Astronomers have made a surprising discovery that challenges current theories of galaxy formation. A colossal disk-shaped galaxy, nicknamed the "Big Wheel," has been found just two billion years after ...

An accidental discovery by a team of astronomers has upended existing theories about how galaxies formed in the early ...

This NASA/ESA Hubble Space Telescope image features a sparkling spiral galaxy paired with a prominent star, both in the ...

Learn how ALMA gives astrophysics a front row seat to dynamic forces that shape the galaxy, called space tornadoes.