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Perseverance’s giant ‘hand lens’ will scour Mars for signs of ancient life
An early version helped identify ancient life on Earth. Now its successor sits on the Red Planet.
Your ancestors might have been Martians
A controversial theory suggests that life could pre-date Earth.
The most life-friendly places on ancient Mars were deep below its surface
Subglacial lakes may have been the most hospitable place for life.
Traces of life on Venus now seem dubious
Three new studies failed to find similar levels of phosphine, the life-hinting molecule.
The moon is (slightly) wet, NASA confirms. Now what?
Planetary scientists and would-be explorers alike have a lot of follow up questions.
Local asteroid Bennu used to be filled with tiny rivers
Six new studies describe the rock’s soggy past and violent present.
Three ways scientists could search for life on Venus
The truth is out there. We just have to go get it.
Venus’s atmosphere shows potential signs of life
Researchers spotted phosphines in the planet’s hazy atmosphere.
There should be billions of Earths out there. Why can’t we find them?
A new estimate suggests the Milky Way is home to six billion Earth-like planets. So far, we’ve found just one potential candidate.
If life exists on Titan, it’s even weirder than we thought
Any microbes may have to forego membranes, or live underground.
