Former US president Barack Obama sparked a media frenzy after suggesting on a podcast that aliens are real, though he quickly clarified that he had no evidence of extraterrestrial contact during his presidency. Obama said the statistical likelihood of alien life exists, but vast distances between solar systems make visitation improbable.
Meanwhile, NASA's Curiosity rover has detected long-chain molecules called alkenes in Martian mudflat from the Gale Crater. Scientists believe these could be chemical markers of ancient life, possibly derived from fatty acids in cellular membranes. The high concentrations make non-biological origins unlikely, according to researchers.
Additional studies suggest Mars once had rivers and lakes, with geological structures resembling Earth's river deltas. Analysis of Martian rocks with light dots points to kaolinite clay, which on Earth forms in wet tropical zones—environments conducive to life.
While definitive proof of past life on Mars may take decades, these findings offer compelling evidence. In contrast, conspiracy theories about aliens at Area 51 remain unsubstantiated; a 2019 attempt to storm the facility fizzled with only 150 participants.
Obama later stated, 'I saw no evidence during my presidency that extraterrestrials have made contact with us. Really!'
