The Sciences
If Photons Have Zero Mass, How Can Black Holes Pull Them In? [Video]
New York University research scientist Gabe Perez-Giz answers viewer questions submitted to our YouTube Spacelab Channel
Ask the Experts776 articles archived since 1845
Tech
How to Kick-Start Innovation with Free Data
Weather and GPS information stimulated the economy with new products and services. Todd Park, the U.S. chief technology officer, wants to repeat that success with the rest of the government’s data trove...
Health
Is Cancer Contagious? Could Hugo Chávez Have Been Deliberately Infected?
The late Venezuelan president implied that his enemies gave him cancer. Katherine Belov, an expert on transmissible cancer in Tasmanian devils, says that is unlikely—but not impossible
Space
How Does Science Determine the Edge of the Universe? [Video]
Theoretical physicist and New York University professor Matthew Kleban answers viewer questions submitted to YouTube's Spacelab Channel
Space
NASA's "Mohawk Guy" Explains the Thrill of Exploring Mars
Spotted at the State of the Union address, Bobak Ferdowsi, the Mars Curiosity flight engineer famous for his hairstyle, describes his role as an ambassador for Mars
Space
What Do We Know about the Russian Meteor?
Meteor researcher Margaret Campbell-Brown recaps the latest research into the cause of this morning’s fireball over Chelyabinsk
The Sciences
What Does North Korea’s Latest Nuclear Test Tell Us about Its Atomic Ambitions?
On Tuesday the country conducted its third underground nuclear explosion, a blast estimated to be the same as a six- or seven-kiloton atomic bomb
Tech
When Will the Internet Reach Its Limit (and How Do We Stop That from Happening)?
The head of Bell Labs Research says the Internet should deal in information rather than simply bits and bytes
The Sciences
Why Hasn't the Whole Universe Collapsed into an Enormous Black Hole? [Video]
Scientific American contributing editor George Musser answers viewer questions submitted to YouTube's Spacelab Channel
Health
Ask the Experts: Can Aging Be Controlled?
Ongoing research increasingly points to more than one cause in genes and the environment
