California Institute of Technology

How photosynthesis changed the planet

Two and a half billion years ago, single-celled organisms called cyanobacteria harnessed sunlight to split water molecules, producing energy to power their cells and releasing oxygen into an atmosphere that ...

Nov 20, 2014
5 / 5 (1) 0

Converting data into knowledge

When a movie-streaming service recommends a new film you might like, sometimes that recommendation becomes a new favorite; other times, the computer's suggestion really misses the mark. Yisong Yue, assistant ...

Nov 17, 2014
2.3 / 5 (3) 0

Figuring out how we get the nitrogen we need

(Phys.org) —Nitrogen is an essential component of all living systems, playing important roles in everything from proteins and nucleic acids to vitamins. It is the most abundant element in Earth's atmosphere ...

Oct 28, 2014
5 / 5 (3) 3

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