The famous comet Halley spawns both the May Eta Aquariid meteor shower and the October Orionid meteor shower. It'll return to the inner solar system in 2061.
NASA's Webb telescope looked at the sub-Neptune exoplanet K2-18 b. It found methane, carbon dioxide, a possible ocean, and even ... maybe ... a biosignature.
New experiments show that methane on Mars, in Gale crater, may seep out of the ground when hard crusts of perchlorate salt temporarily warm up and weaken.
Mercury reaches its greatest elongation - greatest distance from the sunrise - on May 9, 2024. Look east at dawn. It'll brighten for the next few weeks.