A scientist has created the best-ever global color map of Neptune's big moon Triton, using images taken by a NASA spacecraft 25 years ago.
You may never set foot on Mars, but your words and pictures could land there later this year.
Some of the most dazzling views from the International Space Station happen when the sun goes down and the city light turn on. Continue reading →
Thanks to a massive effort by 30,716 volunteers, scientists have pinpointed what appear to be seven precious specks of dust from outside the solar system, each bearing unique stories of exploded stars, cold interstellar clouds and other past cosmic lives.
Two Mars-bound spacecraft are both in excellent health ahead of their September arrivals in orbit around the Red Planet, managers for both missions report.
A prototype inflatable braking system to land heavy payloads on Mars aced a debut test flight in June. Continue reading →
Two years ago this week, much of the world held its breath as a rocket-powered sky crane lowered NASA's huge Curiosity rover to the surface of Mars on cables.
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