A team of researchers has analyzed what little activity exists around the black hole at the center of our galaxy. By studying 3 million seconds of observations taken by the Chandra X-Ray Observatory, the team found that much of the nearby radiation comes from material that is ejected before reaching the black hole, with very little energy arising from the black hole itself.
In a fun, exciting talk, teenager Henry Lin looks at something unexpected in the sky: distant galaxy clusters. By studying the properties of the universe's largest pieces, says the Intel Science Fair award winner, we can learn quite a lot about scientific mysteries in our own world and galaxy.
Inspired by termites and their building activities, the TERMES project is working toward developing a swarm construction system in which robots cooperate to build 3D structures much larger than themselves.
Our consciousness is a fundamental aspect of our existence, says philosopher David Chalmers: "There's nothing we know about more directly.... but at the same time it's the most mysterious phenomenon in the universe." He shares some ways to think about the movie playing in our heads.
The views from the cockpit of NASA's P-3B aircraft on an Operation IceBridge campaign are truly stunning. The mission doesn't travel to both ends of the Earth for the scenery of course—the airborne mission is there to collect radar, laser altimetry, and other data on the changing ice sheets, glaciers, and sea ice of the Arctic and Antarctic.