Ground-penetrating radar reveals eons of environmental changes, offers hope that soil samples hold traces of life. Ground-penetrating radar onboard NASA’s Mars Perseverance rover has confirmed that the Jezero crater, formed by an ancient meteor impact just north of the Martian equator, once har
The present day habitability of Mars is an area of research that has exploded hugely in the last decade, to the extent that it s often hard to keep track of everything that s going on. This is by way of background material for my other articles on habitability of Mars.