The giant black hole is the oldest one found so far, and was likely formed more than 13 billion years ago, researchers say.

The final 'planet parade' of the year will feature six planets aligning in the pre-dawn sky on Sunday, August 10. A planetary ...

Ready for a show? A six-planet alignment begins Aug. 10. Here are which planets you can see and how to get the best view.

While Guinness World Records officially lists the Djoser Step pyramid in Egypt as the world’s oldest pyramid (around 2,630 BC), one paper published in October claimed a layer of the Gunung Padang ...

If the Sun pulls on the Earth with its massive gravitational force, why hasn’t Earth spiraled into it? After all, gravity ...