SETI: 50 years of searching for ET

Publication:   Date: April 26, 2010   View Article

Somewhere out there, alien civilizations might be communicating with each other. They might even be trying to contact us. Fifty years ago, this reasoning compelled astronomer Frank Drake to point a radio telescope at the stars and listen for chatter. He didn’t hear E.T. calling us, calling home, or calling anywhere else during his four-month-long experiment at the National Radio Astronomy Observatory in Green Bank, W.Va., but the effort officially kicked off what is known as SETI, the search for extraterrestrial intelligence.

6 signs that aliens might exist

Publication:   Date: December 11, 2008   View Article

Do aliens exist? Explore the evidence — from the scientifically plausible to the incredible — suggesting that we may not be alone in the universe.

When E.T. phoned home, where did he call?

Publication:   Date: April 28, 2008   View Article

When E.T. phoned home, where did he call? If it was a local connection, Mars was the likeliest place. Learn about Mars and seven more relatively nearby targets where scientists believe they could find E.T.

Alien Life May Be “Weirder” Than Scientists Think, Report Says

Publication: National Geographic News   Date: July 6, 2007   View Article

Think life on Earth is weird? It might be even weirder on distant planets and moons, according to a new report.

Instead of thriving on water, extraterrestrial organisms might live in a sea of liquid methane. Or instead of getting energy from the sun, they might thrive on hydrochloric acid.

“Hot Ice” Planet Discovered, Covered in “Solid Water,” Experts Say

Publication: National Geographic News   Date: May 17, 2007   View Article

A Neptune-size planet likely covered in hot—but solid—water has been discovered in a snug orbit around a nearby star, a team of astronomers announced today.

While this planet is not fit for life, the finding suggests astronomers may soon detect habitable planets in similar alien solar systems, said Michaël Gillon of the University of Liège in Belgium.

New Alien-Life Search Aims to Eavesdrop on ETs

Publication: National Geographic News   Date: January 11, 2007   View Article

Do extraterrestrials sweep their skies with radar to scan for incoming missiles?

If so, Avi Loeb of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Massachusetts, thinks he can find the radio signals leaked from warring alien civilizations.

© 2008-2010 Collected Writings By John Roach