Scientists Detect A Particle That Could Be A New Form Of Matter

Physicists working at the Large Hadron Collider have spotted a long sought-after exotic particle that's the strongest evidence yet for a new form of matter called a tetraquark. Here's what the discovery could mean to astrophysics. » 4/11/14 6:00pm 4/11/14 6:00pm

What are neutrinos, and how do they come from beyond our solar system?

A couple months ago, scientists with IceCube, an Antarctica-based neutrino observatory, discovered two very high-energy neutrinos — named Bert and Ernie — that appeared to have originated from beyond our solar system. This is amazing news, and we talked to the researchers about what it means. » 6/14/13 11:37am 6/14/13 11:37am

Replicating The Start Of The Universe — At 4 Trillion Degrees

Now we know how hot things got when the universe was born. We've taken the temperature of a substance that only existed when time first began. It's an ultrahot, 4-trillion degree "soup" of subatomic particles made from gold. » 2/17/10 4:00pm 2/17/10 4:00pm