Extraterrestrial Intelligence

Our instruments to detect them are getting more sophisticated.

The method involves detecting alien messages while they're whizzing between planets.

Planetary geologist Erin Leonard of NASA talks about the Europa Clipper mission – and how to see if the icy moon of Jupiter has conditions required to support life.

The Fermi Paradox explores the haunting contradiction: if alien civilizations exist, why haven't we found them? NASA advisor Paul Sutter unpacks this cosmic mystery.

Nestled between mountains in a secluded corner of West Virginia, a giant awakens: the Green Bank Telescope begins its nightly vigil, scanning the cosmos for secrets.If intelligent life exists beyond Earth, there's a good chance the teams analyzing the data from the world's largest, fully steerable r...

Researchers used a powerful ground array for low-frequency radio observations to look for potential signs of life outside the Milky Way. Radio astronomer Chenoa Tremblay of the...

We just didn't have strong enough telescopes until now.

Astronomers have discovered that Saturn has thrown a newly found comet on its way out of the solar system. Comet A117uUD is expected to go interstellar at...

For now, our Solar System's eight planets are all safe, and relatively stable. Billions of years from now, everything will be different. The asteroids, Kuiper belt, and inner Oort cloud objects…

NPR's Mary Louise Kelly talks with astrobiologists Catherine Neish and Kevin Hand about missions to Saturn's moon Titan and Jupiter's moon Europa, to search for conditions that could support life.

You probably know from reading these that we like to start with your early years, where you were born, something about your family, if you have siblings, your

The fascinating patterns of 35 repeating fast radio bursts (FRBs) reveal new properties of these mysterious blasts of deep-space radiation that appear and...

Prepare to be astounded!

The Breakthrough Listen initiative has moved its headquarters to the U.K. to take advantage of the reams of data set to come from the Square Kilometer Array.

Researchers in the U.S. and Japan have developed a new AI technique that can determine if there is evidence for past or present life, or not, with 90% accuracy. The post New AI tool can help find alien life in the solar system first appeared on EarthSky.

Superintelligences might reveal themselves through the technosignatures of their cosmic engineering projects.

Avi Loeb's hunt for alien tech sounds like a conspiracy, but it's really an academic thought experiment—just one you should take with a grain of salt.

The European Southern Observatory's Extremely Large Telescope (ESO's ELT) is a revolutionary ground-based telescope that will have a 39-metre main mirror and will be the largest telescope in the world for visible and infrared light: the world's biggest eye on the sky. Construction of this technically complex project is advancing at a good pace, with the ELT now surpassing the 50% complete milestone.

When looking for life in space, we should broaden our horizons