Researchers Find Methane in Mars Atmosphere

Researchers from both NASA and the European Space Agency are reported to have independently found evidence of methane in the Martian atmosphere - on Earth, methane is a by-product of life. Methane gas would be destroyed by the Sun's radiation, so something would need to be replenishing it in the atmosphere. Neither agency has gone public with their findings yet; however, as they're working to confirm their results with other instruments.