I am very excited and proud to be able to support this mission.Tim Goddard
NASA Open Water Lead
With crew aboard, there was an immense responsibility along with the pleasure of getting them home safely for Goddard.
“There was a lot of weight and stress that the other folks and I carried,” he said. “I can tell you under the previous two missions, once we set the capsule down, that was the moment of elation and ‘I can sleep now.’ That was tenfold when we recovered the crew. Once they were recovered and the capsule was back in San Diego, I had an immense feeling of relief.”
About the AuthorErika Peters Share Details Last Updated May 20, 2026 Related Terms Explore More 4 min read NASA Outlines Preliminary Artemis III Mission Plans Article 1 week ago 3 min read I Am Artemis: Kathleen Harmon Article 1 week ago 2 min read Nicholas Houghton: Engineering Crew Safety for NASA’s Artemis Missions Article 1 week ago Keep Exploring Discover More Topics From NASAMissions
Humans in Space
Climate Change
Solar System
NASA’s Psyche captures gorgeous Mars crescent photo on way to asteroid
NASA’s Psyche snapped images as it flew by Mars last week. The spacecraft used the planet’s gravity to give itself a boost on its journey toward its target asteroid
Is Dust the Best Thing in the Universe? Part 1: The Apology Begins
Years of grievance against dust. It ruins lungs, suits, rovers, and Mars missions. The first installment of an apology, sort of, to the most annoying substance in the cosmos.
The Selfish Gene at 50: Why Dawkins’s evolution classic still holds up
The Selfish Gene at 50: Why Dawkins’s evolution classic still holds up
Intoxicating and astonishing: Why 'The Selfish Gene' almost never was
Intoxicating and astonishing: Why 'The Selfish Gene' almost never was
After news about Oliver Sacks's "lies", we revisit his best-loved book
After news about Oliver Sacks's "lies", we revisit his best-loved book
The Colorado Avalanche is dominating the NHL—Denver’s high elevation could be the reason
Denver’s hockey team is studded with stars, but training and playing the game some 5,000 feet above sea level may give their athletic performance a boost over that of their rivals
Greenlight for next two ESA Scout missions
The European Space Agency is expanding its growing fleet of Earth-observing science Scout missions with the selection of two new satellites: Hibidis and SOVA-S.
Chosen from four final competing concepts, these missions will tackle very different but equally pressing scientific questions – from biodiversity below forest canopies to the effects of atmospheric gravity waves high above Earth.
NASA’s Fermi Glimpses Power Source of Supercharged Supernovae
5 min read
NASA’s Fermi Glimpses Power Source of Supercharged SupernovaeAn international team studying data from NASA’s Fermi Gamma-ray Space Telescope concludes the mission detected a rare, unusually luminous supernova. The researchers say it likely received its power-up from a supermagnetized neutron star born in the stellar collapse that triggered the explosion.
Gamma rays detected by NASA’s Fermi Gamma-ray Space Telescope gave scientists a look under the hood of a rare supernova that produced much more light than normal.NASA’s Goddard Space Flight Center
Download high-resolution video and images from NASA’s Scientific Visualization Studio
The Fermi mission is part of NASA’s fleet of observatories monitoring the changing cosmos to help humanity better understand how the universe works.
“For nearly 20 years, astronomers have searched Fermi data for gamma-ray signals from thousands of supernovae, and while a few intriguing hints have been reported, none were definitive until now,” study lead Fabio Acero at the French National Centre for Scientific Research (CNRS) and the University of Paris-Saclay.
A paper describing the findings published Wednesday in the journal Astronomy & Astrophysics.
This composite image shows two views of SN 2017egm, in visible light (inset) and gamma rays (background). The optical image shows the supernova — the brightest object in the scene — and its host galaxy on July 1, 2017. The background map shows a wide area of the sky surrounding the supernova’s position. Brighter colors indicate greater statistical likelihood that gamma rays are associated with the explosion. The map includes gamma rays detected by Fermi’s Large Area Telescope from July 5, 2017, to Oct. 25, 2017, or from 43 to 155 days after the supernova was discovered. Background, NASA/DOE/Fermi LAT Collaboration and Acero et. al. 2026; inset, NOT+ALFSOC/Bose et al. 2020
Core-collapse supernovae occur when the energy-producing center of a star many times our Sun’s mass runs out of fuel, collapses under its own weight, and explodes. During the collapse, a city-sized neutron star or an even smaller black hole may form. A blast wave blows away the rest of the star, which rapidly expands as a hot, dense cloud of ionized gas.
