Year in space put US astronaut’s disease defenses on alert – The Associated Press
Science and Nature

Year in space put US astronaut’s disease defenses on alert – The Associated Press

WASHINGTON (AP) — Nearly a year in space put astronaut Scott Kelly’s immune system on high alert and changed the activity of some of his genes compared to his Earth-bound identical twin, researchers said Friday. Scientists don’t know if the changes were good or bad but results from a unique NASA twins study are raising…

Gravitational waves: Black hole detector to get upgrade – BBC News
Science and Nature

Gravitational waves: Black hole detector to get upgrade – BBC News

Image copyright NSF Image caption The LIGO Louisiana lab that detected gravitational waves is in line for an upgrade The UK and US governments have announced a £25m upgrade to the machines that detected gravitational waves three and a half years ago. The improved instruments will be able to detect collisions of black holes nearly…

Gravitational waves will settle cosmic conundrum – Phys.org
Science and Nature

Gravitational waves will settle cosmic conundrum – Phys.org

Home Physics General Physics February 14, 2019 February 14, 2019, Simons Foundation When neutron stars collide, they emit light and gravitational waves, as seen in this artist’s illustration. By comparing the timing of the two emissions from many different neutron star mergers, researchers can measure how fast the universe is expanding. Credit: R. Hurt/Caltech-JPL Measurements…

Scientists Reveal Possibility of Recent Underground Volcanism on Mars – SciTechDaily
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Scientists Reveal Possibility of Recent Underground Volcanism on Mars – SciTechDaily

The Martian South Pole. A new study in Geophysical Research Letters argues there needs to be an underground source of heat for liquid water to exist underneath the polar ice cap. Credit: NASA. A study published last year in the journal Science suggested liquid water is present beneath the south polar ice cap of Mars.…

To Fight Antibiotic Resistance, Scientists Look To Microbes In Insects : Shots – Health News – NPR
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To Fight Antibiotic Resistance, Scientists Look To Microbes In Insects : Shots – Health News – NPR

Scientists have isolated a molecule with disease-fighting potential in a microbe living on a type of fungus-farming ant (genus Cyphomyrmex). The microbe kills off other hostile microbes attacking the ants’ fungus, a food source. Courtesy of Alexander Wild/University of Wisconsin hide caption toggle caption Courtesy of Alexander Wild/University of Wisconsin Scientists have isolated a molecule…

NASA about to pull plug on Mars rover, silent for 8 months – KSL.com
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NASA about to pull plug on Mars rover, silent for 8 months – KSL.com

CAPE CANAVERAL, Fla. (AP) — NASA is trying one last time to contact its record-setting Mars rover Opportunity, before calling it quits.The rover has been silent for eight months, victim of one of the most intense dust storms in decades. Thick dust darkened the sky last summer and, for months, blocked sunlight from the spacecraft’s…

Scientists Find Possible Second Subglacial Impact Crater in Northwest Greenland | Geoscience – Sci-News.com
Science and Nature

Scientists Find Possible Second Subglacial Impact Crater in Northwest Greenland | Geoscience – Sci-News.com

Following the discovery of the 19.2-mile (31 km) wide Hiawatha impact crater beneath the northwest margin of the Greenland Ice Sheet, Dr. Joe MacGregor of NASA’s Goddard Space Flight Center and colleagues explored satellite and aerogeophysical data in search of additional such craters and found a possible second impact crater that is 22.7 miles (36.5…

Earth Is ‘Missing’ at Least 20 Ft of Sea Level Rise. Antarctica Could Be The Time Bomb – ScienceAlert
Science and Nature

Earth Is ‘Missing’ at Least 20 Ft of Sea Level Rise. Antarctica Could Be The Time Bomb – ScienceAlert

CHRIS MOONEY, THE WASHINGTON POST 12 FEB 2019 Some 115,000 years ago, Homo sapiens were still living in bands of hunter gatherers, largely confined to Africa. We still shared the globe with the Neanderthals, although it’s not clear we had met them yet. And though these various hominids didn’t know it, the Earth was coming…

Massive insect decline could have ‘catastrophic’ environmental impact, study says – CNN
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Massive insect decline could have ‘catastrophic’ environmental impact, study says – CNN

(CNN)Insect populations are declining precipitously worldwide due to pesticide use and other factors, with a potentially “catastrophic” effect on the planet, a study has warned.More than 40% of insect species could become extinct in the next few decades, according to the “Worldwide decline of the entomofauna: A review of its drivers” report, published in the…

Walter H. Munk, Scientist-Explorer Who Illuminated the Deep, Dies at 101 – The New York Times
Science and Nature

Walter H. Munk, Scientist-Explorer Who Illuminated the Deep, Dies at 101 – The New York Times

ImageWalter Munk in 1963 with a tide capsule. The capsule was dropped to the seafloor to measure deep-sea tides before such measurements became feasible by satellite.CreditCreditAnsel Adams, University of CaliforniaWalter H. Munk, one of the foremost oceanographers of the 20th century, who sent pulses of sound through the vast oceans — probably startling a few…