Using two infrared space telescopes and a 23-year gap, scientists may have spotted a mysterious, slow-moving object beyond ...

An international team of researchers has discovered a massive molecular cloud that, if we could see it in our sky, would ...

The discovery of Eos, the closest known molecular cloud to Earth and one of the largest structures in the night sky, hints at ...

A rare and dramatic scene unfolds 140 light-years from Earth. A rocky planet, once whole, is now crumbling to dust under the ...

PSR J0311+1402 flashes every 41 seconds — quite slow for a pulsar. It could help bridge the gap between fast- and ...

It’s rare these days for astronomers to find a new class of object in the heavens. After all, we’ve been searching the skies ...

All but one of Andromeda's satellite galaxies were found to be pointing right at us. According to our best models, that shouldn't be the case at all.

Astronomers have confirmed a wandering black hole, about seven times the mass of the Sun, 5,000 light-years from Earth.

Scientists have discovered a planet that is literally falling apart as it orbits its star. Located about 140 light-years from ...

The planet orbits its host star in just 30.5 hours, losing a mass of material roughly equal to Mount Everest each time ...

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding?

The trio is a rarity—and when all of its unusual traits are considered together, it is unique.