In the last couple of decades, nearly 400 exceptional core-collapse supernovae have been identified. Each of these events, dubbed superluminous supernovae, produced 10 or more times the amount of visible light normally seen.
In 2024, a study led by Li Shang at Anhui University in Hefei, China, noted that Fermi’s Large Area Telescope may have seen gamma rays — the most energetic form of light — from a superluminous supernova that occurred years earlier.
Dubbed SN 2017egm, this supercharged outburst occurred in galaxy NGC 3191, located about 440 million light-years away in the constellation Ursa Major. Even at this distance, the explosion remains one of the closest of its type to us on Earth.
The superluminous supernova SN 2017egm was discovered by the European Space Agency’s Gaia mission on May 23, 2017. It exploded in a massive barred spiral galaxy known as NGC 3191, shown on the left before the eruption. The image at right, taken on July 1, 2017, shows the supernova outshining the entire galaxy. Left, SDSS and PS1; right, NOT+ALFSOC/Bose et al. 2020
“We searched for gamma rays from the six nearest superluminous supernovae seen during the first 16 years of Fermi’s mission,” said Guillem Martí-Devesa, a researcher previously at the University of Trieste in Italy and now a fellow at the Institute of Space Sciences in Barcelona, Spain. “Only SN 2017egm shows evidence for gamma rays, confirming earlier hints that some supernovae can be as luminous in gamma rays as they are in visible light. This opens up a new window for studying these fascinating events.”
Theorists have debated the possible energy sources that give these explosions their extra punch. High on the list has been the formation of a magnetar, a type of neutron star with the strongest magnetic fields known — up to 1,000 times the intensity of typical neutron stars. That’s 10 trillion times stronger than a refrigerator magnet.
The team undertook a deeper analysis of the supernova’s observed optical and gamma-ray features to compare how well different theoretical models reproduced them. A model developed by co-authors Indrek Vurm at the University of Tartu in Estonia and Brian Metzger at Columbia University in New York City traced how light and particles produced by a newborn magnetar would move outward and interact with the supernova’s expanding debris.
Scientists expect a newly formed magnetar to spin a few hundred times a second. This rapid rotation produces a strong outflow of electrons and positrons, their antimatter counterparts, that forms a vast cloud of energetic particles.
The Crab Nebula formed in a supernova explosion observed in 1054. At its heart lies an isolated neutron star, the crushed core of the original star. It spins about 30 times a second, sweeping a beam of radiation toward Earth with every rotation, lighthouse style, which classifies the neutron star as a pulsar. This rapid spin powers X-ray jets (elongated blue-white feature near center) and a high-speed outflow of electrons and other particles. The particles collect in a vast cloud-like structure called a pulsar wind nebula, which also forms around magnetars, the pulsar’s supermagnetized cousin. This emission gradually slows the neutron star’s spin. These images combine X-ray data from NASA’s Chandra X-ray Observatory (bluish white) and infrared data from NASA’s James Webb Space Telescope. X-ray, Chandra: NASA/CXC/SAO; Infrared, Webb: NASA/STScI; Image Processing: NASA/CXC/SAO/J. Major
Within this cloud — called a magnetar wind nebula — various interactions fuel the production and absorption of gamma rays. For example, an electron and a positron can annihilate into a pair of gamma-ray photons, or two gamma rays can collide and produce the particles. In these and other ways, gamma rays interact with the supernova debris. Unable to escape directly, they become reprocessed, downshifted into lower-energy visible light that provides the supernova with its extra boost in luminosity.
“About three months after the collapse, as the supernova debris expands and cools, the gamma rays can begin to leak out,” Acero said. “This magnetar model best reproduces the supernova’s luminosity and the arrival time of its gamma rays during the first months, but we see room for improvement at later times, when the visible light fades quite irregularly.”
Acero and his colleagues suggest that additional processes likely played contributing roles during SN 2017egm’s long fade-out. These include debris falling back onto the magnetar and interactions between the blast wave and matter ejected by the star in the centuries prior to its demise.
