Astronomers have discovered a flattened structure of matter around the Milky Way that explains the unusual motion of nearby galaxies.

The Small Magellanic Cloud (SMC) is one of the Milky Way's closest galactic neighbors—a small, gas-rich galaxy visible to the ...

New observations of L 98-59d, a member of the five-planet system L 98-59, suggest it harbors a vast global magma ocean that traps sulfur deep inside, forming a previously unrecognized class of ...

A telescope in Chile has revealed the swirling splendor of star-forming gases at the heart of our Milky Way galaxy ...

Discovered in the Pictor II dwarf galaxy, star PicII-503 has an extreme deficiency in iron—less than 1/40,000th of the sun. This signature makes it the clearest example of a star within a primordial ...

The Milky Way won’t last forever. Astronomers say it’s on a collision course with the Andromeda Galaxy, a slow-motion crash that will erase our galaxy’s identity. The universe already knows how it ...

Still in its original galaxy, a rare holdout from the second generation of stars sheds new light on the origins of the elements—and how massive supernovae reshaped the cosmos ...

A new study suggests the Sun moved outward with many similar stars during a large Milky Way migration event long ago.

For billions of years before reaching its current location, the Sun may have slowly travelled as part of a large group, or “wave,” of stars drifting out from the inner parts of the Milky Way. This ...

Scientists have uncovered evidence that our Sun may have traveled across the Milky Way as part of a massive migration of ...

Data from ESA's Gaia mission has been used to create an 3D animated view of the Milky Way galaxy's stellar nurseries. CREDIT European Space Agency (ESA) ACKNOWLEDGEMENTS Animation: ESA/Gaia/DPAC, S.

The Sun has been a powerful source of energy fueling the solar system for billions of years, but our host star may have had rough beginnings. A new study suggests the Sun migrated away from the center ...