SUNSET: 
Cosmic Relief with David Grinspoon
ET on Earth?
The search for extraterrestrial intelligence should not exclude our own planet.
The True Nature of the Candidate ET Signal From Proxima Centauri
Human-made interference, not extraterrestrial technology, is responsible for the first candidate "signal of interest" detected by the project Breakthrough Listen.
Cosmic Relief with David Grinspoon
NASA Renews Interest in SETI
After a long hiatus, NASA gets back into the SETI game with a workshop on “technosignatures.”
SETI Searches Today
Several big hunts are seeking radio and laser emissions from other civilizations among the stars. From the Allen Telescope Array to [email protected], here's a rundown of all recent and current searches.
Searching for Alien Needles in the Cosmic Haystack
Humanity’s search for signs of extraterrestrial intelligence has been underway, in one form or another, for decades. But how much searching have we really done?
Orbital Path Podcasts with Michelle Thaller
Orbital Path 1: Must Be Aliens
Host Michelle Thaller talks with Bad Astronomy's Phil Plait about a conundrum: why are humans so quick to explain the unknowns of the cosmos as aliens? And why is this healthy imagination important in science?
"Breakthrough Listen": Giant Leap for SETI
A $100 million donation will radically speed up the search for artificial signals from the nearest million stars — and from trillions of much farther stars in the 100 nearest galaxies.
SETI Projects Weather Recession
Although funding has eroded for [email protected] and the Allen Telescope Array in the past few years, both alien-hunting projects have survived, thanks to donors and volunteers.
Forced "Hibernation" for SETI Telescope
Astronomers have shut down the innovative Allen Telescope Array in northern California — a huge blow to the ongoing search for extraterrestrial intelligence.
The Allen Telescope Array: SETI's Next Big Step
SETI researchers have long had to beg time on instruments built for conventional radio astronomy. Now they've built one of their own.
Seth Shostak on SETI
Sky & Telescope interviews Seth Shostak, senior astronomer at the SETI Institute, on the hunt for extraterrestrial intelligence.
A New Do-It-Yourself SETI Project
The Allen Telescope Array is swallowing terabytes of celestial radio data in the ongoing hunt for alien signals from space. The SETI Institute is about to hand out the data to anyone with ideas for new ways to sift it.
The Chance of Finding Aliens
Frank Drake's famous equation helps to quantify our chance of finding ETs — or at least to pose the essential questions.
Habitable Moons
It seems unlikely that life could arise on giant, gaseous exoplanets. But what about their moons?
Smarter SETI Strategy
Why the world's biggest search should reverse its strategy — and why the first signal we hear will probably come from an extremely powerful civilization extremely far away.
SETI Conference: Planning for a Long, Long Search
Searchers for extraterrestrial intelligence reach a humble conclusion: we don't know what we don't know.
The Future of SETI
Searches for extraterrestrial intelligence are about to expand into new realms, thanks to new advances in technology — and new thinking.
A Big New Step in the Search for ET
The world's largest optical SETI telescope begins sweeping millions of stars for laser signals from alien civilizations.