The X-ray glow associated with a source known as Swift J1834.9-0846, located near the center of the W41 supernova remnant, comes from the first magnetar wind nebula identified (outline). ESA/XMM-Newton and Younes et al. 2016
The team also examined how well a new ground-based gamma-ray facility, the Cerenkov Telescope Array Observatory, might detect events like SN 2017egm. With about 50 hours of observing time, they say, a similar supernova could be detected out to about 500 million light-years. Our understanding of phenomena like SN 2017egm will improve thanks to cooperation between such facilities and NASA’s fleet of space-based observatories that watch for rapid changes in the universe.
“The magnetar central engine mechanism discussed in this paper builds upon a lot of observational and theoretical advances in magnetars over the last 20 years,” said Judy Racusin, a deputy project scientist for the Fermi mission at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “Observing gamma rays from supernovae will give us a new way to explore their inner workings.”
By Francis Reddy
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Media Contact:
Claire Andreoli
301-286-1940
claire.andreoli@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
NASA’s Fermi Glimpses Power Source of Supercharged Supernovae
5 min read
NASA’s Fermi Glimpses Power Source of Supercharged SupernovaeAn international team studying data from NASA’s Fermi Gamma-ray Space Telescope concludes the mission detected a rare, unusually luminous supernova. The researchers say it likely received its power-up from a supermagnetized neutron star born in the stellar collapse that triggered the explosion.
Gamma rays detected by NASA’s Fermi Gamma-ray Space Telescope gave scientists a look under the hood of a rare supernova that produced much more light than normal.NASA’s Goddard Space Flight Center
Download high-resolution video and images from NASA’s Scientific Visualization Studio
The Fermi mission is part of NASA’s fleet of observatories monitoring the changing cosmos to help humanity better understand how the universe works.
“For nearly 20 years, astronomers have searched Fermi data for gamma-ray signals from thousands of supernovae, and while a few intriguing hints have been reported, none were definitive until now,” study lead Fabio Acero at the French National Centre for Scientific Research (CNRS) and the University of Paris-Saclay.
A paper describing the findings published Wednesday in the journal Astronomy & Astrophysics.
This composite image shows two views of SN 2017egm, in visible light (inset) and gamma rays (background). The optical image shows the supernova — the brightest object in the scene — and its host galaxy on July 1, 2017. The background map shows a wide area of the sky surrounding the supernova’s position. Brighter colors indicate greater statistical likelihood that gamma rays are associated with the explosion. The map includes gamma rays detected by Fermi’s Large Area Telescope from July 5, 2017, to Oct. 25, 2017, or from 43 to 155 days after the supernova was discovered. Background, NASA/DOE/Fermi LAT Collaboration and Acero et. al. 2026; inset, NOT+ALFSOC/Bose et al. 2020Core-collapse supernovae occur when the energy-producing center of a star many times our Sun’s mass runs out of fuel, collapses under its own weight, and explodes. During the collapse, a city-sized neutron star or an even smaller black hole may form. A blast wave blows away the rest of the star, which rapidly expands as a hot, dense cloud of ionized gas.
In the last couple of decades, nearly 400 exceptional core-collapse supernovae have been identified. Each of these events, dubbed superluminous supernovae, produced 10 or more times the amount of visible light normally seen.
In 2024, a study led by Li Shang at Anhui University in Hefei, China, noted that Fermi’s Large Area Telescope may have seen gamma rays — the most energetic form of light — from a superluminous supernova that occurred years earlier.
Dubbed SN 2017egm, this supercharged outburst occurred in galaxy NGC 3191, located about 440 million light-years away in the constellation Ursa Major. Even at this distance, the explosion remains one of the closest of its type to us on Earth.
The superluminous supernova SN 2017egm was discovered by the European Space Agency’s Gaia mission on May 23, 2017. It exploded in a massive barred spiral galaxy known as NGC 3191, shown on the left before the eruption. The image at right, taken on July 1, 2017, shows the supernova outshining the entire galaxy. Left, SDSS and PS1; right, NOT+ALFSOC/Bose et al. 2020“We searched for gamma rays from the six nearest superluminous supernovae seen during the first 16 years of Fermi’s mission,” said Guillem Martí-Devesa, a researcher previously at the University of Trieste in Italy and now a fellow at the Institute of Space Sciences in Barcelona, Spain. “Only SN 2017egm shows evidence for gamma rays, confirming earlier hints that some supernovae can be as luminous in gamma rays as they are in visible light. This opens up a new window for studying these fascinating events.”
