On April 11th, a large solar flare erupted-- not as big as an X-class flare, but the most powerful so far of 2013. NASA's Solar Dynamics Observatory captured the event in detail (pictured). More at Space.com.
Retired NASA astronaut Ron Garan is also a highly decorated fighter pilot as well as an explorer, entrepreneur, and humanitarian who believes that appropriately designed and targeted social enterprise can solve many of the problems facing our world. In the first half, he discussed his transformative experiences working aboard the International Space Station.
In the latter half, medical sociologist Robert E. Bartholomew, PhD shared his latest work uncovering the little-known scientific evidence underlying supposed hauntings, immortalized in familiar Hollywood films including The Exorcist, Poltergeist and The Conjuring.