ESA’s decade-long Milky Way Gaia mapping mission still has tons of data to release over the next few years. Expect surprises.

Stars orbit the centers of galaxies. But beyond that, things get a little harder to visualize. Do galaxies — and, ...

Planets, asteroids and comets orbit more massive stars, and stars collect around supermassive black holes, forming galaxies. Large galaxies, like the Milky Way, attract smaller galaxies.

Hypervelocity stars (HVSs) were first theorized to exist in the late 1980s. In 2005, the first discoveries were confirmed.

The one in the middle of the Milky Way, called Sagittarius A(asterisk ... Scientists know stars can form near and even orbit these black hole behemoths, but they've never seen a pair of stars ...

If a star orbits a black hole, it will appear from a distance to be orbiting empty space. Gaia projects the star’s orbit on a ...

Chocolate fans are delighted after discontinued chocolate bars have been spotted in a number of stores for a cheap price - ...

The Milky Way has more than 150 known globular clusters; these objects are excellent tools for studying, for example, the history of the Universe, or the dark matter content of the galaxies they orbit ...

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, ...

“our view of the Milky Way will become even more accurate,” he said. The spacecraft is nearly out of fuel now; when its tank is fully expended, Gaia will be moved into a retirement orbit.

orbit close to red dwarf stars that are smaller and cooler than the sun, and which make up over 75% of the 200 billion stars in the Milky Way. Published today in the journal Proceedings of the ...