Seeing Snow in Space

An international team of researchers, including Caltech's Geoffrey Blake, has used the Atacama Large Millimeter/submillimeter Array (ALMA) to capture the first image of a snow line around a Sun-like star. The findings appear in the current issue of Science Express.

Evidence for a Martian Ocean

Researchers at the California Institute of Technology (Caltech) have discovered evidence for an ancient delta on Mars where a river might once have emptied into a vast ocean. This ocean, if it existed, could have covered much of Mars's northern hemisphere—stretching over as much as a third of the planet.
Thursday, September 26, 2013
Ramo Auditorium

Graduate TA Orientation & Teaching Conference

A Stepping-Stone for Oxygen on Earth

For most terrestrial life on Earth, oxygen is necessary for survival. But the planet's atmosphere did not always contain this life-sustaining substance, and one of science's greatest mysteries is how and when oxygenic photosynthesis—the process responsible for producing oxygen on Earth through the splitting of water molecules—first began. Now, a team led by geobiologists at the California Institute of Technology (Caltech) has found evidence of a precursor photosystem involving manganese that predates cyanobacteria, the first group of organisms to release oxygen into the environment via photosynthesis.

Bethany Ehlmann Selected as National Geographic Emerging Explorer

National Geographic Society has named Bethany Ehlmann, assistant professor of planetary science at the California Institute of Technology (Caltech), a 2013 Emerging Explorer. Ehlmann joins 16 other young scientists, educators, artists, and entrepreneurs recognized by National Geographic for making an impact on the world while still in the early stages of their careers.

Ehlmann accepted her award at the Emerging Explorers Symposium in Washington, D.C., on June 12. The symposium was part of the society's 125th anniversary celebration running June 10-14.

Brown, Farley, and Seinfeld Elected to National Academy of Sciences

Based on their distinguished achievements in original research, three Caltech professors—Mike Brown, Ken Farley, and John Seinfeld—are among the newly elected members and foreign associates.

Mars Science Laboratory: The Search for Habitable Environments

John Grotzinger, Caltech’s Fletcher Jones Professor of Geology and project scientist for Curiosity—JPL’s newest Mars rover, exploring the floor of Gale Crater—will describe its discoveries so far during a free public lecture on Wednesday, April 24.
Monday, April 1, 2013
Center for Student Services, 3rd Floor, Brennan Conference Room

Head TA Network Kick-off Meeting & Happy Hour

A Window Into Europa's Ocean Lies Right at the Surface

If you could lick the surface of Jupiter's icy moon Europa, you would actually be sampling a bit of the ocean beneath. So says Mike Brown, an astronomer at Caltech. Brown and Kevin Hand from the Jet Propulsion Laboratory (JPL) have found the strongest evidence yet that water from the vast liquid ocean beneath Europa's frozen exterior actually makes its way to the surface.

Planetary Astronomer Wins Feynman Prize for Excellence in Teaching

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.

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