Lincoln Near-Earth Asteroid Research List of comets discovered by the LINEAR project 166P/NEAT Messier 39 Messier 26 Messier 18 Messier 36 List of numbered comets 2060 Chiron C/2012 E2 (SWAN) Comet NEOWISE Evolution of the brain Biosignature Europa Clipper April–June 2021 in science 2021 in paleomammalogy 2021 in science 276P/Vorobjov