SETI
New Study Examines Cosmic Expansion, Leading to a New Drake Equation
In 1960, in preparation for the first SETI conference, Cornell astronomer Frank Drake formulated an equation to calculate the number…
New Study Examines How Extraterrestrial Civilizations Could Become “Stellarvores.”
One of the most challenging aspects of astrobiology and the Search for Extraterrestrial Intelligence (SETI) is anticipating what life and…
Remember that “Alien Signal” Sent by the ExoMars Orbiter Last Year? It’s Just Been Decoded
In May 2023, the ESA's Exomars Trace Gas Orbiter (TGO), currently in orbit around Mars, sent a signal to Earth…
Those Aren't Dyson Spheres, They're HotDOGs
Earlier this year, researchers claimed that they had found infrared signatures for candidate Dyson Sphere megastructures in archival WISE data.…
Advanced Civilizations Will Overheat Their Planets Within 1,000 Years
Earth's average global temperatures have been steadily increasing since the Industrial Revolution. According to the National Oceanic and Atmospheric Agency…
SETI Scientists Scan TRAPPIST-1 for Technosignatures
If there's an advanced civilization in the TRAPPIST-1 system living on multiple worlds, there's a way to eavesdrop on their…
Projecting what Earth will Look Like 1000 years from now Could Assist in the Search for Advanced Civilizations
The Search for Extraterrestrial Intelligence (SETI) is regularly plagued by the fact that humanity has a very limited perspective on…
Giant Low-Frequency Scan Searches for Aliens in 2,800 Galaxies
The search for extraterrestrial intelligence (SETI) has fascinated us for decades. Now a team of researchers have used the Murchison…
New Study Proposes how a Black Hole in Orbit Around a Planet Could be a Sign of an Advanced Civilization.
In 1971, English mathematical physicist and Nobel-prize winner Roger Penrose proposed how energy could be extracted from a rotating black…
The Wow! Signal Deciphered. It Was Hydrogen All Along.
In 1977, astronomers received a powerful, peculiar radio signal from the direction of the constellation Sagittarius. Its frequency was the…