Our galaxy may reside in a billion-light-year-wide cosmic bubble that accelerates local expansion, potentially settling the ...

July 14 (UPI) -- The Axiom-4 space crew undocked from the International Space Station on Monday morning as it prepares to ...

Researchers may have found our galaxy's missing companions, further bolstering science's most widely accepted cosmological ...

Our Milky Way could have many more satellite galaxies than we've detected so far. They're just too faint to be seen.