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      • Indeed, no evidence for life beyond Earth has been adduced. However, the design of astrobiological experiments forces critical examination of the generality of assumptions derived from Earth life. There is an entire spectrum of possibilities for life on another planet. A planet may be lifeless and lack any vestiges of organic matter or fossils.
      www.britannica.com › science › extraterrestrial-life

      Extraterrestrial life | Definition, SETI, & Facts | Britannica

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  3. www.livescience.com › space › extraterrestrial-lifeNo, the James Webb Space Telescope probably didn't detect ...

    May 3, 2024 · No, the James Webb Space Telescope probably didn't detect signs of alien life — but it soon could. News. By Brandon Specktor. published 3 May 2024. The James Webb Space Telescope's possible...

  4. www.astronomy.com › science › possible-hints-of-lifePossible hints of life found on exoplanet K2-18b – how ...

    May 7, 2024 · Data from the James Webb Space Telescope (JWST) has shown that an exoplanet around a star in the constellation Leo has some of the chemical markers that, on Earth, are associated with living...

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  6. www.planetary.org › articles › meet-habitable-worldsMeet the Habitable Worlds Observatory, NASA’s life-seeking ...

    May 6, 2024 · A powerful new space telescope could help us answer the question of whether or not we are alone in the Universe. NASA’s Habitable Worlds Observatory, or HWO, is a “Super Hubble” telescope that would directly image Earth-size exoplanets circling other stars.

  7. en.wikipedia.org › wiki › Fermi_paradoxFermi paradox - Wikipedia

    3 days ago · The Fermi paradox is a conflict between the argument that scale and probability seem to favor intelligent life being common in the universe, and the total lack of evidence of intelligent life having ever arisen anywhere other than on Earth.

  8. spaceplace.nasa.gov › time-travel › enIs Time Travel Possible? | NASA Space Place – NASA Science ...

    May 6, 2024 · Science says yes! This image from the Hubble Space Telescope shows galaxies that are very far away as they existed a very long time ago. Credit: NASA, ESA and R. Thompson (Univ. Arizona) How do we know that time travel is possible? More than 100 years ago, a famous scientist named Albert Einstein came up with an idea about how time works.

  9. www.space.com › the-universe › marsPerseverance rover's Mars rock sample may contain best ...

    May 20, 2024 · Perseverance rover's Mars rock sample may contain best evidence of possible ancient life | Space. Here’s how it works. Mars. Perseverance rover's Mars rock sample may contain best evidence of...

  10. science.nasa.gov › missions › webbGalaxies Actively Forming in Early Universe Caught Feeding on ...

    5 days ago · NASA Webb Mission Team. May 23, 2024. Researchers analyzing data from NASA’s James Webb Space Telescope have pinpointed three galaxies that may be actively forming when the universe was only 400 to 600 million years old.

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