Known as Sgr A* – pronounced “Sagittarius A star” – the supermassive black hole is four million times the mass of the sun and is known to exhibit flares that can be observed in multiple wavelengths, ...

A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

The M87* black hole exhibits chaotic gas flow and plasma ring dynamics, offering new insights into black hole physics.

Thirty years after the discovery of the first exoplanet, astronomers have detected more than 7,000 of them in our galaxy. But there are still billions more to be discovered. At the same time, ...

The Hubble Space Telescope has captured imagery of spiral galaxy UGC 2890. The "galaxy lies around 30 million light-years ...

"Our measurements imply that the supermassive black hole mass is 10% of the stellar mass in the galaxies we studied." ...

With even typically warm-weather states like Florida, Texas, and South Carolina covered in a blanket of snow and ice, a lot ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

New U.S. Postal Service stamps released last week feature images captured by NASA's James Webb Space Telescope.

A Distant Supernova Discovery This latest image from the Hubble Space Telescope features a distant galaxy located about 600 ...

The U.S. Postal Service launched two new Priority Mail and Priority Mail Express stamps today at the Big Sky, Montana, Post ...

The U.S. Postal Service has issued a new set of stamps celebrating the James Webb Space Telescope, the most powerful space ...