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Perseverance Rover Studies Rock That Could Help Answer Past Mars Life Question
Space.com
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28/05/2025
A rock sample collected by the Mars Perseverance rover could help answer the question of "whether Mars was home to microscopic life," according to NASA's Jet Propulsion Laboratory.
Credit: NASA/JPL-Caltech
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Tech
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00:00
Our first reaction on the team when we saw this rock was like, whoa, what is that?
00:05
What could have caused that?
00:08
Sample 25 is called Sapphire Canyon.
00:10
This is a core that was collected from the Cheyava Falls Rock in Nuretva Valis.
00:16
The Cheyava Falls Rock is really neat.
00:19
If you look at it, it's got all sorts of cool features.
00:21
It has these small black spots that we call poppy seeds and also these larger spots that
00:28
we call leopard spots.
00:30
This is the only place we've found on Mars so far where we have chemical evidence that
00:36
chemical reactions associated with life could have been happening, as well as organic molecules.
00:42
The Sherlock instrument detected an organic signature, so both of those together in the
00:46
same rock is really compelling because these similar types of features, when we find them
00:51
on Earth, oftentimes they're associated with biology, with microbes, and so those pieces
00:56
of evidence combined together, we believe justify calling it a potential biosignature.
01:02
I would describe the Sapphire Canyon sample as mysterious because we see these signatures
01:09
that tell us chemistry has happened, potentially involving organics, but what does that mean?
01:16
Could life have been involved or something that didn't involve life at all?
01:19
We're not going to know until we bring that sample back and do some more measurements.
01:26
or we also put into the
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