News tagged with chemical science

Life on Mars theory boosted by new methane study

Scientists have ruled out the possibility that methane is delivered to Mars by meteorites, raising fresh hopes that the gas might be generated by life on the red planet, in research published tomorrow in Earth an ...

Space & Earth / Space Exploration

created Dec 08, 2009 | popularity 4.9 / 5 (32) | comments 11

Scientists create tiny RNA molecule with big implications for life's origins

An extremely small RNA molecule created by a University of Colorado at Boulder team can catalyze a key reaction needed to synthesize proteins, the building blocks of life. The findings could be a substantial ...

Chemistry / Biochemistry

created Feb 22, 2010 | popularity 4.7 / 5 (21) | comments 4 | with audio podcast

New ultracapacitor recharges in under a millisecond

(PhysOrg.com) -- A new ultracapacitor or electric double-layer capacitor (DLC) design has been announced in the journal Science this week, and could pave the way for smaller and lighter portable electronics device ...

Nanotechnology / Nanomaterials

created Sep 24, 2010 | popularity 4.4 / 5 (21) | comments 7 | with audio podcast report

Inexpensive catalyst that makes hydrogen gas 10 times faster than natural enzyme

Looking to nature for their muse, researchers have used a common protein to guide the design of a material that can make energy-storing hydrogen gas. The synthetic material works 10 times faster than the original ...

Chemistry / Materials Science

created Aug 11, 2011 | popularity 4.6 / 5 (20) | comments 9 | with audio podcast

Researchers identify dominant chemical that attracts mosquitoes to humans

Scientists at the University of California, Davis, have identified the dominant odor naturally produced in humans and birds that attracts the blood-feeding Culex mosquitoes, which transmit West Nile virus ...

Chemistry / Biochemistry

created Oct 26, 2009 | popularity 4.8 / 5 (18) | comments 5

Darwin in a test tube: Scientists make molecules that evolve, compete, mimick behavior of Darwin's finches

As described in an article published this week in an advance, online edition of the journal Proceedings of the National Academy of Sciences (PNAS), the work demonstrates some of the classic principles of evolution. For in ...

Biology / Evolution

created Apr 29, 2009 | popularity 4.7 / 5 (18) | comments 6

The pre-history of life: Elegantly simple organizing principles seen in ribosomes

With few exceptions, all known forms of life on our planet rely on the same genetic code to specify the amino acid composition of proteins. Although different hypotheses abound, just how individual amino acids ...

Biology / Cell & Microbiology

created Apr 12, 2010 | popularity 4.8 / 5 (17) | comments 0 | with audio podcast

Cars Emerge as Key Atmospheric Warming Force: Study

(PhysOrg.com) -- For decades, climatologists have studied the gases and particles that have potential to alter Earth's climate. They have discovered and described certain airborne chemicals that can trap incoming ...

Space & Earth / Earth Sciences

created Feb 19, 2010 | popularity 2.9 / 5 (27) | comments 49 | with audio podcast

Meteorite just one piece of an unknown celestial body

(PhysOrg.com) -- Scientists from all over the world are taking a second, more expansive, look at the car-sized asteroid that exploded over Sudan's Nubian Desert in 2008. Initial research was focused on classifying ...

Space & Earth / Space Exploration

created Dec 15, 2010 | popularity 4.7 / 5 (16) | comments 5 | with audio podcast

First stars in universe were not alone

The first stars in the universe were not as solitary as previously thought. In fact, they could have formed alongside numerous companions when the gas disks that surrounded them broke up during formation, ...

Space & Earth / Astronomy

created Feb 04, 2011 | popularity 4.7 / 5 (16) | comments 4 | with audio podcast

Improving batteries' energy storage

MIT researchers have found a way to improve the energy density of a type of battery known as lithium-air (or lithium-oxygen) batteries, producing a device that could potentially pack several times more energy ...

Technology / Energy & Green Tech

created Jul 25, 2011 | popularity 4.9 / 5 (15) | comments 0 | with audio podcast

Physicists control quantum tunneling with light for the first time

Scientists at the Cavendish Laboratory in Cambridge have used light to help push electrons through a classically impenetrable barrier. While quantum tunnelling is at the heart of the peculiar wave nature of particles, this ...

Physics / Quantum Physics

created Apr 05, 2012 | popularity 4.9 / 5 (15) | comments 11 | with audio podcast

New driving force for chemical reactions discovered

New research just published in the journal Science by a team of chemists at the University of Georgia and colleagues in Germany shows for the first time that a mechanism called tunneling control may drive chemical reacti ...

Chemistry / Analytical Chemistry

created Jun 09, 2011 | popularity 4.8 / 5 (15) | comments 1 | with audio podcast

New class of stellar explosions discovered

They're bright and blue-and a bit strange. They're a new type of stellar explosion that was recently discovered by a team of astronomers led by the California Institute of Technology (Caltech). Among the most ...

Space & Earth / Astronomy

created Jun 08, 2011 | popularity 4.8 / 5 (14) | comments 12 | with audio podcast

Breakthrough in designing cheaper, more efficient catalysts for fuel cells

University of California, Berkeley, chemists are reimagining catalysts in ways that could have a profound impact on the chemical industry as well as on the growing market for hydrogen fuel cell vehicles.

Chemistry / Materials Science

created Feb 23, 2012 | popularity 4.8 / 5 (13) | comments 5 | with audio podcast