Concrete is strong enough to drive trucks on, but it’s heavy. Latex rubber is lightweight, but it tears when you stretch it. Caltech professor Julia Greer is showing that the relationship between strength and weight is not graven in stone by creating brand-new materials that are incredibly strong but weigh next to nothing.
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.
2:00 pm, Sunday, January 25
6:00 pm, Tuesday, January 27
In The Media
January 07, 2015
Choosing Between Carrots and Cake is a Snap Decision
Research shows that information about how a food tastes starts to influence a person's food choices about 200 milliseconds before health attributes. "By assessing how well taste and health are related to cursor movement [in the study], we were able to determine that taste was reflected in the choice process much earlier than health," says Nikki Sullivan, the study's lead author.
January 07, 2015
In a Far-Off Galaxy, 2 Black Holes Dance Toward an Explosive Union
Scientists at Caltech's center for Data-Driven Discovery (CD3) discuss research suggesting that a pair of supermassive black holes in a distant galaxy are spiraling together and could collide within a million years. The energy released by the impact could wreck the galaxy it is in, says astronomy professor George Djorgovski.
January 03, 2015
Big Bang to Be Investigated From Balloon in AntarcticaA balloon experiment launched from Antarctica on New Year's Day carrying a six-telescope instrument that was designed by Caltech and Princeton physicists to study and potentially detect inflation in our universe. The instrument, known as Spider, will fly over the continent during its 20-day mission.
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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