Heavens

Restoring trust in VA health care

(SACRAMENTO, Calif.) — In the wake of recent revelations of overly long patient wait times and systematic manipulation and falsification of reported wait-time data, UC Davis and Harvard public policy leaders believe the Department of Veterans Affairs (VA) health-care system's problems can be fixed by strong leadership, greater transparency and reforms that refocus the organization on its primary mission of providing timely access to consistently high-quality care.

NASA sees remnants of Tropical Storm Boris merging with Gulf low

The National Hurricane Center issued the final bulletin on the remnants of Boris on June 4 at 2100 UTC (5 p.m. EDT). At that time, the center of the remnant low pressure area was near 16.5 north latitude and 94.0 west longitude, about 80 miles east of Salina Cruz, Mexico. As has been the case with Boris for days, its remnants continued to move slowly and were only tracking north at 1 knot (1.1 mph/1.8 kph) per hour. Maximum sustained winds 20 knots (23 mph/37 kph).

Fasting triggers stem cell regeneration of damaged, old immune system

In the first evidence of a natural intervention triggering stem cell-based regeneration of an organ or system, a study in the June 5 issue of the Cell Press journal Cell Stem Cell shows that cycles of prolonged fasting not only protect against immune system damage — a major side effect of chemotherapy — but also induce immune system regeneration, shifting stem cells from a dormant state to a state of self-renewal.

Overcoming barriers to successful use of autonomous unmanned aircraft

WASHINGTON -- While civil aviation is on the threshold of potentially revolutionary changes with the emergence of increasingly autonomous unmanned aircraft, these new systems pose serious questions about how they will be safely and efficiently integrated into the existing civil aviation structure, says a new report from the National Research Council. The report identifies key barriers and provides a research agenda to aid the orderly incorporation of unmanned and autonomous aircraft into public airspace.

Has solar activity influence on the Earth's global warming?

A recent study demonstrates the existence of significant resonance cycles and high correlations between solar activity and the Earth's averaged surface temperature during centuries. This provides a new clue to reveal the phenomenon of global warming in recent years.

Sea star disease epidemic surges in Oregon, local extinctions expected

CORVALLIS, Ore. – Just in the past two weeks, the incidence of sea star wasting syndrome has exploded along the Oregon Coast and created an epidemic of historic magnitude, one that threatens to decimate Oregon's entire population of purple ochre sea stars.

Prior to this, Oregon had been the only part of the West Coast that had been largely spared this devastating disease.

NASA sees Depression Boris mOVING over Mexico with heavy rainfall

Tropical Depression 2E strengthened into Tropical Storm Boris briefly on June 3 before making landfall in southern Mexico and weakening into a depression. While Boris was building to tropical storm strength, NASA's Aqua and TRMM satellites passed overhead identifying heavy rainfall and the extent of the storm.

Surprisingly strong magnetic fields challenge black holes' pull

A new study of supermassive black holes at the centers of galaxies has found magnetic fields play an impressive role in the systems' dynamics. In fact, in dozens of black holes surveyed, the magnetic field strength matched the force produced by the black holes' powerful gravitational pull, says a team of scientists from the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and Max Planck Institute for Radio Astronomy (MPIfR) in Bonn, Germany. The findings are published in this week's issue of Nature.

Astronomers discover first Thorne-Zytkow object, a bizarre type of hybrid star

In a discovery decades in the making, scientists have detected the first of a "theoretical" class of stars first proposed in 1975 by physicist Kip Thorne and astronomer Anna Żytkow. Thorne-Żytkow objects (TŻOs) are hybrids of red supergiant and neutron stars that superficially resemble normal red supergiants, such as Betelguese in the constellation Orion. They differ, however, in their distinct chemical signatures that result from unique activity in their stellar interiors.

Observed by Texas telescope: Light from huge explosion 12 billion years ago reaches Earth

Intense light from the enormous explosion of a star more than 12 billion years ago — shortly after the Big Bang — recently reached Earth and was visible in the sky.

Known as a gamma-ray burst, light from the rare, high-energy explosion traveled for 12.1 billion years before it was detected and observed by a telescope owned by Southern Methodist University, Dallas.

NASA should maintain long-term focus on Mars as 'horizon goal' for human spaceflight

WASHINGTON – Arguing for a continuation of the nation's human space exploration program, a new congressionally mandated report from the National Research Council concludes that the expense of human spaceflight and the dangers to the astronauts involved can be justified only by the goal of putting humans on other worlds. The report recommends that the nation pursue a disciplined "pathway" approach that encompasses executing a specific sequence of intermediate accomplishments and destinations leading to the "horizon goal" of putting humans on Mars.

Emotion drives customers to use smartphones with bigger screens

Bigger smartphone screen size may be better for more than just practical reasons, according to researchers. Participants in a study on smartphones indicated that emotional reasons might influence their decision to buy smartphones with bigger screens even more than practical ones, said S. Shyam Sundar, Distinguished Professor of Communications and co-director of the Media Effects Research Laboratory, Penn State.

Black hole 'batteries' keep blazars going and going

Astronomers studying two classes of black-hole-powered galaxies monitored by NASA's Fermi Gamma-ray Space Telescope have found evidence that they represent different sides of the same cosmic coin. By unraveling how these objects, called blazars, are distributed throughout the universe, the scientists suggest that apparently distinctive properties defining each class more likely reflect a change in the way the galaxies extract energy from their central black holes.

First light for SPHERE exoplanet imager

SPHERE passed its acceptance tests in Europe in December 2013 and was then shipped to Paranal. The delicate reassembly was completed in May 2014 and the instrument is now mounted on VLT Unit Telescope 3.

Astronomers discover ancient worlds from another galaxy next door

An international team of scientists, led by astronomers at Queen Mary University of London, report of two new planets orbiting Kapteyn's star, one of the oldest stars found near the Sun. One of the newly-discovered planets could be ripe for life as it orbits at the right distance to the star to allow liquid water on its surface.