NASA announced that the Hubble Space Telescope has successfully measured the “10th Planet” and found it to be 1,490 miles, only slightly larger than its neighbor Pluto at 1,422 miles wide. Planetary Scientist at CalTech Mike Brown led the team that recently discovered the newly nicknamed “Xena.” The measurements were snapped in visible light photos taken Dec. 9 and 10, 2005, and just accepted for publication in the Astrophysical Journal. Thankfully, Brown chose the name Xena over space alien Xenu, who has also recently been in the news.
Underwater, there’s a world full of the bioluminescent and colorfully firework-like creatures. This is what David Gallo showed us in his classic talk from TED2007, “Underwater astonsihments.” The most interesting part: We have only explored about 3% of the world’s oceans, Gallo explains and, in this talk, he shares some views of that fascinating fraction […]
As Russian scientists gather fragments of the 10-ton meteor that streaked across the sky on Friday at 33,000 miles per hour, TED Fellow Hakeem Oluseyi took to the airwaves to weigh in on the event. Oluseyi is an astrophysicist and teacher determined to bring science to poor classrooms across the world. His work has spanned […]