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 […]
In this session, “Lenses,” speakers look through cameras and new lenses — at subjects from the very, very big to the very, very small to the very, very far away. Wendy Freedman talks about a remote location in the Andes, far from the lights of civilization, where the stars can be seen clearly with the naked eye. In that location, […]