We have long been fascinated with the idea of alien life. The earliest written record presenting the idea of "aliens" is seen in the satiric work of Assyrian writer Lucian of Samosata dated to 200 AD.
Space Exploration
Mar 3, 2023
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25
The red streaks crisscrossing the surface of Europa, one of Jupiter's moons, are striking. Scientists suspect it is a frozen mixture of water and salts, but its chemical signature is mysterious because it matches no known ...
Planetary Sciences
Feb 20, 2023
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126
Imagine that you live alone in a dark, hilly wood that stretches for miles in all directions. You know your own forest well, having hiked and surveyed it as far as your feet and your tools allow. In all these explorations, ...
Astronomy
Feb 15, 2023
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10
Some 540 million years ago, diverse life forms suddenly began to emerge from the muddy ocean floors of planet Earth. This period is known as the Cambrian Explosion, and these aquatic critters are our ancient ancestors.
Astronomy
Feb 4, 2023
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77
War, budget cuts, a pandemic and a crash: For all its trials, Europe's ExoMars mission might be more deserving of the name Perseverance than NASA's Martian rover.
Space Exploration
Feb 3, 2023
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77
In a recent paper submitted to The Astronomical Journal in November 2022, a scientist at the Swiss Federal Institute of Technology Lausanne quantifies how the Earth has not heard a radio signal from an extraterrestrial technological ...
Astronomy
Jan 30, 2023
5
58
Europe's JUICE spacecraft is all ready to embark on an eight-year odyssey through the Solar System to find out whether the oceans hidden under the surface of Jupiter's icy moons have the potential to host extraterrestrial ...
Space Exploration
Jan 24, 2023
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91
As space missions delve deeper into the outer solar system, the need for more compact, resource-conserving and accurate analytical tools has become increasingly critical—especially as the hunt for extraterrestrial life ...
Astrobiology
Jan 16, 2023
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317
A new Pentagon office set up to track reports of unidentified flying objects has received "several hundreds" of new reports, but no evidence so far of alien life, the agency's leadership told reporters Friday.
Other
Dec 16, 2022
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81
We've had a long-running series here at UT on potential solutions Fermi paradox—why aren't we able to detect any alien life out there in the Universe? But more possible solutions are being developed all the time. Now, another ...
Space Exploration
Dec 6, 2022
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