Would Discovery of Alien Life Forms Alter Religious Views?

June 25, 2012 Updated Jun 25, 2012 at 3:25 PM PDT

The discovery of life beyond Earth would shake up our view of humanity's place in the universe, but it probably wouldn't seriously threaten organized religion, experts say.

Religious faith remains strong in much of the world despite scientific advances showing that Earth is not the center of the universe, and that our planet's organisms were not created in their present form but rather evolved over billions of years.

So it's likely that religion would also weather any storms caused by the detection of E.T., researchers say.

"I think there are reasons that we might initially think there are going to be some problems," said Doug Vakoch, director of Interstellar Message Composition at the SETI (Search for Extraterrestrial Intelligence) Institute in Mountain View, Calif. "My own hunch is they're probably not going to be as severe as we might initially think."

Vakoch spoke Sunday at the SETICon 2 conference, in a panel discussion called "Would Discovering ET Destroy Earth's Religions?"

The Bible, Koran and other sacred texts of the world's major religions stress God's special concern for humanity and for Earth. So the discovery of aliens — microbes on Mars, say, or signals from an intelligent civilization in another solar system — might seem threatening, by implying that we and our planet aren't all that special.

But our species has had plenty of time to get used to this idea. Nicolaus Copernicus made perhaps the first powerful case for it in 1543, when his seminal work "On the Revolutions of the Celestial Spheres" showed that Earth revolves around the sun, rather than the other way around.

"We haven't been the center of the universe for a while now — four centuries," said panelist Seth Shostak, a senior astronomer at the SETI Institute.

And recent alien planet discoveries continue to remind us of this fact. Scientists have already detected more than 700 planets beyond our solar system, and several thousand more await confirmation by follow-up observations. Some of these exoplanets are small and rocky, like Earth, and some orbit in their stars' habitable zone, that just-right range of distances where liquid water could exist on the planet.

We also have a few historical test runs that shed light on how people might react if we ever do discover E.T., Shostak added.

In the early 20th century, for example, many people regarded the so-called "canals" of Mars as strong evidence of an intelligent civilization on the Red Planet. And in the mid-1990s, scientists announced the discovery of possible microfossils in the Martian meteorite known as ALH 84001.

In neither case did the walls of churches, mosques and temples start to crumble.

"This experiment's been run many times, and people never go nuts," Shostak said. (The debate over ALH 84001 continues today, but most Mars scientists remain unconvinced that it contains strong indications of life.)

So rather than being shaken to its foundations by the confirmation of life on another planet or moon, organized religion may accept the news, adapt and move on.

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