Behold, directly overhead, a certain strange star was suddenly seen...
Amazed, and as if astonished and stupefied, I stood still.

— Tycho Brahe

NASA Image of the Day

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The latest NASA "Image of the Day" image.
Updated: 18 hours 59 min ago

Liftoff of SpaceX Falcon 9 and Dragon From Launch Complex 39A

Sun, 02/19/2017 - 2:35pm
A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at NASA's Kennedy Space Center in Florida. This is the company's 10th commercial resupply services mission to the International Space Station. Liftoff was at 9:39 a.m. EST from the historic launch site now operated by SpaceX under a property agreement with NASA.
Categories: Astronomy, NASA

Falcon 9 Rocket With Dragon Spacecraft Vertical at Launch Complex 39A

Fri, 02/17/2017 - 10:38am
NASA provider SpaceX's Falcon 9 rocket and Dragon spacecraft are vertical at Launch Complex 39A at NASA’s Kennedy Space Center in Florida. Liftoff of SpaceX's tenth Commercial Resupply Services cargo mission to the International Space Station is scheduled for 10:01 a.m. EST on Saturday, Feb. 18, 2017.
Categories: Astronomy, NASA

Thomas Byrdsong, Aerospace Engineer at NASA Langley Research Center

Thu, 02/16/2017 - 10:11am
On March 2, 1963 Engineer Thomas Byrdsong checks the Apollo/Saturn 1B Ground-wind-loads model in the Transonic Dynamics Tunnel at Langley Research Center in Hampton, Virginia.
Categories: Astronomy, NASA

Glacial 'Aftershock' Spawns Antarctic Iceberg

Wed, 02/15/2017 - 10:52am
Pine Island Glacier has shed another block of ice into Antarctic waters. The loss was tiny compared to the icebergs that broke off in 2014 and 2015, but the event is further evidence of the ice shelf’s fragility.
Categories: Astronomy, NASA

Space Station Flight Over Venice

Tue, 02/14/2017 - 10:45am
Expedition 50 Flight Engineer Thomas Pesquet of the European Space Agency shared this photograph from the International Space Station on Feb. 14, 2017, writing, "Venice, city of gondoliers and the lovers they carry along the canals. Happy Valentine's Day!"
Categories: Astronomy, NASA

F for Fabulous

Mon, 02/13/2017 - 11:00am
When seen up close, the F ring of Saturn resolves into multiple dusty strands. This Cassini view shows three bright strands and a very faint fourth strand off to the right.
Categories: Astronomy, NASA

Hubble Sees Spiral in Andromeda

Fri, 02/10/2017 - 10:20am
The Andromeda constellation is one of the 88 modern constellations and should not be confused with our neighboring Andromeda Galaxy.
Categories: Astronomy, NASA

Jeanette A. Scissum, Scientist and Mathematician at NASA Marshall

Thu, 02/09/2017 - 8:27am
Jeanette Scissum joined NASA’s Marshall Space Flight Center in 1964 after earning bachelor's and master's degrees in mathematics from Alabama A&M University. Scissum published a NASA report in 1967, “Survey of Solar Cycle Prediction Models,” which put forward techniques for improved forecasting of the sunspot cycle.
Categories: Astronomy, NASA

Sunrise at Rogers Dry Lake

Wed, 02/08/2017 - 12:40pm
A sunrise photo of Edwards Air Force Base’s Rogers Dry Lake was taken after heavy rainfall in southern California. NASA’s Armstrong Flight Research Center is seen in the foreground.
Categories: Astronomy, NASA

Antarctica’s Changing Larsen Ice Shelf

Tue, 02/07/2017 - 10:22am
The Larsen Ice Shelf is situated along the northeastern coast of the Antarctic Peninsula, one of the fastest-warming places on the planet. In the past three decades, two large sections of the ice shelf (Larsen A and B) collapsed. A third section (Larsen C) seems like it may be on a similar trajectory, with a new iceberg poised to break away soon.
Categories: Astronomy, NASA

Potentially Hospitable Enceladus

Mon, 02/06/2017 - 10:26am
Seen from outside, Enceladus appears to be like most of its sibling moons: cold, icy and inhospitable.
Categories: Astronomy, NASA

Hubble Captures Brilliant Star Death in “Rotten Egg” Nebula

Fri, 02/03/2017 - 9:43am
The Calabash Nebula, pictured here is a spectacular example of the death of a low-mass star like the sun.
Categories: Astronomy, NASA

Looking Back: Dr. George Carruthers and Apollo 16 Far Ultraviolet Camera/Spectrograph

Thu, 02/02/2017 - 10:26am
Dr. George Carruthers, right, and William Conway, a project manager at the Naval Research Institute, examine the gold-plated ultraviolet camera/spectrograph, the first moon-based observatory that Carruthers developed for the Apollo 16 mission. Apollo 16 astronauts placed the observatory on the moon in April 1972.
Categories: Astronomy, NASA

Lake Powell and Grand Staircase-Escalante

Wed, 02/01/2017 - 10:55am
This panorama, photographed by an astronaut aboard the International Space Station, shows nearly the full length of Lake Powell, the reservoir on the Colorado River in southern Utah and northern Arizona. Note that the ISS was north of the lake at the time, so in this view south is at the top left of the image.
Categories: Astronomy, NASA

NASA Day of Remembrance

Tue, 01/31/2017 - 3:22pm
Martha Chaffee, widow of Roger Chaffee, Sheryl Chaffee, daughter, and Roger Purvenas, son of Sheryl Chaffee, left, along with acting NASA Administrator Robert Lightfoot, right, place wreaths at the graves of Apollo 1 crewmembers Virgil "Gus" Grissom and Roger Chaffee as part of NASA's Day of Remembrance, Tuesday, Jan. 31, 2017.
Categories: Astronomy, NASA

Coy Dione

Mon, 01/30/2017 - 11:01am
Dione's lit hemisphere faces away from Cassini's camera, yet the moon's darkened surface features are dimly illuminated in this image, due to Saturnshine.
Categories: Astronomy, NASA

Apollo 1 Crew Honored

Fri, 01/27/2017 - 10:58am
Astronauts, from the left, Gus Grissom, Ed White II and Roger Chaffee stand near Cape Kennedy's Launch Complex 34 during training for Apollo 1 in January 1967.
Categories: Astronomy, NASA

January 1986 - Voyager 2 Flyby of Miranda

Thu, 01/26/2017 - 12:34pm
Uranus' moon Miranda is shown in a computer-assembled mosaic of images obtained Jan. 24, 1986, by the Voyager 2 spacecraft. Miranda is the innermost and smallest of the five major Uranian satellites, just 480 kilometers (about 300 miles) in diameter. Nine images were combined to obtain this full-disc, south-polar view.
Categories: Astronomy, NASA

Juno’s Close Look at a Little Red Spot

Wed, 01/25/2017 - 3:39pm
The JunoCam imager on NASA’s Juno spacecraft snapped this shot of Jupiter’s northern latitudes.
Categories: Astronomy, NASA

NASA Simulates Orion Spacecraft Launch Conditions for Crew

Tue, 01/24/2017 - 9:52am
In a lab at NASA’s Johnson Space Center in Houston, engineers simulated conditions that astronauts in space suits would experience when the Orion spacecraft is vibrating during launch atop the agency’s powerful Space Launch System rocket on its way to deep space destinations.
Categories: Astronomy, NASA