California Institute of Technology

Studying the physics of galaxies

Assistant Professor of Astronomy Evan Kirby arrived on campus in August. Born and raised in New Orleans, Kirby earned his BS in 2004 from Stanford University; his undergraduate thesis involved trips to Pasadena ...

Nov 03, 2014
4.7 / 5 (9) 1

Unique sky survey brings new objects into focus

An innovative sky survey has begun returning images that will be used to detect unprecedented numbers of powerful cosmic explosions-called supernovae-in distant galaxies, and variable brightness stars in our ...

Jun 15, 2009
4.4 / 5 (9) 2

Learning to tolerate our microbial self

(PhysOrg.com) -- The human gut is filled with 100 trillion symbiotic bacteria—ten times more microbial cells than our own cells—representing close to one thousand different species. "And yet, if ...

Apr 21, 2011
5 / 5 (8) 0 | with audio podcast

Voyage of the DNA Treader

Richard Feynman was right: there is plenty of room at the bottom, and the beeping, lumbering trashcans of 1950s science fiction are gradually giving way to micro-droids the size of a speck of dust . . . or even a molecule.

Dec 30, 2010
4.2 / 5 (9) 1 | with audio podcast

One-way transmission system for sound waves

While many hotel rooms, recording studios, and even some homes are built with materials to help absorb or reflect sound, mechanisms to truly control the direction of sound waves are still in their infancy. ...

Jul 26, 2011
4.6 / 5 (8) 5 | with audio podcast