Astronomers spotted the largest flare ever released from a supermassive black hole as it snacked on a giant star.

An interstellar comet that originated outside our solar system just flew by the sun. Next, the object will fly by Earth in December.

Buildings at Goddard’s Maryland campus are being emptied and padlocked, sources say. NASA leadership has pushed back against ...

At its peak, 'Superman' was 30 times more luminous than any previously recorded black hole flare. The black hole involved is estimated to be 500 million times more massive than the Sun, while the ...

This work is further support for the international effort to keep pushing in the hunt for WIMPs, according to Chamkaur Ghag, a professor of physics and astronomy at University ... Sign up for CNN’s ...

(CNN) — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have ...

CNN’s Tom Foreman breaks down what we know about the interstellar comet that originated outside our solar system.