Comets
Gerard Kuiper

Credit: NASA
Occupation: Astronomer & Planetary Scientist
Year born: 1905
Research Areas: Atmospheres and Moons
Edmond Halley

Credit: R Phillips
Occupation: Astronomer and Mathematician
Year born: 1656
Research Areas: Comets, Transits, Stars, Maths, Geophysics
Caroline Herschel

Credit: care of Royal Astronomical Society
Occupation: Astronomer
Year born: 1750
Research Areas: Comets, Nebulae, Star Clusters
Kuiper Belt & Oort Cloud

Credit: Jedimaster
The Kuiper Belt
Consequences of NEO Impact

Credit: NASA/Bern Oberbeck/Dr. Kevin Azhnle
NEO Impacts

Peninsula showing a subtle indication of the Chicxulub
impact crater.
Credit: NASA/JPL
Near Earth Objects
Comets

Credit: © 1997 Loke Kun Tan
Comets are large balls of rock, ice, dust and gases. They contain frozen leftovers from the early Solar System. Material that is about 4,600 million years old!