Video: We asked a NASA scientist—do aliens exist?
Do aliens exist? Extraterrestrial life has never been discovered. However, that doesn't mean it doesn't exist.
Space Exploration
Sep 9, 2021
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News tagged with extraterrestrial life
Related topics:
nasa
Volcanic eruptions may have spurred first 'whiffs' of oxygen in Earth's atmosphere
A new analysis of 2.5-billion-year-old rocks from Australia finds that volcanic eruptions may have stimulated population surges of marine microorganisms, creating the first puffs of oxygen into the atmosphere. This would ...
Earth Sciences
Aug 26, 2021
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Could life exist in the atmosphere of a sub-Neptune planet?
Earth is perfectly suited for organic life. It stands to reason then that similar worlds orbiting distant stars might also be rich with life. But proving it will be a challenge. One of the better ways to discover extraterrestrial ...
Astrobiology
Jun 28, 2021
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15
Complex molecules could hold the secret to identifying alien life
A new system capable of identifying complex molecular signatures could aid in the search for alien life in the universe and could even lead to the creation of new forms of life in the laboratory, scientists say.
Astrobiology
May 24, 2021
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60 years later, is it time to update the Drake equation?
On November 1, 1961, a number of prominent scientists converged on the National Radio Astronomy Observatory in Green Bank, West Virginia, for a three-day conference. A year earlier, this facility had been the site of the ...
Space Exploration
May 17, 2021
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Scientists find molecular patterns that may help identify extraterrestrial life
Scientists have begun the search for extraterrestrial life in the solar system in earnest, but such life may be subtly or profoundly different from Earth life, and methods based on detecting particular molecules as biosignatures ...
Astrobiology
May 13, 2021
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330
Surer signs of life: A better class of tools for detecting signs of life on other planets and moons
When they reached Mars' surface in 1976, NASA's two Viking landers touched down with a gentle thud. At 7 feet tall, 10 feet long, and weighing around 1,300 pounds, these spacecraft—the first U.S. mission to successfully ...
Space Exploration
Dec 9, 2020
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Using game-theory to look for extraterrestrial intelligence
Astronomer Eamonn Kerins with the University of Manchester has developed an approach to looking for intelligent extraterrestrial beings on other planets that involves using game theory. He has written a paper describing his ...
Australian telescope finds no signs of alien technology in 10 million star systems
A radio telescope in outback Western Australia has completed the deepest and broadest search at low frequencies for alien technologies, scanning a patch of sky known to include at least 10 million stars.
Astronomy
Sep 8, 2020
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Did meteorite impacts help create life on Earth and beyond?
What if impact craters, long seen as harbingers of death, turned out to be the cradle of life?
Astrobiology
Sep 2, 2020
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