Astronomers using the Green Bank Telescope spotted surprisingly cold, dense hydrogen clouds embedded inside the Milky Way’s ...

A collision between the Milky Way and neighboring galaxy Andromeda is far from a sure thing; in fact, it could hinge on the flip of a cosmic coin.

ESA. The Milky Way is still experiencing the effects of this vast, ancient stellar near miss, a story remembered in the current velocities and paths of the stars impacted.

Three simulations showing Milky Way and Andromeda bypass at 1 million light year separation. ... CREDIT: NASA/ESA. On that earlier timescale, the sun will have already burnt itself out.

NASA has announced an exciting discovery hurtling through our solar system: an interstellar object. It’s a comet, but beyond ...

The stars of our Milky Way are giving up their secrets to the European Space Agency's Gaia spacecraft and its stunning new star catalog. ESA's new Gaia galaxy map shines with 1.7 billion stars ...

ESA has published a colossal data release from the agency’s Gaia observatory, which is currently engaged in a mission to survey 1 billion stars orbiting in the Milky Way. The data has already ...

The European Space Agency (ESA) said it is monitoring an unidentified object alongside Russia identified only as A11pl3Z as ...

Annotated version of the all-sky view of stars in the Milky Way, based on the first year of observations from ESA’s Gaia satellite, from July 2014 to September 2015.

The European Space Agency's Gaia mission has released an unprecedented map showing "high-precision measurements" of about 1.7 previously undiscovered billion stars in the Milky Way Galaxy.