Mike Brown

Professor of Planetary Astronomy, California Institute of Technology

Guest

Assistant Professor of Planetary Astronomy at the California Institute of Technology and author of How I Killed Pluto and Why It Had It Coming; discoverer of 2003 UB313, also known as 'Xena'

Mike Brown on KCRW

Ten years ago, astronomer’s shrunk the solar system by  removing Pluto  from the list of real planets. Now the solar system is getting bigger again.

Move Over Pluto, Astronomers Say There's a New Planet in Town

Ten years ago, astronomer’s shrunk the solar system by removing Pluto from the list of real planets. Now the solar system is getting bigger again.

from To the Point

Last year, astronomers at Cal Tech discovered an object they called Xena--even bigger than Pluto, and also orbiting around the Sun. That set off an astronomical controversy.

Pluto Demoted

Last year, astronomers at Cal Tech discovered an object they called Xena--even bigger than Pluto, and also orbiting around the Sun. That set off an astronomical controversy.

from Which Way, L.A.?

Since Pluto's discovery in 1930, there have been nine planets in the solar system, but a year ago, scientists at the California Institute of Technology said there were ten.

Pluto, Planet or Plan Not?

Since Pluto's discovery in 1930, there have been nine planets in the solar system, but a year ago, scientists at the California Institute of Technology said there were ten.

from To the Point

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