Hubble Space Telescope and MAVEN mission have been used to help unravel the mystery of Mars' escaping water. Credit: NASA ...

Inflation and budget issues are threatening to hobble NASA’s most in-demand telescopes.

Hubble Space Telescope imagery created an HD look at the gas giant planet Jupiter. Credit: NASA Goddard Space Flight Center ...

Is the Hubble constant—a key part of how we measure the expansion of our universe—in a crisis? Some cosmologists say yes.

Astronomers have added two more exoplanets to a growing study aimed at finding out whether rocky worlds near small, faint ...

This serene spiral galaxy hides a cataclysmic past. The galaxy IC 758, shown in this NASA/ESA Hubble Space Telescope image, ...

A team of astronomers have put together the largest, most detailed map of the universe ever created – and you can explore it ...

NGC 4449 is a dwarf galaxy turned stellar powerhouse, dazzling astronomers with its explosive star-forming activity and rich ...

Scientists using NASA's Hubble Space Telescope went looking for evidence of one phenomenon and found quite another.

NASA scientists found evidence of darkness on the 'leading side' of Uranus' moons, which they expected to be bright.

The most famous telescope in history has reached a major milestone -- it's 35 years old. The Hubble Space Telescope launched on a grand scientific adventure to study the cosmos on April 24 ...