Have you ever wondered why all the planets in our solar system orbit the Sun in roughly the same flat plane? This fascinating phenomenon isn’t a coincidence but a direct result of how our solar ...

This explorer spacecraft is heading to a rare asteroid with a naked metal core. It could hold clues to how Earth began ...

In the cold, distant reaches of the Solar System, far beyond Pluto, astronomers have just identified what could be a new dwarf planet. It's called 2017 OF201, a rock that appears to be some 700 ...

NASA has released the first look at its Advanced Composite Solar Sail System (ACS3) in orbit. Although the agency describes the device as currently “slowly tumbling” around the planet at an ...