A collection of rocks scattered on an ancient shoreline on Mars might indicate that the Red Planet was once far more Earth-like than scientists previously thought. The rocks, discovered by NASA's ...
Astronomers have been surveying the sky for years to catalog and track so-called Near-Earth Objects (NEOs), asteroids and comets that come near to or cross paths with our planet’s orbit.
Potentially hazardous asteroids pose a risk to Mars missions, but they can also yield insight into the history of the Red Planet and the early solar system, new research suggests. Mars may face ...