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 ...

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

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 ...