Harvard scientist Avi Loeb, who has made headlines for his theories about interstellar objects, says we are "probably not" ...

At just 25, Cecilia Payne-Gaposchkin applied quantum physics to a treasure trove of astronomical observations to show that stars are mostly hydrogen and helium.

After a court victory, Harvard researchers were told some grants were being restored. But the battle over whether the ...

Astrophysicist Avi Loeb, the former chairman of Harvard's Department of Astronomy and current head of Harvard's Galileo Project, which searches for ...