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.
“The universe is teeming with planets,” and Jeremy Kasdin, an astronomer at Princeton University, wants to see them. Not in the way they’ve been detected so far, but directly. He wants to build a space telescope that will image a planet around another star and tell if it harbors life. There is probably one per star […]
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 […]