ScienceDaily: Top Technology News

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• Weighing particles at the attogram scale
• NASA's Kepler provides insights on enigmatic planets
• Recently reactivated NASA spacecraft spots its first new asteroid
• 'Hand of God': Dead star and distant black holes dazzle in X-rays
• Understanding secondary light emission by plasmonic nanostructures may improve medical imaging
• Towards perfect control of light waves
• Viewing macro behaviors of ultra-cold quantum gases through the micro-world
• New imaging technique signals breakthrough in treatment of IBS

Weighing particles at the attogram scale Posted: 13 Jan 2014 12:42 PM PST A new device can measure masses as small as one millionth of a trillionth of a gram, in solution.

NASA's Kepler provides insights on enigmatic planets Posted: 13 Jan 2014 10:07 AM PST More than three-quarters of the planet candidates discovered by NASA's Kepler spacecraft have sizes ranging from that of Earth to that of Neptune, which is nearly four times as big as Earth. Such planets dominate the galactic census but are not represented in our own solar system. Astronomers don't know how they form or if they are made of rock, water or gas.

Recently reactivated NASA spacecraft spots its first new asteroid Posted: 13 Jan 2014 10:01 AM PST NASA's Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) spacecraft has spotted a never-before-seen asteroid -- its first such discovery since coming out of hibernation last year.

'Hand of God': Dead star and distant black holes dazzle in X-rays Posted: 13 Jan 2014 09:58 AM PST Two new views from NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, showcase the telescope's talent for spying objects near and far. One image shows the energized remains of a dead star, a structure nicknamed the "Hand of God" after its resemblance to a hand. Another image shows distant black holes buried in blankets of dust.

Understanding secondary light emission by plasmonic nanostructures may improve medical imaging Posted: 13 Jan 2014 09:51 AM PST Applications in imaging and sensing typically involve the emission of light at a different wavelength than the excitation, or "secondary light emission." The interpretation of resonant secondary light emission in terms of fundamental processes has been controversial for 40 years. In new work, researchers found that resonant electronic Raman scattering and resonant fluorescence may both be useful descriptions of the secondary emission.

Towards perfect control of light waves Posted: 13 Jan 2014 07:48 AM PST Scientists have constructed a detector, which provides a detailed picture of the waveforms of femtosecond laser pulses (1 fs = 10-15 seconds). Knowledge of the exact waveform of these pulses enables scientists to reproducibly generate light flashes that are a thousand times shorter -- lasting only for attoseconds -- and can be used to study ultrafast processes at the molecular and atomic levels.

Viewing macro behaviors of ultra-cold quantum gases through the micro-world Posted: 13 Jan 2014 07:09 AM PST Scientists have been able to observed, for the first time, the collective spin dynamics of ultra-cold fermions with large spins.

New imaging technique signals breakthrough in treatment of IBS Posted: 09 Jan 2014 06:19 AM PST Recent work of scientists is leading the world in exploiting MRI technology to assist in the treatment and diagnosis of Irritable Bowel Syndrome (IBS), a condition that causes serious inconvenience and discomfort to sufferers.

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