Extraterrestrial Intelligence

Some Intelligent Civilizations Will Be Trapped on their Worlds

Evolution has produced a wondrously diverse variety of lifeforms here on Earth. It just so happens that talking primates with…

5 days ago

Can Alien Civilizations Detect Humanity?

One of the fascinating things about being a human in this age is that we can do more than wonder…

2 months ago

Breakthrough Listen Scans Entire Galaxies for Signals From Extremely Advanced Civilizations

In 1960, Dr. Frank Drake led the first Search for Extraterrestrial Intelligence (SETI) experiment at the National Radio Astronomy Observatory…

3 months ago

Since Aliens Obey the Laws of Physics, Can We Guess What They Look Like?

Since time immemorial, humans have gazed up at the stars and wondered if we’re alone in the universe. We have…

5 months ago

Gaia is Now Finding Planets. Could it Find Another Earth?

The ESA launched Gaia in 2013 with one overarching goal: to map more than one billion stars in the Milky…

5 months ago

Could We Find Aliens Terraforming Other Worlds?

The first early humans to use fire had no inkling of what it would lead to. Fire was one of…

6 months ago

Is Anyone Planning for Diplomacy with an Extraterrestrial Civilization?

Imagine we detect an interstellar object entering our Solar System. At first, astronomers think it's just another natural interloper like…

6 months ago

Do Technological Civilizations Depend on Atmospheric Oxygen?

Our modern technological civilization wouldn't have been possible without open-air combustion, which can only happen when atmospheric oxygen levels reach…

7 months ago

Astronomers are Searching for a Galaxy-Wide Transmitter Beacon at the Center of the Milky Way

Researchers with the SETI Institute have monitored the center of the Milky Way for possible transmissions from a galactic beacon.

9 months ago

A Sign from Space Simulates What it Would be Like to Get a Message from Aliens!

A Sign in Space project has simulated a message from an extraterrestrial intelligence and has involved the global community in…

9 months ago