Since Earth has survived for over 4.5 billion years, why should we consider any need to protect Earth now—assuming we can? She has survived cosmic forces, meteor impacts, volcanic eruptions, ice ages, ...

Mars Sample Return campaign makes use of an armada of hardware to collect Martian soil, rock, and atmospheric specimens for return to Earth. Image credit: NASA/JPL-Caltech. Now underway is a ...

In the clean room of the Spacecraft Assembly Facility at NASA’s Jet Propulsion Laboratory, scientists wear suits and masks while working on the Mars 2020 rover to avoid contamination. Credit: NASA/JPL ...

For millennia humans have been inspired by the stars but this may soon be a thing of the past due to a significant increase in the numbers of satellites, potentially limiting our view of the night sky ...

Earth faces a growing 'ring of trash' as defunct satellites burn up, releasing harmful particles like aluminium oxide that ...

A review of archives suggests that efforts to protect Earth from contamination by any organism brought back from the lunar surface were mostly for show. By Sarah Scoles When the astronauts of Apollo ...

Protecting Earth from any huge asteroid that might come our way is complicated. If you break the space rock into pieces, that could create a hellish rain of shrapnel. However, smashing something into ...