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"Capturing another satellite like this in an Earth-observation image is extremely rare."

A new study finds that one quarter of heat waves between 2000 and 2023 would have been “virtually impossible” without global warming—and can be attributed to the emissions of individual energy producers

Though NGC 7456 looks like a modest spiral galaxy, new Hubble and XMM-Newton observations reveal a bustling system with star-forming regions and an active core.

The European Space Agency’s Plato spacecraft has safely arrived at ESTEC, ESA’s technical heart in the Netherlands. There, engineers will complete the spacecraft by connecting its solar panels and sunshield, and carry out a series of critical tests to confirm that Plato is fit for launch and ready for its planet-hunting mission in space.

"The idea was for our payload to get us just up to the potential biosignature designation and have the rest of the story told by instruments here on Earth."

A study in mice and on human blood uses a new protein to snag carbon monoxide before it latches onto blood cells

An archaeological dig in northern England shows iron and lead processing continued and even increased after the departure of the Romans

An archaeological dig in northern England shows iron and lead processing continued and even increased after the departure of the Romans

Our first attempt at shifting the orbit of an asteroid has provided crucial insight into how we could safely deflect a space rock that was hurtling towards Earth

Our first attempt at shifting the orbit of an asteroid has provided crucial insight into how we could safely deflect a space rock that was hurtling towards Earth

Liftoff is scheduled for 11:54 a.m. ET today (Sept. 11).

S&T editors attended star parties in the past months in various locations around the country to observe with fellow stargazers.

The post Attending This Year's Season of Star Parties appeared first on Sky & Telescope.

Magnificent spiral galaxy

4 Min Read NASA Uses Colorado Mountains for Simulated Artemis Moon Landing Course

NASA has certified a new lander flight training course using helicopters, marking a key milestone in crew training for Artemis missions to the Moon. Through Artemis, NASA will explore the lunar South Pole, paving the way for human exploration farther into the solar system, including Mars. 

The mountains in northern Colorado offer similar visual illusions and flight environments to the Moon. NASA partnered with the Colorado Army National Guard at the High-Altitude Army National Guard Aviation Training Site near Gypsum, Colorado, to develop the foundational flight training course.

“Artemis astronauts who will land on the Moon will need to master crew coordination and communication with one another,” said Paul Felker, acting deputy director of flight operations at NASA’s Johnson Space Center in Houston. “Much like they will on the Moon, astronaut teams are learning how to work together efficiently in a stressful environment to identify hazards, overcome degraded visual environments, and evaluate risks to successfully land.”

During the two-week certification run in late August, NASA astronauts Mark Vande Hei and Matthew Dominick participated in flight and landing training to help certify the course. The pair took turns flying a helicopter and navigating to landing zones. Artemis flight crew trainers, mission control leads, and lunar lander operational experts from NASA Johnson joined them on each helicopter flight to assess the instruction, training environment, and technical applications for crewed lunar missions.

NASA astronauts Matthew Dominick (left) and Mark Vande Hei (right) prepare to fly out to a landing zone in the Rocky Mountains as part of the certification run for the NASA Artemis course at the High-Altitude Army National Guard Aviation Training Site in Gypsum, Colorado, Aug. 26. NASA/Michael DeMocker A LUH-72 Lakota helicopter stirs up dust at the High-Altitude Army National Guard Aviation Training Site in Gypsum, Colorado, Aug. 28. NASA/Charles Beason A member of the Colorado Army National Guard peers out of a CH-47 Chinook in preparation for landing Aug. 22. NASA and trained instructors from the Army National Guard use a range of aircraft during flight training. Chinooks are used to demonstrate challenges with landing on the Moon. NASA/Charles Beason NASA astronauts Matthew Dominick (left) and Mark Vande Hei (right) celebrate after returning from a training flight Aug. 26 during a certification run for a lander flight training course for crewed Artemis missions. NASA/Michael DeMocker Paired with trained instructors with the Army National Guard, astronauts fly to mountaintops and valleys in a range of aircraft, including LUH-72 Lakotas, CH-47 Chinooks, and UH-60 Black Hawks. NASA/Charles Beason NASA astronaut Mark Vande Hei lands a helicopter as part of flight and landing training at the High Altitude Army National Guard Aviation Training Site Aug. 28. NASA/Michael DeMocker A member of the Colorado Army National Guard looks out of a CH-47 Chinook as it lands at a steep angle Aug. 29. A crater on the Moon could have a similar incline, posing landing challenges for future crewed Artemis missions. NASA/Michael DeMocker A LUH-72 Lakota helicopter flies over the mountains of northern Colorado Aug. 28 during a certification run for a lander flight training course for crewed Artemis missions. The mountains and valleys in Colorado have similar visual illusions to the Moon. NASA/Michael DeMocker The patch for the High-Altitude Army National Guard Aviation Training Site is pictured in the cupola of the International Space Station in 2023. NASA and the Colorado Army National Guard began working together in 2021 to develop a foundational lunar lander simulated flight training course for Artemis. NASA

The NASA astronauts and trained instructor pilots with the Army National Guard flew to progressively more challenging landing zones throughout the course, navigating the mountainous terrain, and working together to quickly and efficiently land the aircraft. 

