Scientists' evidence for man-made global warming hits 'gold standard'
2019-02-25 18:33:18 UTC
OSLO (Reuters) - Evidence for man-made global warming has reached a “gold standard” level of certainty, adding pressure for cuts in greenhouse gases to limit rising temperatures, scientists said on Monday.
“Humanity cannot afford to ignore such clear signals,” the U.S.-led team wrote in the journal Nature Climate Change of satellite measurements of rising temperatures over the past 40 years.
They said confidence that human activities were raising the heat at the Earth’s surface had reached a “five-sigma” level, a statistical gauge meaning there is only a one-in-a-million chance that the signal would appear if there was no warming.
China's Chang'e-4 Probe Touched Down on Far Side of Moon
2019-01-06 05:35:05 UTC
China's Chang'e-4 probe touched down on the far side of the moon, state broadcaster CCTV reported on Thursday morning.
The successful "soft landing" marks a groundbreaking development in space exploration, being the first time that a spacecraft has landed on the side of the moon that faces away from Earth.
Chang'e-4, which is named after the Chinese goddess of the moon, entered its planned orbit to allow the landing on Sunday.
It landed in the Von Karman crater, which is in the lunar South Pole's Aitken Basin, at about 0226 UTC.
<strong>Lunar surface explorer</strong>
Chang'e-4 is set to release a rover to map contours and surface...
Catastrophic Effects of Climate Change
2018-11-25 02:46:14 UTC
(Reuters) - Climate change will cost the U.S. economy hundreds of billions of dollars by the end of the century, hitting everything from health to infrastructure, according to a government report issued on Friday that the White House called inaccurate.
The congressionally mandated report, written with the help of more than a dozen U.S. government agencies and departments, outlined the projected impact of global warming on every corner of American society in a dire warning that is at odds with the Trump administration’s pro-fossil-fuels agenda.
“With continued growth in emissions at historic rates, annual losses in some economic secto...
Scientists show how toxoplasmosis parasite hides away in the brain
2018-11-13 17:21:30 UTC
<h3>Scientists have shown how the toxoplasmosis parasite hides away in the brain, altering synapses and potentially causing depression, schizophrenia and autism.</h3>
Mice infected with toxoplasmosis parasites behave strangely: They lose their natural fear of cats.
Presented with the smell of cat urine, they even seem attracted to the deadly predator, scientists have found. Toxoplasmosis is caused by the pathogen Toxoplasma gondii, a unicellular parasite that occurs worldwide. It affects birds and mammals, including humans. However, it can reproduce only in the digestive system of a cat.
<strong>From cat poo to car crashes</strong...
Parkinson's may get its start not in brain but in appendix
2018-10-31 21:29:40 UTC
WASHINGTON (AP) — Scientists have found a new clue that Parkinson’s disease may get its start not in the brain but in the gut — maybe in the appendix.
People who had their appendix removed early in life had a lower risk of getting the tremor-inducing brain disease decades later, researchers reported Wednesday.
Why? A peek at surgically removed appendix tissue shows this tiny organ, often considered useless, seems to be a storage depot for an abnormal protein — one that, if it somehow makes its way into the brain, becomes a hallmark of Parkinson’s.
The big surprise, according to studies published in the journal Science Translationa...
Laser Trio Win Nobel Prize In Physics
2018-10-02 18:38:17 UTC
STOCKHOLM/LONDON (Reuters) - A trio of American, French and Canadian scientists won the 2018 Nobel Prize for Physics on Tuesday for breakthroughs in laser technology that have turned light beams into precision tools for everything from eye surgery to micro-machining.
They include the first female physics prize winner in 55 years.
Canada’s Donna Strickland, of the University of Waterloo, becomes only the third woman to win a Nobel for physics, after Marie Curie in 1903 and Maria Goeppert-Mayer in 1963.