Theorists have debated the possible energy sources that give these explosions their extra punch. High on the list has been the formation of a magnetar, a type of neutron star with the strongest magnetic fields known — up to 1,000 times the intensity of typical neutron stars. That’s 10 trillion times stronger than a refrigerator magnet.
The team undertook a deeper analysis of the supernova’s observed optical and gamma-ray features to compare how well different theoretical models reproduced them. A model developed by co-authors Indrek Vurm at the University of Tartu in Estonia and Brian Metzger at Columbia University in New York City traced how light and particles produced by a newborn magnetar would move outward and interact with the supernova’s expanding debris.
Scientists expect a newly formed magnetar to spin a few hundred times a second. This rapid rotation produces a strong outflow of electrons and positrons, their antimatter counterparts, that forms a vast cloud of energetic particles.
The Crab Nebula formed in a supernova explosion observed in 1054. At its heart lies an isolated neutron star, the crushed core of the original star. It spins about 30 times a second, sweeping a beam of radiation toward Earth with every rotation, lighthouse style, which classifies the neutron star as a pulsar. This rapid spin powers X-ray jets (elongated blue-white feature near center) and a high-speed outflow of electrons and other particles. The particles collect in a vast cloud-like structure called a pulsar wind nebula, which also forms around magnetars, the pulsar’s supermagnetized cousin. This emission gradually slows the neutron star’s spin. These images combine X-ray data from NASA’s Chandra X-ray Observatory (bluish white) and infrared data from NASA’s James Webb Space Telescope. X-ray, Chandra: NASA/CXC/SAO; Infrared, Webb: NASA/STScI; Image Processing: NASA/CXC/SAO/J. MajorWithin this cloud — called a magnetar wind nebula — various interactions fuel the production and absorption of gamma rays. For example, an electron and a positron can annihilate into a pair of gamma-ray photons, or two gamma rays can collide and produce the particles. In these and other ways, gamma rays interact with the supernova debris. Unable to escape directly, they become reprocessed, downshifted into lower-energy visible light that provides the supernova with its extra boost in luminosity.
“About three months after the collapse, as the supernova debris expands and cools, the gamma rays can begin to leak out,” Acero said. “This magnetar model best reproduces the supernova’s luminosity and the arrival time of its gamma rays during the first months, but we see room for improvement at later times, when the visible light fades quite irregularly.”
Acero and his colleagues suggest that additional processes likely played contributing roles during SN 2017egm’s long fade-out. These include debris falling back onto the magnetar and interactions between the blast wave and matter ejected by the star in the centuries prior to its demise.
The X-ray glow associated with a source known as Swift J1834.9-0846, located near the center of the W41 supernova remnant, comes from the first magnetar wind nebula identified (outline). ESA/XMM-Newton and Younes et al. 2016The team also examined how well a new ground-based gamma-ray facility, the Cerenkov Telescope Array Observatory, might detect events like SN 2017egm. With about 50 hours of observing time, they say, a similar supernova could be detected out to about 500 million light-years. Our understanding of phenomena like SN 2017egm will improve thanks to cooperation between such facilities and NASA’s fleet of space-based observatories that watch for rapid changes in the universe.
“The magnetar central engine mechanism discussed in this paper builds upon a lot of observational and theoretical advances in magnetars over the last 20 years,” said Judy Racusin, a deputy project scientist for the Fermi mission at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “Observing gamma rays from supernovae will give us a new way to explore their inner workings.”
By Francis Reddy
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Media Contact:
Claire Andreoli
301-286-1940
claire.andreoli@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Stonehenge and the Geometry of the Sky
For most of human history, the sky was not something we studied — it was something we lived with.
The post Stonehenge and the Geometry of the Sky appeared first on Sky & Telescope.
NASA’s plan for a nuclear reactor on the moon could change space exploration forever—if it works
Nuclear power could enable long-term lunar missions, but NASA’s timeline may be too ambitious
Did the last common ancestor of humans and apes walk like a gorilla? A new study offers a clue
Some extinct human ancestors and modern-day apes appear to share wrist traits that raise the question of whether our last common ancestor walked on its knuckles