Rarer than any metal, any mineral, so rare that if you scan the entire earth, all six million billion billion kilos or 13,000,000,000,000,000,000,000,000 pounds of our planet, you would find only one ounce of it?
What is so rare it has never been seen directly, because if you could get enough of it together, it would self-vaporize from its own radioactive heat?
With the NSA conducting surveillance on our data and Google scanning our email, how can we protect our personal information? Jon Xavier, digital producer at Silicon Valley Business Journal, discusses the services that you can use to make your information more secure and private.
For years, electrical experts have been calling for a "smart grid" that could better sense and adapt to changing conditions, from electrical outages to shifts in power consumption. Massoud Amin, referred to by some as the "father of the smart grid," talks about how and why the country should improve its aging electrical infrastructure.
Reporting in Science, researchers write of discovering four radio bursts from outer space. Physicist Duncan Lorimer, who detected the first such explosion in 2007, discusses what could be causing these radio signals, such as evaporating black holes, an idea proposed by Stephen Hawking in the 1970s.