Extraterrestrial

What is the Arecibo Message?

In 1974, the famous Arecibo Message was sent into space, humanity's first and only attempt at messaging extraterrestrial intelligence.

1 week ago

If Alien Probes are Already in the Solar System, Maybe we Could Detect Them Calling Home

According to a new study, alien probes may permeate the galaxy, and could be detected in the Solar System when…

2 months ago

Not Saying it was Aliens, but ‘Oumuamua Probably Wasn’t a Nitrogen Iceberg…

In a recent paper, Amir Siraj and Prof. Loeb show that the "nitrogen iceberg" theory cannot explain the mysterious nature…

2 months ago

NASA is Getting Serious About the Search for Life in the Universe

Frameworks are a valuable tool in science.  They give context to sometimes abstract concepts such as “how powerful can an…

3 months ago

If Aliens Are Out There, We’ll Meet Them in a Few Hundred Million Years

A new study indicates that aliens are probably out there, occupying half of the Universe, and we'll likely meet them…

4 months ago

We’ll Have to Wait About 3,000 Years for a Reply From Intelligent Civilizations

According to a new study by Harvard Professor Loeb and Amir Siraj, it would around 3000 years to hear a…

5 months ago

A New Plan to Search for Extraterrestrial Artifacts at Earth and Across the Solar System

Professor Avi Loeb has announced a new project that will search for 'Oumuamua-like objects in our Solar System, which could…

6 months ago

Oumuamua Isn’t an Alien Probe, Because Aliens can Learn Everything They Need About us With Telescopes

A new study offers a new take on why 'Oumuamua could not have been an alien probe: a lack of…

10 months ago

A Review of “Extraterrestrial” by Prof. Avi Loeb

Professor Avi Loeb's new book, Extraterrestrial, tells the tale of how he 'Oumuamua may be humanity's first interstellar messenger.

11 months ago

According to the Math, it’s Highly Unlikely That an Intelligent Civilization is Located at Alpha Centauri

In a new study, a pair of Harvard astrophysicists did the math on whether or not BLC1 is an extraterrestrial…

1 year ago