Natural methane on Mars
Videos
Natural methane on Mars refers to reports of detection of methane in Mars's atmosphere. The potential presence of methane in the atmosphere of Mars may indicate the presence of microbial life or geolo
Graphic summary of detections and non-detections of methane in Mars's atmosphere (ESA)
Chaotic Clouds of Jupiter
Life on Mars
Videos
The possibility of life on Mars is a subject of interest in astrobiology due to the planet's proximity and similarities to Earth. To date, no conclusive evidence of past or present life has been found
Mars canals illustrated by astronomer Percival Lowell, 1898
Alga crater is thought to have deposits of impact glass that may have preserved ancient biosignatures, if present during the impact.
Martian terrain
A series of artist's conceptions of past water coverage on Mars