April 26, 2010

Stephen Hawking: Aliens may exist and could be dangerous

Posted: 09:00 PM ET


So, the world's most famous astrophysicist has some advice about whether we should or shouldn't try to make contact with creatures from outer space:

Don't do it, Stephen Hawking advises.

It would be much better for humans to keep a low profile, he says. There's a good chance we don't want aliens to come calling, Hawking says, because they very likely wouldn't be the cuddly, ET types we hope for.

"If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans," Hawking warns in a new Discovery Network TV series.

(Read more from NPR)

Filed under: Science • UFO

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April 15, 2010

Tonight on Larry King Live!

Posted: 07:00 PM ET

Ann Coulter on Sarah Palin, President Obama and what she really thinks of the Tea Party Express! Plus, she takes on actress Aisha Tyler!  Rep. Michele Bachmann and Gloria Estefan weigh in!


Obama pitches his vision for the future of the space program.  Why Buzz Aldrin has his back!  And, the inside scoop on ‘Dancing with the Stars’!  Buzz is live from the Kennedy Space Center tonight!

Do you think the Tea Party Movement will reshape the Republican Party?

Send us your thoughts about tonight's show!

Filed under: Politics • Science

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March 30, 2010

Hadron Collider breakthrough as beams collide

Posted: 05:17 PM ET

(CNN) - Scientists at the Large Hadron Collider managed to make two proton beams collide at high energy Tuesday, marking a "new territory" in physics, according to CERN, the European Organization for Nuclear Research. 

The $10 billion research tool has been accelerating the beams since November in the LHC's 17-mile tunnel on the border of Switzerland and France.

The beams have routinely been circulating at 3.5 TeV, or teraelectron volts, the highest energy achieved at the LHC so far, according to CERN, the European Organization for Nuclear Research.

The first two attempts Tuesday failed, said Steve Myers, CERN's director for accelerators. He said the beams were lost before they reached their full energy.

Experiments at the LHC may help answer fundamental questions such as why Albert Einstein's theory of relativity - which describes the world on a large scale - doesn't jibe with quantum mechanics, which deals with matter far too small to see.

The collider may help scientists discover new properties of nature. The as-yet theoretical Higgs boson, also called "the God particle" in popular parlance, could emerge within two or three years, Myers said in November.

Evidence of supersymmetry - the idea that every particle has a "super partner" with similar properties in a quantum dimension (according to some physics theories, there are hidden dimensions in the universe) - could crop up as early as 2010.

The collider has been dogged by problems. It made headlines late last year when a bird apparently dropped a "bit of baguette" into the accelerator, making the machine shut down.

Read more…

Filed under: Science

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