The unpiloted craft carries more than 6,000 pounds of food, fuel, and supplies for the International Space Station crew. Arrival now scheduled for Thursday morning.
Where heliophysics meets art. Video acquired April 24 and 25, 2015.
Deadline for submissions in the NameExoWorlds contest is June 15, 2015. Fifteen stars and 32 planets (47 objects total) in 20 solar systems available for naming.
Instead of pulling galaxies in our universe together, gravity seems to be driving them apart. How can gravity be repulsive, when our everyday experience shows it’s attractive? To explain it, we need dark energy.
Up next … the Eta Aquarid meteor shower, peaking on the morning of May 6.
Fly through the Hubble Space Telescope’s 25th anniversary image of star cluster Westerlund 2 in 3-D!
A new NASA collaboration will use a systems science approach – looking at the big picture, cutting across different scientific disciplines – to seek alien life.
Why are astronomers excited about the first directly obtained visible light spectrum – or rainbow array of visible colors – bounced from the surface of an exoplanet?
Dawn spacecraft has reacquired images of Spot 5, the mysterious bright double feature on the dwarf planet Ceres. The bright spots look … as strange as ever.
It came close. 2015 HD1 passed just 0.2 lunar distances away (45,600 miles or 73,400 km).
That glow over the unlit part of a crescent moon – called earthshine – is light reflected from Earth.
NASA has a whole slate of cool-looking activities in celebration of the 25th anniversary of the Hubble Space Telescope, starting on Monday, April 20!
You might see a lot or you might not see many, but if you stay in the house, you won’t see any.
After more than a month orbiting on Ceres’ dark side, Dawn has captured enough images to make this animation of the dwarf planet’s north pole.
The shortest lunar month of 2015 starts with the April 18 new moon and ends May 18. Learn about the varying lengths of the lunar months, here.
The intriguing cycle of closest and farthest moons. Plus, dates for 2015’s 13 perigees (closest points) and 13 apogees (farthest points).
Spectacular images from Rosetta spacecraft of Comet 67P/Churyumov-Gerasimenko between January 31 and March 25. Many different angles. Increasing activity!
New Horizons spacecraft is now only three months away from its historic sweep through the Pluto-Charon system in mid-July. First image in color!
After more than 10 years in space, the spacecraft will collide with Mercury, ending its mission, around late April. NASA telecon scheduled for April 16 at 1 p.m. EDT (17:00 UTC).
SpaceX Dragon capsule now on its way to International Space Station after Tuesday’s successful liftoff via Falcon 9 rocket. Rendezvous set for Friday morning.
A collection of 10 unexpected and intriguing facts about our solar system – our sun and its family of planets – you probably did not know!