20/12/2022
Lori Glaze, the director of planetary science at Nasa, said the life question could only be addressed using the sophisticated techniques that were available on Earth.
"We can do a lot in situ with our remote-sensing instruments but we can't take all of our laboratory equipment and all of our human expertise to the surface of Mars. So we bring the samples back here, and then we can not only use all of our state of the art equipment but we'll have those samples for decades and we can come up with new ideas [to test the samples that] we haven't even dreamed of yet," she told BBC News.