A cosmic visitor is stirring up an earthly debate. A Harvard University astrophysicist has suggested the incoming ...

Avi Loeb, the chair of the astronomy department at Harvard, has suggested that 31/Atlas could be an alien probe on a “reconnaissance mission”.

Together, DART and Hera lay the foundations for future planetary protection missions. Focusing on asteroids that could pose harm to our planet, these missions require planning and execution at short ...

Massive interstellar object 3I/ATLAS, larger than Manhattan, shows unusual glow pattern and planetary alignment that Harvard physicist calls potentially technological.