Web Analytics
That recently detected alien signal is actually just a terrestrial

That recently detected alien signal is actually just a terrestrial


SETI Evolution: Searching for Aliens Using Whale Songs and Radios (Op-Ed)

An illustration of planet Earth, and a satellite telescope searching for signals from alien life

Two recent stories suggest extraterrestrial life is alive and well – and advanced enough to build gargantuan objects that we can detect.

A car moves along the Extraterrestrial Highway near Rachel, Nevada, on the east side

Radio telescopes can detect fast radio bursts

Is it aliens? Scientists detect more mysterious radio signals from distant galaxy

Stephen Hawking's Alien-Hunting Project Is Investigating Strange Signals From 234 Stars

This animation shows 93 detected signals from FRB121102. Among them 21 have previously been reported

Highly magnetised rotating neutron star: This could be a source of the signals

Life probably exists beyond Earth. So how do we find it?

A color scan of the original computer printout of the "Wow!" signal as


A SETI Signal?

Smart aliens might live within 33,000 light-years of Earth. A new study explains why we haven't found them yet.

Alien theories understandable after mysterious signals, say scientists

We just sent a message to aliens who could respond by 2042

An error occurred.

The Allen Telescope Array at the Search for Extraterrestrial Intelligence (SETI) Institute has been

What Happens if We Detect Extraterrestrial Intelligence?

Why We Might Miss Extraterrestrial Life Even If It's Staring Us in the Face

Have Aliens Found Us? A Harvard Astronomer on the Mysterious Interstellar Object 'Oumuamua

Noise, not aliens: Russian-detected signal likely 'terrestrial interference'

Why a new discovery in outer space means humans should keep an 'open mind' about extraterrestrial life

Dion Lee/Vox


How Would Humanity React If We Really Found Aliens?

A Large Body of Water on Mars Is Detected, Raising the Potential for Alien LifeA Large Body of Water on Mars Is Detected, Raising the Potential for Alien ...

Update: This mysterious space signal is definitely not from aliens - The Washington Post

Aliens Found In Ohio? The 'Wow!' Signal

Wow! signal

Alien 'Wow!' signal could be explained after almost 40 years | Science | The Guardian

The Arecibo Radio Telescope, at Arecibo, Puerto Rico. H. Schweiker/WIYN and NOAO/AURA/NSF.

Every generation gets the abduction fantasy it deserves. Ours is ET versus Trump. Illustration: Zohar Lazar/New York Magazine

We're no strangers to 'alien' false alarms – one was caused by a microwave oven

Alien search detects radio signals from dwarf galaxy 3bn light years from Earth

Alien CONTACT? How scientist detected 'extraterrestrial signal' from distant constellation

Sign up

A nebula of stars

Artist's impression of interstellar asteroid 1I/2017 U1 ('Oumuamua).

We Could Find Aliens by Spotting Their Satellites

Are We In A 'Galactic Zoo' Protected By Aliens? Scientists Meet To Investigate The 'Great Silence'

Search for aliens finds rare and mysterious radio signal from billions of light years away

New Richter-like scale for alien signals

Why Can't We See Evidence of Alien Life?

This article is one of a series on:

Vrillon: the alien voice hoax that became a legend

Scientists have discovered dozens of previously unknown radio bursts

Illustration of `Oumuamua, the first-known interstellar asteroid. Its unusual shape and color offer cryptic clues about the nature of objects from other ...

SETI scientists spot 72 signals 'from alien galaxy' 3bn light years away

Click to View Full Infographic

Alien search detects radio signals from dwarf galaxy 3bn light years from Earth

Professor Stephen Hawking

NASA's New Planet Hunter Just Found Its 1st Alien World — an Evaporating 'Super-Earth'

Ming Hsu


Mysterious signal from deep space goes hyperactive

Sensitivity vs range for SETI radio searches. The diagonal lines show transmitters of different effective powers. The x-axis is the sensitivity of the ...

Alien or Natural: Strangest Sounds & Signals Detected from Space

HD 164595 alien signal

The six numbers and letters of the "Wow!" signal. Image courtesy of the OSU RO and NAAPO hide caption

artist's concept


Scientists solve mystery of 'alien' Wow! signal

Image: Observatory under the Milky Way

The WOW Signal Probably Didn't Come from Aliens, or Comets as You Recently Heard


Intelligent aliens, if they exist in the galaxy or the Universe, might be detectable

SETI scientists traced the Wow signal to an area just northwest of M55, a cluster of 100,000 stars inside the constellation Sagittarius.

This is the plan for NASA's upcoming WFIRST space telescope and its starlight-blocking coronagraph. (Credit: NASA-JPL/G. Blackwood/Noecker et al)

What would happen if we did receive a signal from aliens? DALE O'DELL/ALAMY

An image from the Deep Space Climate Observatory satellite (left), degraded to a handful of pixels (right), is a stand-in for how an Earth-like planet ...

New exoplanets, like those orbiting TRAPPIST-1, are being discovered with staggering frequency.

SpaceSignal thumb01.4x3

NASA back in the search for alien technosignatures

They are too alien[edit]

Mysterious signals from distant galaxy spark row over whether they could be from aliens. '

How to launch an interstellar probe using a laser lightsail. The tech doesn't exist yet, but it's all near-term realistic. (Credit: Breakthrough Starshot)

Jon Juarez

ALIEN MYSTERY as scientists detect SIGNAL coming from DEEP SPACE

A Large Body of Water on Mars Is Detected, Raising the Potential for Alien LifeA Large Body of Water on Mars Is Detected, Raising the Potential for Alien ...

First Exomoon Found? Neptune-Sized World Possibly Spotted Orbiting Alien Planet

Why the Search for Aliens Could Unite Us Here on Earth


Aliens may be trying to contact Earth by sending mysterious bursts of radio waves to our planet (Image: Shutterstock/Danielle Futselaar)

Lifeforms produce a variety of biosignatures that may be detectable by telescopes.

An MIT study proposes that laser technology on Earth could emit a beacon strong enough to

US Navy unveils major response to UFO sightings. '