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.
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“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 […]
“Are we alone? Is there life out there?” asks Sara Seager on the stage in Session 4 of TED2015. “These questions have been around for thousands of years since the days of the Greek philosophers. I’m here to tell you just how close we are getting.” Seager is a professor at MIT who has been referred […]