meteorites

impact crater, asteroids, meteors, meteorites, lunar craters, Lunar Reconnaissance Orbiter, NASA LRO, dinosaurs, extinction event, mass extinction, Mount Everest, Permian Triassic extinction event, Solar System, Moon, 'Oumuamua, kimberlite pipes, Yarkovsky effect, inner asteroid belt,

Long Ago, the Number of Meteors Hitting Earth Spiked Suddenly – and Didn’t Stop

dust, air pollution, Kordylewski clouds, natural satellites, Earth moons, space debris, house dust mites, asthma, PM10, PM2.5, Sahara desert, Bodele depression, meteor, meteorites, asteroids, comets, supernova, neutron star merger, black holes, Andromeda galaxy, Lagrange points, ISRO Aditya L1, Hiten satellite, cosmic dust, Brian Keating, cosmic microwave background, Big Bang, accretion disk, polycyclic aromatic hydrocarbons, panspermia, Jupiter, Saturn moons, Pan moon, origin of life, Arthur C. Clarke, moondust, regolith, Indian Space Research Organisation - ISRO,

The Story of Dust, Through Space and Time

According to the theory of panspermia, outer space seeded Earth with comet-borne primitive life forms over four billion years ago. Credit: Yuri_B/pixabay

Are We the Aliens We Seek?