Extraterrestrial Life

A New Mantra: Follow the Methane — May Advance Search for Extraterrestrial Life

by Shannon Hall June 20, 2014

Want to stay on top of all the space news? Follow @universetoday on Twitter The search for life is largely limited to the search for water. We look for exoplanets at the correct distances from their stars for water to flow freely on their surfaces, and even scan radiofrequencies in the “water hole” between the […]

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Lone Signal: First Continous Message Beacon to Find and Say Hello to an Extraterrestrial Civilization

by Nancy Atkinson June 12, 2013

Although scientists have been listening for years to search for indications of other sentient life in the Universe, just a few efforts have been made by humans to purposefully send out messages to the cosmos. Called METI (Messaging to Extraterrestrial Intelligence) or Active SETI (Search for Extraterrestrial Intelligence), these messages have so far been just […]

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SETI: The Search Goes On

by Nancy Atkinson November 13, 2012

In this new video, SETI founder Frank Drake and astronomer Jill Tarter about why the search of the cosmos is important and needed. Visit SETI online to learn more about the search for signals of extraterrestrial life using radio telescopes on Earth and how you can help. Remove this ad Nancy Atkinson on Google+

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“Tidal Venuses” May Have Been Wrung Out To Dry

by Jason Major March 28, 2012

Earth-sized exoplanets within a distant star’s habitable zone could still be very much uninhabitable, depending on potential tidal stresses — either past or present — that could have “squeezed out” all the water, leaving behind a bone-dry ball of rock. Remove this ad Jason Major on Google+

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No Alien Visits or UFO Coverups, White House Says

by Nancy Atkinson November 5, 2011

The White House has responded to two petitions asking the US government to formally acknowledge that aliens have visited Earth and to disclose to any intentional withholding of government interactions with extraterrestrial beings. “The U.S. government has no evidence that any life exists outside our planet, or that an extraterrestrial presence has contacted or engaged […]

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