Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

Such a dramatic cut to a flagship space telescope still in its prime will be felt across the mission's entire operations, ...

Fluffy strands of cosmic gas and dust illuminated by bright young stars form a beautiful cloudscape in a neighboring nebula.

Callisto, the third largest moon in the entire solar system, orbits Jupiter from about 1.2 million miles away. The rocky ...

NASA's New Horizons Pluto probe is gearing up to cross the "termination shock," an exotic boundary in the outer solar system, ...

A technique called sonification allows new discoveries, brings out subtleties in dense data, and makes astronomy more accessible.

And panic is exactly the word that came to mind as I watched the Spurs struggle to stay even in another close game against a ...

Beauty Of Tarantula Nebula This nebula in the Large Magellanic Cloud is one of the most active star-forming regions, filled ...

This image of the galaxy cluster Abell 2744 is from the Frontier Fields project, using natural gravitational lenses and ...