A radio telescope in South Africa has unearthed a giant galaxy—dubbed a "cosmic megastructure"—with plasma jets that measure ...

Astronomers have discovered an extraordinary new giant radio galaxy with plasma jets 32 times the size of our Milky Way.

Learning about the night sky doesn’t have to be complicated. Read stargazing for beginners tips from astronomer Richard Darn.

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...