Astronomers may be close to identifying a mysterious object in our solar system. New research points to a potential candidate ...

German astronomer Johannes Kepler made sketches of sunspots in 1607 ... the pioneering drawings are helping scientists solve a solar mystery. Even though everything in the solar system revolves ...

The mystery object discovered in the research collaboration involving Northwestern measures within what is called the "mass gap" – heavier than the heaviest known neutron star, but lighter than ...

Kepler's sun drawings are the oldest sunspot records with known dates. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. "Half-forgotten ...