Allen Telescope Array


Is this mysterious space rock actually an alien spaceship?

It’s in the news because people want to know if it’s a rock or a rocket. The “it” in question is a weirdly oblong asteroid that goes by the barely pronounceable moniker 'Oumuamua.
Green Bank Telescope

FRB 121102: Radio Calling Cards from a Distant Civilization?

It’s a signal that begs for superlatives.  The Breakthrough Listen project recently announced the detection of 15 pulses of radio energy from an object known to the astronomy community as FRB 121102.
Tabby's Star

What’s Up with Tabby’s Star?

By now you have surely heard that Boyajian’s star, aka Tabby’s star, aka KIC8462852, is going through another weird dimming phase.
Galactic Center

SETI on the ATA: Galactic Center Survey

The region near the center of our galaxy contains the highest concentration of stars in the sky, yet has only been searched for ETI signals at a few “magic” frequencies. We will search a large area near the galactic center over the entire “waterhole” frequency range, from 1420 to 1720 MHz.
Ross 128

Signals from A Nearby Star System?

UPDATE July 24, 2017  

Rosetta's Target: Comet 67P/Churyumov-Gerasimenko

As Rosetta crashed into comet 67p, it dipped below the horizon for the last time as seen from the Allen Telescope Array (ATA) at 05:55pm Pacific time, September 29, 2016. I've used its signal a lot over the years to test our receiving system.
Allen Telescope Array

Meteor passes near to Allen Telescope Array

SETI Institute astronomer Peter Jenniskens notes that a very bright meteor, a so-called fireball, was seen in the vicinity of the Allen Telescope Array on Thursday, September 15 at about 7:48 pm local tim
OSIRIS-REx graph

OSIRIS-REx says hello to the ATA!

The Allen Telescope Array (ATA) uses 42 radio dishes to search for radio transmissions from ET. How do we know the system is working? To answer that question, we point the dishes in the direction of a spacecraft we know is transmitting radio signals back to Earth.

A SETI Signal?

A star system 94 light-years away is in the spotlight as a possible candidate for intelligent inhabitants, thanks to the discovery of a radio signal by a group of Russian astronomers.