Physics

A new way to trap light: Phenomenon could lead to new types of lasers and sensors

There are several ways to "trap" a beam of light -- usually with mirrors, other reflective surfaces, or high-tech materials such as photonic crystals. But now researchers have discovered a new method to trap light that could find a wide variety of applications.

NASA Reveals Plans for New Mars Rover, to Launch in 2020

Don't be fooled. While these blueprints look a lot like the Curiosity rover now roaming the Red Planet, they actually depict NASA's new and improved version set to launch in 2020. The rover doesn't have a name yet, but NASA revealed its plans for the jacked-up version of the vehicle yesterday, and it sounds pretty darn cool.
NASA plans to rely on Curiosity's basic design for the framework of the next generation rover, but will upgrade it with a suite of fancy new scientific instruments. The t

Gaps in Stars’ Dust May Not Signal Exoplanets, After All

Sometimes when there’s smoke, there might not be fire.

That is, the most obvious explanation for a phenomenon turns out not to be the only one. Take the dusty disks that can surround young stars: if you spot a gap within the dust that goes all the way around the star, odds are it’s because of a planet clearing out that gap during its orbit.

That makes sense, but a paper in this week’s Nature points out that the gap might instead be the work of gas within the dusty disk.

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Heat radiation of small objects: Beyond Planck's equations

Objects that are smaller than the wavelength of thermal radiation cannot radiate heat efficiently. A generalized theory of thermal radiation has now been experimentally confirmed at the level of a single object at the Vienna University of Technology.

NASA Announces Education Research Program Award Recipients

NASA has awarded $10.5 million to colleges and universities to conduct research and technology development in areas important to the agency's mission, develop faculty and support higher education students.

NASA Announces Education Research Program Award Recipients

NASA has awarded $10.5 million to colleges and universities to conduct research and technology development in areas important to the agency's mission, develop faculty and support higher education students.

NASA Satellite Provides First View of the Solar System's Tail

Like a comet, the solar system has a tail. NASA's Interstellar Boundary Explorer (IBEX) has for the first time mapped out the structure of this tail, which is shaped like a four-leaf clover.

NASA Announces Education Research Program Award Recipients

NASA has awarded $10.5 million to colleges and universities to conduct research and technology development in areas important to the agency's mission, develop faculty and support higher education students.

NASA, Space Station Partners Announce Future Crew Members

NASA and its international partners have appointed three International Space Station crew members to round out future expeditions to the orbiting laboratory.

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