The Mars Global Surveyor spacecraft has photographed layered structures
similar to sedimentary rocks that may have been formed by ancient lakes between
4.3 and 3.5 billion years ago. If any life existed on Mars at the time, these
rocks might contain fossil remains. Mike Malin and Kenneth Edgett of Malin Space
Science Systems in San Diego suspect that they formed as sediment settled out
from lakes inside early craters and chasms (Science, vol 290, p1927).
To continue reading, today with our introductory offers
Advertisement
More from New ÒÁÈ˾þÃ
Explore the latest news, articles and features
Popular articles
Trending New ÒÁÈ˾þà articles
1
Woman with Alzheimer's starts conversing again after taking psilocybin
2
Where, when and how to watch the 2026 solar eclipse
3
Faecal transplant makes the brains of old mice act young again
4
Our verdict on The Selfish Gene: An unpopular piece of popular science
5
The race to understand how and when Thwaites glacier will collapse
6
Europe’s heatwave is the hottest and most humid ever
7
I have a 100 per cent chance of getting cancer due to a rare gene
8
Read an extract from Slow Gods by Claire North
9
If you aren't terrified by this heatwave, you should be
10
How menopause radically changes the brain – and what happens after
