February 2023 visible planets including dazzling Jupiter and Venus in the west after sunset. Mars is high in the evening sky. Mercury is up before sunrise.
Exoplanets are worlds orbiting distant stars. Learn the history of our knowledge of exoplanets, the various types, how astronomers find them, and more.
The green comet - Comet 2022 E3 (ZTF) - will be closest to Earth on February 1 and 2. It's prime time to view this comet, which might be the brightest of 2023.
Enjoy these photos of Comet 2022 E3 (ZTF) as it approaches Earth, taken by members of the EarthSky community. The comet is closest to Earth on February 1 and 2.
The Lucy spacecraft has a new target! It will visit a main-belt asteroid at the end of 2023, two years ahead of schedule. Read more about its new target.