Teams can train year-round using the course. Depending on the season, the snowy or dusty conditions can cause visual obstruction. Lunar dust can cause similar visual impairment during future crewed missions.

“Here in Colorado, we have specifically flown to dusty areas, so we know and understand just how important dust becomes during the final descent phase,” Vande Hei said. “Dust will interact with the lander thrusters on the Moon. During our flight training, we have had to revert to our instruments – just like we would on the Moon – because astronauts may lose all their visual cues when they’re near the surface.” 

During Artemis III, four astronauts inside the agency’s Orion spacecraft on top of the SLS (Space Launch System rocket) will launch to meet SpaceX’s Starship Human Landing System in lunar orbit. Orion will then dock with the Starship system and two astronauts will board the lander. Astronauts will use the Starship lander to safely transport themselves from lunar orbit to the lunar surface. Following surface operations, the two astronauts will use Starship to launch from the lunar surface, back to lunar orbit, and dock with Orion to safely journey back to Earth.

The NASA-focused course has been in development since 2021. Vande Hei and Dominick are the 24th and 25th NASA astronauts to participate in and evaluate the course based on functionality and Artemis mission needs. One ESA (European Space Agency) astronaut has also participated in the course.

“This course will likely be one of the first group flight training opportunities for the Artemis III crew,” said NASA astronaut Doug Wheelock, who helped to develop the foundational training course for the agency. “While the astronauts will also participate in ground and simulation training in Ohio and Texas, the real-world flight environment in Colorado at HAATS offers astronauts an amazing simulation of the problem solving and decision making needed to control and maneuver a lunar lander across an equally dynamic landscape.”

Though the course is now certified for Artemis, teams will continue to evaluate the training based on astronaut and technical feedback to ensure mission success and crew safety.

Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars for the benefit of all. 

For more information about Artemis visit: 

https://www.nasa.gov/artemis

Share

Details Last Updated Sep 11, 2025 EditorBeth RidgewayContactCorinne M. Beckingercorinne.m.beckinger@nasa.govLocationMarshall Space Flight Center Related Terms

• Human Landing System Program
• Artemis
• Artemis 3
• Humans in Space
• Marshall Space Flight Center

Explore More 9 min read Artemis II Crew Both Subjects and Scientists in NASA Deep Space Research Article 7 hours ago 5 min read NASA’s Northrop Grumman CRS-23 Infographics & Hardware Article 7 hours ago 3 min read NASA Launches 2026 Lunabotics Challenge Article 3 days ago Keep Exploring Discover More Topics From NASA

Artemis

Human Landing System

Artemis III

Humans In Space

4 Min Read NASA Uses Colorado Mountains for Simulated Artemis Moon Landing Course

NASA has certified a new lander flight training course using helicopters, marking a key milestone in crew training for Artemis missions to the Moon. Through Artemis, NASA will explore the lunar South Pole, paving the way for human exploration farther into the solar system, including Mars. 

The mountains in northern Colorado offer similar visual illusions and flight environments to the Moon. NASA partnered with the Colorado Army National Guard at the High-Altitude Army National Guard Aviation Training Site near Gypsum, Colorado, to develop the foundational flight training course.

“Artemis astronauts who will land on the Moon will need to master crew coordination and communication with one another,” said Paul Felker, acting deputy director of flight operations at NASA’s Johnson Space Center in Houston. “Much like they will on the Moon, astronaut teams are learning how to work together efficiently in a stressful environment to identify hazards, overcome degraded visual environments, and evaluate risks to successfully land.”

During the two-week certification run in late August, NASA astronauts Mark Vande Hei and Matthew Dominick participated in flight and landing training to help certify the course. The pair took turns flying a helicopter and navigating to landing zones. Artemis flight crew trainers, mission control leads, and lunar lander operational experts from NASA Johnson joined them on each helicopter flight to assess the instruction, training environment, and technical applications for crewed lunar missions.

