NASA

NASA-JPL

Amy Mainzer knows a lot about infrared. She was deputy project scientist for the Wide-filed Infrared Survey Explorer (WISE), which used infrared to study the entire sky. She's now principle investigator on NEOWISE, a project that uses WISE images to study asteroids and comets. Amy Mainzer joined us for the inaugural episode of “Blue Dot.”

NASA-JPL

It's hard for scientists to study "dark matter" — they can really only learn about it by studying its effects on the things we can see. Gary Prézeau, an astrophysicist with NASA's Jet Propulsion Laboratory, has published a study which explains how streams of dark matter pass through the Earth and form extremely dense filaments, or "hairs." The "roots" of these hairs would originate not in Earth itself but about twice as far away as the moon and — well, don't take our word for it. Listen above to Dave Schlom's conversation with Gary Prézeau.

NASA

Dave Schlom talks with Daniel Stern, project scientist on NASA's Nuclear Spectroscopic Telescope Array (NuSTAR). The array looks for supermassive black holes, and has recently discovered that there may be many more in the universe than previously thought.

NASA

Is there water on Mars? Was there at some point? If so, what are the implications for life on the Red Planet? Dave Schlom talks to Leslie Tamppari about the recent findings of the Mars Reconnaissance Orbiter that point to new evidence for water on Mars, and what that might mean.

The dwarf planet Ceres is the largest object in the Asteroid Belt. NASA's Dawn spacecraft is using its special ion engine to stay in orbit around Ceres. Dave Schlom talks with mission director and chief engineer Mark Rayman about the craft and what wonderful new science it will send back next.

Pages