The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Gaia-4b is considered a super-Jupiter planet, a relatively cold gas giant, orbiting its star over 570 Earth-days. That star ...

Charon is the largest moon of the dwarf planet Pluto, but calling it a moon ... Christy had been imaging Pluto with the USNO's 1.5-meter (4.9-foot) telescope. Because Pluto is so far from the ...

Sep. 12, 2022 — Strange diamonds from an ancient dwarf planet in our solar system may have formed shortly after the dwarf planet collided with a large asteroid about 4.5 billion years ago ...

Explore the impact of stellar flares on the potential for alien life. Discover how higher levels of UV radiation can both ...