NASA astronauts Matthew Dominick (left) and Mark Vande Hei (right) prepare to fly out to a landing zone in the Rocky Mountains as part of the certification run for the NASA Artemis course at the High-Altitude Army National Guard Aviation Training Site in Gypsum, Colorado, Aug. 26. NASA/Michael DeMocker A LUH-72 Lakota helicopter stirs up dust at the High-Altitude Army National Guard Aviation Training Site in Gypsum, Colorado, Aug. 28. NASA/Charles Beason A member of the Colorado Army National Guard peers out of a CH-47 Chinook in preparation for landing Aug. 22. NASA and trained instructors from the Army National Guard use a range of aircraft during flight training. Chinooks are used to demonstrate challenges with landing on the Moon. NASA/Charles Beason NASA astronauts Matthew Dominick (left) and Mark Vande Hei (right) celebrate after returning from a training flight Aug. 26 during a certification run for a lander flight training course for crewed Artemis missions. NASA/Michael DeMocker Paired with trained instructors with the Army National Guard, astronauts fly to mountaintops and valleys in a range of aircraft, including LUH-72 Lakotas, CH-47 Chinooks, and UH-60 Black Hawks. NASA/Charles Beason NASA astronaut Mark Vande Hei lands a helicopter as part of flight and landing training at the High Altitude Army National Guard Aviation Training Site Aug. 28. NASA/Michael DeMocker A member of the Colorado Army National Guard looks out of a CH-47 Chinook as it lands at a steep angle Aug. 29. A crater on the Moon could have a similar incline, posing landing challenges for future crewed Artemis missions. NASA/Michael DeMocker A LUH-72 Lakota helicopter flies over the mountains of northern Colorado Aug. 28 during a certification run for a lander flight training course for crewed Artemis missions. The mountains and valleys in Colorado have similar visual illusions to the Moon. NASA/Michael DeMocker The patch for the High-Altitude Army National Guard Aviation Training Site is pictured in the cupola of the International Space Station in 2023. NASA and the Colorado Army National Guard began working together in 2021 to develop a foundational lunar lander simulated flight training course for Artemis. NASA

The NASA astronauts and trained instructor pilots with the Army National Guard flew to progressively more challenging landing zones throughout the course, navigating the mountainous terrain, and working together to quickly and efficiently land the aircraft. 

Teams can train year-round using the course. Depending on the season, the snowy or dusty conditions can cause visual obstruction. Lunar dust can cause similar visual impairment during future crewed missions.

“Here in Colorado, we have specifically flown to dusty areas, so we know and understand just how important dust becomes during the final descent phase,” Vande Hei said. “Dust will interact with the lander thrusters on the Moon. During our flight training, we have had to revert to our instruments – just like we would on the Moon – because astronauts may lose all their visual cues when they’re near the surface.” 

During Artemis III, four astronauts inside the agency’s Orion spacecraft on top of the SLS (Space Launch System rocket) will launch to meet SpaceX’s Starship Human Landing System in lunar orbit. Orion will then dock with the Starship system and two astronauts will board the lander. Astronauts will use the Starship lander to safely transport themselves from lunar orbit to the lunar surface. Following surface operations, the two astronauts will use Starship to launch from the lunar surface, back to lunar orbit, and dock with Orion to safely journey back to Earth.

The NASA-focused course has been in development since 2021. Vande Hei and Dominick are the 24th and 25th NASA astronauts to participate in and evaluate the course based on functionality and Artemis mission needs. One ESA (European Space Agency) astronaut has also participated in the course.

“This course will likely be one of the first group flight training opportunities for the Artemis III crew,” said NASA astronaut Doug Wheelock, who helped to develop the foundational training course for the agency. “While the astronauts will also participate in ground and simulation training in Ohio and Texas, the real-world flight environment in Colorado at HAATS offers astronauts an amazing simulation of the problem solving and decision making needed to control and maneuver a lunar lander across an equally dynamic landscape.”

Though the course is now certified for Artemis, teams will continue to evaluate the training based on astronaut and technical feedback to ensure mission success and crew safety.

Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars for the benefit of all. 

For more information about Artemis visit: 

https://www.nasa.gov/artemis

Share

Details Last Updated Sep 11, 2025 EditorBeth RidgewayContactCorinne M. Beckingercorinne.m.beckinger@nasa.govLocationMarshall Space Flight Center Related Terms

• Human Landing System Program
• Artemis
• Artemis 3
• Humans in Space
• Marshall Space Flight Center

Explore More 9 min read Artemis II Crew Both Subjects and Scientists in NASA Deep Space Research Article 7 hours ago 5 min read NASA’s Northrop Grumman CRS-23 Infographics & Hardware Article 7 hours ago 3 min read NASA Launches 2026 Lunabotics Challenge Article 3 days ago Keep Exploring Discover More Topics From NASA

Artemis

Human Landing System

Artemis III

Humans In Space

SpaceX promises a step change in performance for cell phone users around the world.

Radio astronomy took another step forward recently, with the completion of Phase III of the Murchison Widefield Array (MWA) in Western Australia. We’ve reported before on how the MWA has investigated everything from SETI signals to the light from the earliest stars. WIth this upgrade, the MWA will continue to operate with much needed improvements while the radio astronomy awaits the completion of the successor it helped enable - the Square Kilometer Array (SKA).

Jupiter hosts the brightest and most spectacular auroras in the Solar System, and its largest moons (the Galileans) create their own auroral signatures known as “satellite footprints” in the planet’s atmosphere. Until now, astronomers had detected the auroral signatures of three Galileans (Io, Europa, and Ganymede), but not Callisto. Thanks to an international team, close-up images of Callisto's footprints have been seen at last.