A solar wind event squashed the protective bubble around Uranus just before Voyager 2 flew by the planet in 1986, shifting ...

What If...? Season 3 will be repeating the one thing that made Season 2 of the show stand apart from other comics adaptation.

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

It depends on how close it came to any planets. Venus, which is roughly Earth-sized, sometimes gets to within 0.3 astronomical units (45,000,000 km) of Mercury and causes tiny but measurable ...

Astronomers have now listened in on the nearby TRAPPIST-1 system to check whether aliens are chattering between their own neighboring planets. Earth has been blasting out incidental radio signals ...

Although Seeing in the Dark doesn't directly discuss Pluto, it does celebrate the joy of observing planets. Viewers who watch the show may wonder what happened to Pluto in 2006 and whether any of ...

Things have been a mess since Pluto's demotion. In 2006, the International Astronomical Union (IAU) voted on the definition of a planet. Famously, Pluto no longer met the criteria and was demoted ...

Astronomers discovered the TRAPPIST-1 system, a family of tightly packed planets swarming a red dwarf star, about eight years ago. Credit: Mark Garlick / Science Photo Library / Getty Images ...