03/28/2016 17:40:35
How do some gas giant planets end up so feverishly close to their stars? NASA's Spitzer Space Telescope finds new clues.
02/24/2014 14:36:17
Jessica Stoller-Conrad
Researchers at Caltech and several other institutions have made the first detection of water in the atmosphere of a Jupiter-mass planet orbiting the nearby star tau Boötis.
02/18/2014 13:00:51
Douglas Smith
If you ask Andy Ingersoll how Caltech has contributed to our understanding of the universe, he'll tell you, "Caltech invented planetary science!" Since the field's origins 50 years ago, Caltech has become one of the top planetary-science research centers.
03/12/2013 12:28:49
Marcus Woo
Thanks to a new high-tech gadget, astronomers have observed four planets orbiting a star relatively close to the sun in unprecedented detail, revealing the roughly ten-Jupiter-mass planets to be among the most exotic ones known.
02/28/2013 13:57:41
Marcus Woo
John A. Johnson, assistant professor of planetary astronomy at the California Institute of Technology (Caltech), has been awarded the Richard P. Feynman Prize for Excellence in Teaching.
01/02/2013 18:37:19
Marcus Woo
Look up at the night sky and you'll see stars, sure. But you're also seeing planets—billions and billions of them. At least. That's the conclusion of a new study by Caltech astronomers that provides yet more evidence that planetary systems are the cosmic norm.
11/27/2012 16:29:47
Ann Motrunich
The confirmed count of planets in other solar systems has skyrocketed to more than 850, plus thousands of identified candidates. The opportunity to characterize so many solar systems has brought together Caltech planetary scientists and astronomers, who are forming a Center for Planetary Astronomy.
10/16/2012 09:21:57
Marcus Woo
Two Caltech faculty members have been awarded Packard Fellowships for Science and Engineering. Biologist Alexei Aravin and astronomer John Johnson each were awarded $875,000, to be distributed over five years.
12/02/2011 08:00:00
Marcus Woo

Discoveries of new planets just keep coming and coming. A team of astronomers led by scientists at Caltech have found 18 Jupiter-like planets in orbit around massive stars.

08/09/2011 07:00:00
Marcus Woo

Like so many things in life, it all started with a girl. In fifth grade, the girl who sat next to Keith Hawkins every day in class would check out encyclopedias and look up subjects in astronomy, admiring pictures of swirling galaxies and colorful nebulae. Hawkins would join her, and the two of them would sit together and gaze at the heavens, one page at a time.

11/29/2010 08:00:00
Kathy Svitil

Earlier this month, Eris—the distant world first discovered by Caltech's Mike Brown and colleagues back in 2005, paving the way for the eventual demotion of Pluto from planet to dwarf planet—passed fortuitously in front of a faint star in the constellation Cetus. That passage, or occultation, allowed the first direct measurement of Eris's size.

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