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TagExoplanets and life

Somewhere in extreme deep space far galaxies and habitable exoplanets with rings. 3D rendered background. Elements of this image were furnished by NASA.

News From the Search for Extraterrestrial Life 2

A new ocean planet, a planet with carbon dioxide, and new information about life chances on Mars

What may be an ocean planet has been discovered in the region of the Constellation Draco: An international team of researchers led by Charles Cadieux, a Ph.D. student at the Université de Montréal and member of the Institute for Research on Exoplanets (iREx), has announced the discovery of TOI-1452 b, an exoplanet orbiting one of two small stars in a binary system located in the Draco constellation about 100 light-years from Earth. The exoplanet is slightly greater in size and mass than Earth and is located at a distance from its star where its temperature would be neither too hot nor too cold for liquid water to exist on its surface. The astronomers believe it could be an “ocean planet,” Read More ›

Agate surface background. Multicolor transparent crystal background. Macro

Exoplanets: Life Forms Made One Third of Earth’s Minerals

Researchers hope detection of such minerals on exoplanets can narrow the search for life

Recent work on how minerals form may help determine which planets are more likely to be habitable or inhabited. One-third of minerals — chemical solids whose atoms are highly ordered — are created directly or indirectly by life forms, says Carnegie geologist Robert Hazen: “One third of Earth’s minerals could not have formed without biology — shells and bones and teeth, or microbes, for example, or the vital indirect role of biology, such as by creating an oxygen-rich atmosphere that led to 2,000 minerals that wouldn’t have formed otherwise.” Carnegie Institution for Science, “Crushed, zapped, boiled, baked and more: Nature used 57 recipes to create Earth’s 10,500-plus ‘mineral kinds’” at ScienceDaily Both papers, here and here, require a fee or Read More ›