April 04, 2013

TIME AND SPACE
background starsWhat Is Behind Einstein’s Turbulences?
Munich, Germany (SPX) Apr 04, 2013 – The American Nobel Prize Laureate for Physics Richard Feynman once described turbulence as “the most important unsolved problem of classical physics”, because a description of the phenomenon from first principles does not exist. This is still regarded as one of the six most important problems in mathematics today. David Radice and Luciano Rezzolla from the Max Planck Institute for Gravitat … more

IRON AND ICE
Collision Course? A Comet Heads for Mars
Huntsville AL (SPX) Apr 04, 2013 – Over the years, the spacefaring nations of Earth have sent dozens of probes and rovers to explore Mars. Today there are three active satellites circling the red planet while two rovers, Opportunity and Curiosity, wheel across the red sands below. Mars is dry, barren, and apparently lifeless. Soon, those assets could find themselves exploring a very different kind of world. “There is a smal … more

EXO WORLDS
Astronomers Anticipate 100 Billion Earth-Like Planets
Auckland, New Zealand (SPX) Apr 04, 2013 – Researchers at The University of Auckland have proposed a new method for finding Earth-like planets, and they anticipate that the number will be in the order of 100 billion. The strategy uses a technique called gravitational microlensing, currently used by a Japan-New Zealand collaboration called MOA (Microlensing Observations in Astrophysics) at New Zealand’s Mt. John Observatory. Their w … more

MARSDAILY
Used Parachute on Mars Flaps in the Wind
Tucson AZ (SPX) Apr 04, 2013 – These seven HiRISE images were acquired between August 12, 2012 and January 13, 2013, and show distinct changes in the parachute (at bottom, attached to the backshell at top). In the first four images there are only subtle changes, perhaps explained by differences in viewing and illumination geometry. Sometime between September 8, 2012 and November 30, 2012, there was a major change in whi … more

TIME AND SPACE
Shape from sound – new methods to probe the universe
Princeton NJ (SPX) Apr 04, 2013 – As the universe expands, it is continually subjected to energy shifts, or “quantum fluctuations,” that send out little pulses of “sound” into the fabric of spacetime. In fact, the universe is thought to have sprung from just such an energy shift. A recent paper in the journal Physical Review Letters reports a new mathematical tool that should allow one to use these sounds to help reveal th … more

SOLAR SCIENCE
Europe readies for solar storm risks
Brussels (AFP) April 03, 2013 – Europe launched its first space weather coordination centre Wednesday to raise the alarm for possible satellite-sizzling solar storms that also threaten astronauts in orbit, plane passengers and electricity grids on Earth. Though impossible to predict, a worst-case scenario mega-storm can happen at any time, leaving the world without Internet, telephones, television, electricity and air and … more

STELLAR CHEMISTRY
Supernova remnant 1987A continues to reveal its secrets
Perth, Australia (SPX) Apr 03, 2013 – A team of astronomers led by the International Centre for Radio Astronomy Research (ICRAR) have succeeded in observing the death throws of a giant star in unprecedented detail In February of 1987 astronomers observing the Large Magellanic Cloud, a nearby dwarf galaxy, noticed the sudden appearance of what looked like a new star. In fact they weren’t watching the beginnings of a star but th … more