Since the dawn of recorded history, Man has pondered the possibility of life beyond Earth. Our ideas about extraterrestrial life have become an integral part of our culture, permeating everything from cinema to psychiatry. We have sent messages aboard...

It is an old question, and a persistent one: Is there life elsewhere in the cosmos? Is the universe more than just an enormous collection of dead rock and glowing gas, with only one inhabited...

By the end of the twentieth century, space probes—some of them conducting long-term studies of planets and their satellite systems—had visited every planet in the solar system except Pluto. In addition to these exploratory missions, a...

Extraterrestrial life is life originating outside of Earth. It is the subject of astrobiology, and its existence remains theoretical. There is no evidence of extraterrestrial life that has been widely accepted by the scientific community. Many...

One-third of all Americans believe that there are beings on other planets who frequently visit the earth. Some 100 billion galaxies are said to exist, with more being discovered all the time, so it does seem likely that there is other unicellular life. Intergalactic...

[The author considers the basic theological issues regarding the possible existence of extraterrestrials, i.e. intelligent and free beings with some form of body or matter. After reviewing the considered opinions of five theologians chosen from the history of theology, he then asks whether any...

Engineers will travel to this Puerto Rican coastal town in coming weeks to study whether to shut down the world's largest radio telescope, which was featured in the movie "Contact" but now faces steep budget cuts, observatory officials said Thursday.Opened in 1963, the Arecibo telescope,...

Another terrorist attack, a warmer planet, death and destruction from a natural disaster. These are among Americans' grim predictions for the United States in 2007.Only a minority of people think the U.S. will go to war with Iran or North Korea over those countries' nuclear...