In the quest for life beyond Earth, a planet with oxygen in
its atmosphere is considered holy grail. But appearances can be
deceiving.
There's an asteroid out there with our name on it, and we've
got 866 years to figure out how to stop it.
A bright inner moon of Neptune that has been missing in action since 1989 has been spotted.
The moon is constantly changing through a cycle of phases;
what can you see during each phase and why are they important?
When it came time for NASA’s LADEE spacecraft to put itself
in orbit around the moon, the politics that put the U.S. government into
a partial shutdown took a back seat to the physics of spaceflight.
The activity of meteor showers can be hit-and-miss at the
best of times, but tonight's spectacle -- the Draconids -- is known to
be highly unpredictable.
There were fears that if NASA's New Horizons mission reached
Pluto too late, the dwarf planet's atmosphere would have frozen out. But
fear not! It appears the little world's air is actually getting
thicker.
Six astronauts have emerged from an Italian cave after nearly a week underground.
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