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

High-energy cosmic rays, 10 million times more powerful than particles accelerated in Earth's strongest atom smasher, may ...

About 100 million light-years from Earth, a galaxy is losing everything that once defined it. NGC 1266 used to be a spiral, ...

From blooming tulip fields in the Netherlands to the glowing shell of the Bubble Nebula, last week’s PPOD images celebrated ...

A striking new image of the Whirlpool Galaxy is helping astronomers solve one of the biggest mysteries in star formation.

This NASA Hubble Space Telescope image reveals an enigmatic galaxy with a bright center and a face that hints at spiral ...

Hubble has revealed a giant planet-forming disk unlike anything astronomers have seen before. Nicknamed “Dracula’s Chivito,” ...

From this vantage point looking at the Milky Way from its edge, the galactic bulge might appear as a glowing orb of stars, ...

NASA's asteroid-bound spacecraft Psyche is headed for an encounter with Mars on Friday (May 15) to get a boost from the Red ...

NASA’s Psyche spacecraft is using a daring close flyby of Mars to slingshot toward one of the solar system’s strangest ...