Voyage to the Stars
Stellar Mystery Solved
This Just In
The 'Star Trek' and 'Star Wars' universes are coming together on Pluto's big moon Charon.
Astronomers have announced the discovery of a truly monstrous structure consisting of a ring of galaxies around 5 billion light-years across -- and it defies cosmological theory.
A team of engineers has been at work for the past three years to develop a space cleanup satellite. The intent is to eliminate threatening, human-made orbital debris.
A new map of the Milky Way has revealed a surprising fact about the stars living in our galaxy -- nearly a third have moved far from their stellar birthplace.
On July 25, 2015, the near-Earth asteroid 1999 JD6 -- a 'contact binary -- made its closest pass of Earth in at least over a century.
The second full moon of July wowed skywatchers around the world - and even in space.
In new observations beamed back from Cassini, Saturn's icy moon Tethys has decided to show off its mysterious stripes.
There are many precious Apollo artifacts at the Smithsonian that need a little tender, loving care.
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