This time-lapse image shows Comet ISON approaching and leaving during its slingshot around the sun on Nov. 28, 2013.
A study using data from Chandra and ground-based telescopes, combined with detailed theoretical models, shows that the supermassive black hole…
A young sunflower plant is being closely monitored by the Expedition 38 crew members onboard the Earth-orbiting International Space Station.
One of the Expedition 38 crew members aboard the International Space Station took this vertical photograph of parts of Texas…
Although crew members on the International Space Station view literally hundreds of scenes of the moon rising and setting over…
36 years after his historic Mercury flight, U.S. Sen. John Glenn returned to space on board the shuttle Discovery on…
One of the Expedition 37 crew members on Oct. 3 exposed this frame showing a Russian Soyuz vehicle docked to…
Comet Lovejoy is favorably located in the night sky for late-night observers.
Comet ISON is seen the lower right of this image from the ESA/NASA Solar and Heliospheric Observatory mission, captured at…
NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, works with Biolab hardware in the Columbus laboratory.
