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  1. Oct 28, 2023 · Seager believes we'd confirm the existence of alien life only with sample-return missions — collecting samples from another planet or moon and bringing them back to Earth for study, in-situ...

    • Patrick Pester
  2. Apr 15, 2024 · Over Zoom the participants discussed how researchers might find that elusive evidence of alien life in the universe and how to talk publicly about those hypothetical discoveries.

  3. Jan 18, 2021 · Elizabeth Kolbert on an eminent astrophysicist who argues that signs of intelligent extraterrestrial life have appeared in our skies. What’s the evidence for his extraordinary claim?

    • Life, Astro Life Or Lyfe
    • Bio-Agnostic
    • Lab Work
    • Aliens Discovered?

    Part of the difficulty in searching for life of any sort is that scientists don’t agree on how life started in the first place—or what life even is. One good attempt at a definition came in 2011 from geneticist Edward Trifonov, who collated more than 100 interpretations of the word “life” and distilled them into one overarching idea: it’s “self-rep...

    The first issue of the academic journal Astrobiology, more than two decades ago, featured an article by Kenneth Nealson and Pamela Conrad called “A Non-Earth-centric Approach to Life Detection.” But taking a non-Earth-centric approach isn’t easy for our brains, which formed in this environment. We are notoriously bad at picturing the unfamiliar. “I...

    LAB’s research is a combination of fieldwork, lab projects and computation. One project is a planned visit to Canada’s Kidd Creek Mine, which drops nearly 10,000 feet into the ground. Its open pit looks like a quarry reaching toward the seventh circle of hell. At those depths, around 2.7 billion years ago, an ocean floor brewed with volcanic activi...

    There is plenty of skepticism outside LAB as well. Some scientists question the need to search for unfamiliar life when we still haven’t done much searching for extraterrestrial life as we know it. “I think there’s still a lot we can explore before we go to life as we don’t know it,” says Martina Preiner of the Royal Netherlands Institute for Sea R...

    • 1976, The Viking Mars landers detect chemical signatures indicative of life. Tests performed on Martian soil samples by NASA’s Viking landers hinted at chemical evidence of life.
    • 1977, The unexplained extraterrestrial “Wow!” signal is detected by an Ohio State University radio telescope. In August 1977 an Ohio State University radio telescope detected an unusual pulse of radiation from somewhere near the constellation Sagittarius.
    • 1996, Martian “fossils” are discovered in meteorite ALH84001 from Antarctica. NASA scientists controversially announced in 1996 that they had found what appeared to be fossilised microbes in a potato-shaped lump of Martian rock.
    • 2001, More rigorous calculations connected to the 1960s “Drake equation” suggests that our galaxy may contain hundreds of thousands of life-bearing planets.
  4. Dec 24, 2020 · Extraterrestrial evidence: 10 incredible findings about aliens from 2020. News. By Adam Mann. published 24 December 2020. Here on the little space rock we call Earth, humans often wonder whether...

  5. Mar 12, 2024 · If we do find evidence of alien life, whether that's in our solar system, on an exoplanet, or from an intelligent civilisation, that evidence is unlikely to be a slam-dunk.

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