Spelunking on Mars? I’m sure it could be fascinating, but it bears keeping in mind that environment doesn’t produce life.
This very extensive article provides some informative insights into possible bio-signatures that astronomers would hope to see from an exoplanet that might indicate the presence of life.
“A major goal for the Mars Curiosity rover missions is to look for signs of life,” Cardenas said. “It’s always been looking for water, for traces of habitable life. This is the biggest one yet. It’s a giant body of water, fed by sediments coming from the highlands, presumably carrying nutrients.”
“For Hart, the only explanation for the lack of evidence of alien civilizations is that there are none.”
What would the UFO team decide if they were fed the genetic code from human DNA, perhaps disguised in a format that didn’t reveal it as such?
Paul Scott Anderson writes: We know that life originated on Earth some 3.7 billion years ago. But we still don’t understand exactly how life came to be. Likewise, we know little to nothing about life on other rocky worlds, even those that might be similar to Earth. Is life a rare occurrence, or is it common? Or somewhere in Read More…
“The subsurface of Mars during the Noachian period was likely to have been habitable for microorganisms that feed on hydrogen and produce methane, according to new research.”
Frank Drake, the radio astronomer who pioneered the search for extraterrestrial intelligence (SETI), died yesterday (2 September) at the age of 92. Born on 28 May 1930 in Chicago, Drake was working at the Green Bank Radio Telescope during the early days of radio astronomy, in the late 1950s, when he was inspired by Giuseppe Read More…
One reason for hope for finding life elsewhere in the universe is that the universe appears to be fine-tuned for life. What the universe won’t do is tell us where the life is.
Researchers: “When we’re exploring Europa, we’re interested in the salinity and composition of the ocean, because that’s one of the things that will govern its potential habitability or even the type of life that might live there.”
If life is “a cosmic imperative that emerges on any mineral- and water-rich world,” say the researchers, then life emerged early on Earth along with minerals.
Rock samples collected from Mars by NASA’s Curiosity rover have revealed signs of key ingredients of life, according to a statement by the agency.
University of Cambridge researchers conclude, “The unusual behavior of sulphur in Venus’ atmosphere cannot be explained by an ‘aerial’ form of extra-terrestrial life, according to a new study.”
NASA is officially joining the hunt for UFOs. The space agency on Thursday announced a new study that will recruit leading scientists to examine unidentified aerial phenomena.
Biochemist Fuz Rana discusses a 2020 review article published in the journal Life in which a team of astrobiologists from MIT present a detailed evaluation of silicon’s life-support capacity.