Approximately 466 million years ago, Earth might have exhibited a spectacular ... Earth’s equator resembling the rings visible around Uranus, Neptune, Saturn, and Jupiter. With time, much ...

NASA's Voyager 2 was the first spacecraft to see Neptune in all its gaseous glory, during a 1989 flyby. No other spacecraft have visited the icy, blue planet. So it's been three decades since ...

Mercury has a rocky surface when, facing the sun, can reach highs of 800 degrees while overnight lows could reach minus 290 ...

Astronomers directly detected the light emitted by a sub-Neptune exoplanet -- a ... Feb. 8, 2023 — Scientists have discovered a new ring system around a dwarf planet on the edge of the Solar System.

Most striking in Webb's new image is the crisp view of the planet's rings -- some of which have not been detected since NASA's Voyager 2 became the first spacecraft to observe Neptune during its ...