In the eyes of many planetary scientists, the surface of Mars's northern hemisphere has long looked like it once contained an ocean. Now it is "sounding" that way, too.
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Feed SubscriptionLake Vostok is (Almost) Breached After 20 Million Years
Satellite composite showing location of Vostok within the Antarctic continent (NASA) Two and a half miles beneath the surface of Antarctica’s central Eastern ice sheet is a body of water 160 miles by 30 miles across known as Lake Vostok , after the Vostok research station above it, built by the former Soviet Union in 1957 and now operated by Russia.
Read More »Electrons in concert: A simple probe for collective motion in ultracold plasmas
(PhysOrg.com) -- Collective, or coordinated behavior is routine in liquids, where waves can occur as atoms act together. In a milliliter (mL) of liquid water, 1022 molecules bob around, colliding
Read More »Temperatures–Not Acid–Could Cook Coral to Death
One of the biggest natural tragedies of recent years is the deterioration of Australia's Great Barrier Reef , a vast structure of coral off the continent's east coast that supports a profusion of wildlife. In addition to overfishing and nutrient pollution, the world's largest natural structure has suffered from rising ocean temperatures. But, perhaps less well known, Australia's west coast has some massive reefs of its own, offshore in the southeastern Indian Ocean.
Read More »Temperatures–Not Acid–Could Cook Coral to Death
One of the biggest natural tragedies of recent years is the deterioration of Australia's Great Barrier Reef , a vast structure of coral off the continent's east coast that supports a profusion of wildlife.
Read More »Deep Frog Voice Signals His Chromosome Number
The eastern grey tree frog [sound] looks exactly like the closely related Cope’s grey tree frog [sound]. The big difference between the two species is beneath the surface--the eastern has twice the number of chromosomes as does the Cope’s. [More]
Read More »New spectroscopy technique enables investigation of two-dimensional electron states
Understanding and visualizing the energy states of electrons in a crystal provides important insights into many modern electronic materials, such as superconductors, or other materials that physicists can use to develop novel electronic applications. The electronic states at the surface of a crystal, or the two-dimensional layers within a sample, are of particular interest to materials scientists, but are notoriously difficult to image using conventional techniques.
Read More »Probing the Passions of Science: An Interview with Carl Zimmer on the Art of Science Writing
Click here for Part Two: Carl Zimmer Delves Beneath the Surface of Science Writing
Read More »Probing the Passions of Science: An Interview with Carl Zimmer on the Art of Science Writing
Click here for Part Two: Carl Zimmer Delves Beneath the Surface of Science Writing
Read More »Materials scientists watch electrons ‘melt’
(PhysOrg.com) -- When a skier rushes down a ski slope or a skater glides across an ice rink, a very thin melted layer of liquid water forms on the surface of the ice crystals, which allows for a smooth glide instead of a rough skid. In a recent experiment, scientists have discovered that the interface between the surface and bulk electronic structures of certain crystalline materials can act in much the same way.
Read More »Radar gun catches predator shredding turbulence in fusion plasma
Recent experiments carried out at the DIII-D tokamak in San Diego have allowed scientists to observe how fusion plasmas spontaneously turn off the plasma turbulence responsible for most of the heat loss in plasmas confined by toroidal magnetic fields. Using a new microwave instrument based on the same principles as police radar guns, researchers from UCLA observed the complex interplay between plasma turbulence and plasma flows occurring on the surface of tokamak plasmas.
Read More »Exploring the last white spot on Earth: ESRF inaugurates unique new X-ray facility
Scientists will soon be exploring matter at temperatures and pressures so extreme it can only be produced for microseconds using powerful pulsed lasers. Matter in such states is present in the Earth's liquid iron core, 2500 kilometres beneath the surface, and also in elusive "warm dense matter" inside large planets like Jupiter
Read More »UV light controls antibodies, improves biosensors
From detecting pathogens in blood samples to the study of protein synthesis, Quartz Crystal Microbalance (QCM) sensors have many uses in modern biology.
Read More »UV light controls antibodies, improves biosensors
From detecting pathogens in blood samples to the study of protein synthesis, Quartz Crystal Microbalance (QCM) sensors have many uses in modern biology. In this technique, antibodies anchored to gold electrodes on a piece of quartz crystal act like the "hooks" on the sticky side of a Velcro strap, grabbing molecules of interest as they pass by
Read More »X-ray camera makes A-grade particle detector
In the particle identification business, two pieces of information are vital: energy and spatial location. By measuring its energy you can work out the mass of your mystery particle
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