Improving The View Through Tissues and Organs
This summer, several undergraduate students at Caltech had the opportunity to help optimize a promising technique that can make tissues and organs—even entire organisms—transparent for study. As part of the Summer Undergraduate Research Fellowship (SURF) program, these students worked in the lab of Viviana Gradinaru, where researchers are developing such so-called clearing techniques that make it possible to peer straight through normally opaque tissues rather than seeing them only as thinly sectioned slices that have been pieced back together.
Getting To Know Super-Earths
Results from NASA's Kepler planet-hunting mission have indicated that the most common planets in the galaxy are super-Earths—those that are bigger than Earth but smaller than Neptune. Heather Knutson and her colleagues are using space telescopes to try to find out more about these worlds.
NuSTAR Discovers Impossibly Bright Dead Star
Astronomers working with NuSTAR have found a pulsating dead star beaming with the energy of about 10 million suns. The object, previously thought to be a black hole because it is so powerful, is in fact a pulsar—the incredibly dense rotating remains of a star.
8:00 pm, Wednesday, January 7
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2:00 pm, Sunday, January 25
In The Media
December 18, 2014
NASA Satellite Sends Back Most Detailed CO2 View Ever
The first global maps that use data from the OCO-2 satellite were released this week, and measure atmospheric gas to a fraction of a percent. Paul Wennberg notes that this level of detail makes OCO-2 "one of the most challenging remote missions that has ever been attempted."
December 17, 2014
Voyager 1 Surfs a Cosmic Tsunami
The plasma wave instrument aboard Voyager I captured the sound of ionized gas vibrating in interstellar space three different times between November 2014 and December 2014. Physicist Ed Stone explains how the vibrations were caused by powerful blasts of solar particles, each resulting in a "cosmic tsunami."
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