NASA Planetary Scientist Noah Petro dishes on what it took plan the impressive touch-and-go return mission, why much of the ...
DW flew about 139,000 miles (224,000 km) away from Earth. The space rock was estimated to be about 43 feet wide (13 m). Credit: Space.com | animation: NASA/JPL-Caltech | edited by Steve Spaleta Music: ...
An asteroid hitting a neutron star could release enough energy to power humanity for 100 million years, more than enough to ...
NASA's new study on comet 67P suggests comets may have supplied water to Earth's oceans, challenging previous theories and ...