For the first time since September 2008, the Large Hadron Collider (LHC) has circulated a beam of protons fully around its 17 mile-long ring of supercooled electromagnets.


As the LHC starts up, what exotic physics does a key scientist hope to discover?
The Mars rover has been suffering bouts of amnesia and is currently stuck in the sand.
A rogue star mysteriously exploded in 2002. Was it the victim of a cosmic smash-up?

The new tech could spare burn victims from painful skin grafts.
Solar homes built for a competition retire as the residences for campus students.
A new computer system simulates the thinking power of a cat's brain.

As we bid farewell to Oprah's talk show, we find out what made her so influential.
New advice counsels against teaching women how to do self exams for cancer.
If you hear "Avalanche!," do you know what to do next?

Galloping fossil fuel emissions are outrunning the oceans' ability to absorb them.
Need another reason to quit smoking?
Shark attack victims are celebrating a Senate vote to help protect their attackers.

The macabre remains of the famous, once-damned astronomer were spotted at an auction.
The debate over the Shroud of Turin is reignited by alleged writing on the artifact.
Find out how this paranormal being maintains its legacy.

About 15,000 years ago, some of the largest mammals in North America disappeared off the face of the Earth.
A 20-foot-long crocodile with three sets of fangs once roamed parts of northern Africa.
"Hominid" is a new play that explores the mystery and mayhem of the lives of chimps.

Have archaeologists uncovered the real curse of the mummies?
Zahi Hawass of Egypt's Supreme Council of Antiquities sits down with Discovery News.
An effort is underway to care for the dogs who wander through the Roman ruins.

The Utah species is proving crucial for determining patterns of duck-billed dinosaur evolution.
Bob Bakker, curator of the duck-billed dinosaur mummy, tells us about this species.
Safety concerns prevent the public from seeing one of the largest of dinosaur bones.
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