NASA Announces First Evidence of Life on Mars in Possible Biosignature

Published 09/11/25 at 5:45 a.m.
By Oregon Coast Beach Connection Staff

(Portland, Oregon) – Wednesday, scientists at NASA made a rather extraordinary announcement: they had discovered the possible biosignatures of life on Mars – the first real evidence. It's far from absolute proof, but the findings definitely point to the chemical remnants that could have been left behind by a microbial presence. (Photo NASA: the area with spots that could be leftover from small lifeforms)

And it has the science world abuzz.

Samples collected by the Perseverance Mars rover last year showed what NASA called a potential biosignature: “a substance or structure that might have a biological origin but requires more data or further study before a conclusion can be reached about the absence or presence of life,” the space agency said in a press release.

Perseverance had come across a rock formation they called the “White Angel” in the Jezero Crater while exploring the Red Planet. The rover had been chugging around what is known to have been a riverbed of flowing water billions of years ago. See more Astronomy News, Updates from Oregon Coast, Washington Coast.

There, they found a pattern of minerals that indicated chemical and physical reactions that usually take place after a microscopic organism had used surrounding materials as an energy source. NASA said these were likely organic carbon, sulfur, and phosphorus found in the rock.

No ancient pyramids or weird faces caused by shadows: just very old chemistry remnants. Yet the signs that pointed them that way could've been out of a sci-fi flick.

What they initially found were spots – what the team nicknamed leopard spots. These contained iron-rich minerals: vivianite (hydrated iron phosphate) and greigite (iron sulfide).

This selfie taken by Perseverance is made up of more than 60 images – and it just slightly resembles Oregon coast landmarks like Yachats or Shore Acres near Coos Bay.

“Vivianite is frequently found on Earth in sediments, peat bogs, and around decaying organic matter. Similarly, certain forms of microbial life on Earth can produce greigite,” NASA said.

This is a potential fingerprint for microbial life. While this is a reaction that can be produced without life forms, NASA said the evidence somewhat leans more towards life than not. It can happen when things get particularly hot – but something was different here.

What does the Oregon coast have in common with Mars? Dendritic lines.

“However, the rocks at Bright Angel do not show evidence that they experienced high temperatures or acidic conditions, and it is unknown whether the organic compounds present would’ve been capable of catalyzing the reaction at low temperatures,” the agency said.

Photo of Yachats, Oregon Coast Beach Connection.

All this comes back to what prominent scientists like Neil deGrasse Tyson and Carl Sagan have said for decades. It's quite a claim so it's going to need some heavy duty findings.

“Astrobiological claims, particularly those related to the potential discovery of past extraterrestrial life, require extraordinary evidence,” said Katie Stack Morgan, Perseverance’s project scientist at NASA’s Jet Propulsion Laboratory in Southern California.

NASA is definitely not pointing to amoebas that say “Take me to your leader” just yet.

Pacific City resembling the sands of Mars one summer.

The discovery did yield some interesting hope and raise some new questions. These compounds were picked up in rock much younger than they expected.

“The discovery was particularly surprising because it involves some of the youngest sedimentary rocks the mission has investigated,” NASA said. “An earlier hypothesis assumed signs of ancient life would be confined to older rock formations. This finding suggests that Mars could have been habitable for a longer period or later in the planet’s history than previously thought, and that older rocks also might hold signs of life that are simply harder to detect.”

It also hearkens back to some lifeforms discovered just off the Oregon coast, living at extreme temperatures right around underwater volcanic vents. That was proof you could find life in incredibly unexpected places, making the idea of life on Mars not as distant a possibility as before.

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