Explore astronomy, from the latest trip to the International Space Station to alien planets outside our solar system.
The eclipse will last for nearly six hours, but won't be viewable from North America.
Phone will launch with a SpaceLab app to aid astronauts with experiments. Earth-bound iPhone users can download the app for 99 cents.
The CALIPSO satellite observes how clouds and particles affect Earth's climate.
The Dawn spacecraft launched in 1997 and is just now reaching Vesta, a small protoplanet in the asteroid belt between Mars and Jupiter.
Asteroid samples from a frozen lake showed variable types of amino acids and other chemicals that may have influenced the formation of life on Earth.
Its precise measurements should allow insights into global patterns of precipitation, evaporation and ocean circulation — key drivers of our planet's changing climate.
Skywatchers should look for a greenish-white arc or band of light.
New rover designed to look for signs that Mars is capable of, or was previously capable of, supporting life.
Supernovae were incredibly bright and had a different chemical make-up than previously seen supernovae.
See the first-ever photos of a NASA shuttle and the International Space Station linked together as seen from another spacecraft.
The potent blast from the Sun has unleashed a firestorm of radiation and will likely lead to moderate geomagnetic storm activity this week.
Cucumber experiment will build on previous research about plant growth in space.
Check out eight amazing photos of our solar system's tiniest planet, Mercury.
New stretch of gas is slightly outside the plane of the rest of the galaxy which explains why astronomers didn't see it before.
Four astronomers who discovered evidence for dark matter have won the Gruber Foundation Cosmology Prize for their numerical models.
Eco-entrepreneur on politics, energy and Earth's resources.
Russell blogs about the day's top science and eco-news.