ellipsoid

Dr. Vivek Jayaraman and colleagues at the Howard Hughes Medical Institute Janelia Research Campus discovered that the ellipsoid body located in the middle of a fly's brain acts like a compass to help navigate flight even in darkness. By placing the flies into a small virtual reality arena and having the flies walk on a rotating ball, they could study the activity of neurons within the ellipsoid body while the animal was moving. These videos show how the fly experiment was done: Check out the news release for more information about this neat study.
"Galileo got it wrong. The Earth does not revolve around the Sun. It revolves around you and has been doing so for decades. At least, this is the model you are using." -Srikumar Rao It's the end of the week, so that means its time to take on another one of your questions from the question/suggestion box, and continue our ongoing Ask Ethan series! Even though there's a backlog of hundreds of questions, you should keep sending the new ones in, as all questions are fair game for any segment. This week's question comes from reader Brian Mucha, who asks us: Where did the sun and planets get their…