Hubble at 25
This Just In
A burp of methane on Mars would indicate that the planet might be more alive than previously thought. But where did it come from?
While Memorial Day honors veterans who have died in combat, there are also the men and women who have died serving their country in the name of space exploration.
Jupiter and our moon will perform a celestial dance tonight, clear skies willing.
An ongoing act of cosmic cannibalism may be responsible for the strange appearance and unprecedented behavior of a gigantic star nicknamed Nasty 1.
After a two-year upgrade, the Large Hadron Collider smashed particles at record-breaking energy levels.
Pluto is 1/6th the size of Earth, but it has 5 moons. Jupiter has 67. Why does the Earth have just 1 moon?
The feature film juxtaposes the end of NASA's space shuttle program in 2011 with the space age future Walt Disney envisioned when he opened Tomorrowland in 1955.
A rainbow-like halo surrounded the sun over Mexico City on Thursday, an optical phenomenon that triggered a social media frenzy.
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