Astronomers have identified a colossal giant radio galaxy (GRG) stretching 3.3 million light-years across—32 times the size ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Astronomers have completed a stunning massive photomosaic of our closest celestial neighbor, the Andromeda galaxy, comprised ...

"Photographing Andromeda was a herculean task because the galaxy is a much bigger target on the sky than the galaxies Hubble ...

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

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

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

After a close look with a powerful radio telescope, astronomers are still puzzled by a pair of objects with strange ...

This NASA/ESA Hubble Space Telescope image reveals a tiny patch of sky in the constellation Hydra. The stars and galaxies ...

The mystery of Fast Radio Bursts (FRBs) is more diverse than previously known after rapid emissions unexpectedly come from an ...

"If our eyes were able to detect X-rays, the sky would be full of dots. And every single one of those dots would be an ...