Physics

Student Teams to Build and Fly Rockets With Onboard Payloads for NASA Rocketry Challenge

Organizers of the NASA Student Launch Projects have announced the 57 student teams whose inventive creations will soar skyward in April during the space agency's 2012-13 rocketry challenge.

NASA Hosts Nov. 15 Teleconference on Curiosity Rover Progress

NASA will host a media teleconference at 11 a.m. PST (2 p.m. EST) on Thursday, Nov. 15, to provide an update about the Curiosity rover's mission to Mars' Gale Crater.

NASA Technology Showcase Lands in Cleveland Nov. 28-30

Business leaders, space enthusiasts, students and the public are invited to attend NASA Technology Days. The free, three-day public technology showcase will take place at the Cleveland Public Auditorium and Conference Center Nov. 28-30.

Student Teams to Build and Fly Rockets With Onboard Payloads for NASA Rocketry Challenge

Organizers of the NASA Student Launch Projects have announced the 57 student teams whose inventive creations will soar skyward in April during the space agency's 2012-13 rocketry challenge.

NASA Technology Showcase Lands in Cleveland Nov. 28-30

Business leaders, space enthusiasts, students and the public are invited to attend NASA Technology Days. The free, three-day public technology showcase will take place at the Cleveland Public Auditorium and Conference Center Nov. 28-30.

NASA Television to Air Soyuz Landing Coverage Nov. 18

NASA Television will provide live coverage as three of the crew members on the International Space Station come back to Earth Sunday, Nov. 18.

New power generation technique: Hybrid nanomaterial converts light and thermal energy into electrical current

Researchers have created a hybrid nanomaterial that can be used to convert light and thermal energy into electrical current. The team built a prototype thermoelectric generator they hope can eventually produce milliwatts for use in devices such as self-powering sensors, low-power electronic devices and implantable biomedical micro-devices, they said.

Is dark energy static or dynamic?

(Phys.org)—While hypothesized dark energy can explain observations of the universe expanding at an accelerating rate, the specific properties of dark energy are still an enigma. Scientists think that dark energy could take one of two forms: a static cosmological constant that is homogenous over time and space, or a dynamical entity whose energy density changes in time and space. By examining data from a variety of experiments, scientists in a new study have developed a model that provides tantalizing hints that dark energy may be dynamic.

Surveying Earth's interior with atomic clocks

Ultraprecise portable atomic clocks are on the verge of a breakthrough. An international team lead by scientists from the University of Zurich shows that it may be possible to use the latest generation of atomic clocks to resolve structures within the Earth.

Bringing measuring accuracy to radical treatment

An international team of scientists has determined for the first time the absolute density of active substances called radicals found in a state of matter known as plasma, in a new study.

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