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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Like a shelf in an old house, the Earth collects a lot of dust from its surroundings. This "space dust" is mostly made up of micrometeorites that survive atmospheric entry and provides researchers with a cheap and easy way ...
Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets. Things mistaken for UFOs.
Astronomy
21 hours ago
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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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When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of biology because they are often produced by living microbes. However, scientists can be misled because ...
