NASA's Perseverance Mars rover spotted a mysterious rock made of hundreds of tiny spheres that resemble spider eggs. Studying ...

NASA’s Curiosity Mars rover has detected the largest organic (carbon-containing) molecules ever found on the red planet. The ...

The Curiosity rover detected the largest organic molecules to date on Mars, which may be fragments of fatty acids, or some of the chemical building blocks of life.

The molecules may be remnants of fatty acids, which form cell membranes in Earth’s organisms, though they might have formed ...

NASA's Perseverance rover has encountered another rock on Mars that has left scientists puzzled.

While the presence of these molecules is not proof of ancient life on Mars, scientists say it shows we could detect chemical ...

For now that remains speculation, but while the presence of long-chain alkanes is not a smoking gun for life on Mars, they could be a big clue. However, Curiosity rover's SAM instruments are ...