BICEP2 Discovers First Direct Evidence of Inflation and Primordial Gravitational Waves

Astronomers announced today that they have acquired the first direct evidence that gravitational waves rippled through our infant universe during an explosive period of growth called inflation. This is the strongest confirmation yet of cosmic inflation theories, which say the universe expanded by 100 trillion trillion times in less than the blink of an eye.

An Equation to Describe the Competition Between Genes

"The thing that makes this study really interesting is that we did our calculations before we ever did any experiments," says Rob Phillips, the Fred and Nancy Morris Professor of Biophysics and Biology at Caltech.

Research Update: Battling Infection With Microbes

In the recent study the researchers found that beneficial gut bacteria were necessary for the development of innate immune cells—specialized types of white blood cells that serve as the body's first line of defense against invading pathogens.

Bending the Light with a Tiny Chip

Imagine that you are in a meeting with coworkers or at a gathering of friends. You pull out your cell phone to show a presentation or a video on YouTube. But you don't use the tiny screen; your phone projects a bright, clear image onto a wall or a big screen. Such a technology may be on its way, thanks to a new light-bending silicon chip.

Building Artificial Cells Will Be a Noisy Business

Erik Winfree, professor of computer science, computation and neutral systems, and bioengineering, explains, "I tend to think of cells as really small robots. Biology has programmed natural cells, but now engineers are starting to think about how we can program artificial cells."

Detection of Water Vapor in the Atmosphere of a Hot Jupiter

Researchers at Caltech and several other institutions have made the first detection of water in the atmosphere of a Jupiter-mass planet orbiting the nearby star tau Boötis.

A New Laser for a Faster Internet

A new laser developed by a research group at Caltech holds the potential to increase by orders of magnitude the rate of data transmission in the optical-fiber network—the backbone of the Internet.

NuSTAR Reveals Radioactive Matter in Supernova Remnant

For the first time, NuSTAR has mapped radioactive material from the core of a supernova explosion.

A Changing View of Bone Marrow Cells

Using a novel microfluidic technique, researchers at Caltech have shown that blood stem cells might be more actively involved in battles against infection. Rather than simply replenishing immune cells after they become depleted, new research shows that blood stem cells sense danger signals directly and quickly produce new immune cells.

NOvA Sees First Long-distance Neutrinos

The NOvA experiment, centered at Fermi National Accelerator Laboratory (Fermilab) near Chicago, has detected its first neutrinos.


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