David Clifford Jewitt is an American astronomer who studies the Solar System, especially its minor bodies. He is based at the University of California, Los Angeles, where he is a Member of the Institute for Geophysics and Planetary Physics, the Director of the Institute for Planets and Exoplanets, Professor of Astronomy in the Department of Physics and Astronomy and Professor of Astronomy in the Department of Earth, Planetary and Space Sciences. Read More
NASA's Hubble Space Telescope has seen a fragile comet, C/2019 Y4 (ATLAS), disintegrate into more than two dozen pieces."Their appearance changes substantially between the two days, so much so that it's quite difficult to connect the dots," said Davi ...
NASA's Hubble Space Telescope has given astronomers their best look yet at an interstellar visitor comet 2I/Borisov whose speed and trajectory indicate it has come from beyond our solar system. ...
