Vegetarians need not worry yet—plants will be on Earth for a long time to come. But not forever. The sun will ultimately determine the long-term existence of life on Earth. Its total energy output, called luminosity, has ...
Could Earth have seeded Jupiter's moon Europa with bacterial life, where it could have taken hold in Europa's ocean and perhaps evolved into something more? That's the hypothesis of a new paper in the International Journal ...
Microorganisms from our planet could survive on celestial bodies where water is present, such as Mars. That is the conclusion of Ph.D. candidate Tommaso Zaccaria after experiments with simulated space conditions. Our immune ...
Astrobiology
Jun 21, 2026
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With the release of "Disclosure Day," Steven Spielberg's new film about aliens, a question as old as science fiction itself resurfaces: If aliens were to arrive on Earth, would they come to conquer us, to study us ... or ...
Astrobiology
Jun 21, 2026
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Researchers from Texas A&M AgriLife are sending hundreds of grape seeds to the International Space Station, where the seeds will spend approximately six months exposed to cosmic radiation before returning to Earth for planting ...
Space Exploration
Jun 18, 2026
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It's 2158, and you're chugging away on your Ph.D. in planetary volcanology from the University of Utopia Planitia on Mars. Graduate students still get paid a sub-living wage, so you've been stuck eating freeze-dried ramen ...
Astrobiology
Jun 17, 2026
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111
We're still in the definition phase of the Habitable Worlds Observatory (HWO), but it seems like every week a new research group comes out with a paper helping to shape what is becoming one of the most important space telescopes ...
Astronomy
Jun 17, 2026
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Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other solar systems, even if that was not their original intention. Five robotic explorers—Pioneer 10 and ...
Astronomy
Jun 16, 2026
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Our search for technosignatures—clear signs of advanced civilizations beyond Earth—takes many forms. Many are driven by the famous Drake equation, which attempts to estimate how many technological civilizations there are ...
Astrobiology
Jun 16, 2026
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A biocontainment facility designed to protect Earth from potentially hazardous biotic contaminants from space should be part of a planned NASA base on the moon, a policy paper maintains.
Space Exploration
Jun 19, 2026
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