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 degrees, according to the space agency. Venus holds the crown of the hottest ...

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 ...