Astronomers have just revealed the most promising places in the universe to search for extraterrestrial life, identifying almost 50 rocky worlds that are most likely to be habitab ...
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The first alien signal might be a dying civilization’s last burst
The most consequential signal humanity ever detects from another civilization may not arrive as a calm introduction. It may ...
New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder ...
The researchers who scan the skies for radio signals from extraterrestrials are now rethinking their approach.
Roughly 66 million years ago, scientists believe an enormous meteor, dubbed Chicxulub, smashed into the Earth in an extinction-level event that wiped out 75 percent of life, including the vast ...
The interstellar comet 3I/ATLAS was the third object ever discovered in our solar system that originated from another star system. Despite a viral conspiracy theory, NASA officials have repeatedly ...
If you've been following exoplanet research over the last couple of years, you've definitely heard of K2-18b. Located 124 light years away in the constellation Leo, it's attracted a lot of attention ...
Bring up aliens and a lot of people will scoff. But not everyone is laughing. Around the turn of the century, 3.8 million people banded together in a real-time search for aliens — with screensavers.
In last week’s The Universe column, I fielded a reader’s question about galaxy collisions in an expanding universe. The answer deals with vast distances, inscrutable forces and the ultimate fate of ...
The planet K2-18b, which drew intense speculation last year due to apparent signs of life, shows no signs of advanced civilisation after a comprehensive search for radio signals from it. In 2025, ...
I have been writing about the Giant Magellan Telescope for a long time. Nearly two decades ago, for example, I wrote that time was “running out” in the race to build the next great optical telescope ...
There’s no denying the allure of alien artifacts. Science fiction is awash in the material remnants of extraterrestrial civilizations, which surface in everything from the classic books of Arthur C.
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