A massive black hole at the heart of a galaxy in the Virgo constellation is waking up, shooting out intense X-ray flares at regular intervals that have puzzled scientists, a study said Friday.

Don't miss out on the headlines from Breaking News. Followed categories will be added to My News. Astronomers previously had little reason to pay any attention to galaxy SDSS1335+0728, which is ...

For decades, the supermassive black hole anchoring a galaxy known as SDSS1335+0728 in the Virgo constellation hasn’t displayed much activity. But beginning in late 2019, astronomers noticed it ...

A massive black hole at the heart of a galaxy in the Virgo constellation is waking up, shooting out intense X-ray flares at regular intervals that have puzzled scientists, a study said Friday.

Astronomers previously had little reason to pay any attention to galaxy SDSS1335+0728, which is 300 million light years from Earth. But in 2019, the galaxy suddenly started shining with a ...