Stories by David Jewitt

David Jewitt is an astronomer at the University of California, Los Angeles, where he studies the primitive bodies of the solar system and beyond. Credit: Nick Higgins

Astronomy

Everything Scientists Know So Far about the First Interstellar Objects Ever Detected

Strange bodies from beyond the solar system have defied predictions

September 30, 2020 — David Jewitt and Amaya Moro-Martín

Space & Physics

Earth's Water May Have Come from Comets, Asteroids or Something Else Entirely

To discover the origin of the oceans, scientists are investigating our solar system’s farthest reaches and earliest moments

February 23, 2015 — David Jewitt and Edward D. Young