Milk and mushrooms may prevent metabolic diseases
2018-09-26 21:37:16 UTC
<blockquote>Recent research conducted at Pennsylvania State University in the US studied the effect of mushrooms on glucose production in the body. Mushrooms are a probiotic food, which means they positively influence the bacteria in the gut.
In a study with mice, researchers discovered that the regular consumption of white button mushrooms boosted the growth of certain bacteria which produce substances that influence glucose production.
The researchers believe that white button mushrooms may be especially helpful for people with diabetes, due to the fungi's role in glucose production.
Like mushrooms, milk also seems to regulate b...
Green crabs from Nova Scotia threaten coastal ecosystem
2018-09-19 05:21:29 UTC
BIDDEFORD, Maine (AP) — Canadians are known as friendly folks, but these crabby brutes migrating from Canadian waters are better suited for the hockey rink.
Green crabs from Nova Scotia are the same species as their cousins that already inhabit Maine waters, but are ornerier and angrier, threatening to accelerate harm to the coastal ecosystem by gobbling up soft-shell clams and destroying native eel grass, a researcher said.
The docile green crabs shrink from a threat, while the newcomers are more apt to wave their pincers and charge.
“What we’re seeing is this insane level of aggressiveness,” said Markus Frederich, a professor at...
Florence: US Facing the Challenges of Climate Change
2018-09-12 00:11:05 UTC
Hurricane Florence is moving relentlessly toward the Southeastern U.S. It's a large, powerful cyclone that will likely bring storm surge and high winds to coastal communities.
But climate scientists say one of the biggest threats posed by Florence is rain.
"Freshwater flooding poses the greatest risk to life," explains James Kossin, an atmospheric scientist for the National Oceanic and Atmospheric Administration and the University of Wisconsin, Madison. And Florence could cause extensive freshwater flooding for two reasons.
First, Florence is moving slowly and could all but stop when it reaches land.
"The storm could be over No...
Trump’s ‘unmitigated crap’ on California wildfires
2018-08-07 21:23:33 UTC
U.S. President Donald Trump has weighed in on the California wildfires. But it wasn’t to express condolences for the victims or to praise the incredible bravery of firefighters — it was to try to score political points.
And he did so by badly twisting the science of how wildfires work. In a now-deleted tweet, Trump blamed “bad environmental laws” for “diverting” water into the Pacific Ocean.
Scientists mock Trump’s tweet on wildfires as ‘comedically ill-informed’ and ‘unmitigated crap.’
His climate denial is "a crime against the planet" warns climatologist.
Detection of water on Mars by italian scientists
2018-07-25 22:26:02 UTC
WASHINGTON (Reuters) - Using a radar instrument on an orbiting spacecraft, scientists have spotted what they said on Wednesday appears to be a sizable salt-laden lake under ice on the southern polar plain of Mars, a body of water they called a possible habitat for microbial life.
The reservoir they detected — roughly 12 miles (20 km) in diameter, shaped like a rounded triangle and located about a mile (1.5 km) beneath the ice surface — represents the first stable body of liquid water ever found on Mars.
<blockquote><img alt="Detection_of_water_on_mars_by_italian_scientists" src="/system/images/16480/original/Detection_of_water_on_Mar...
Mars: Earth’s neighbor may have harbored life
2018-06-07 19:30:00 UTC
WASHINGTON (Reuters) - A NASA rover has detected a bonanza of organic compounds on the surface of Mars and seasonal fluctuations of atmospheric methane in findings released on Thursday that mark some of the strongest evidence ever that Earth’s neighbor may have harbored life.
But National Aeronautics and Space Administration scientists emphasized there could be nonbiological explanations for both discoveries made by the Curiosity rover at a site called Gale crater, leaving the issue of Martian life a tantalizing but unanswered question.
Three different types of organic molecules were discovered when the rover dug just 2 inches (5 cm)...
Hawaii’s Kilauea volcano erupted, shoots lava into sky
2018-05-04 06:00:22 UTC
HONOLULU (AP) — Hawaii’s Kilauea volcano erupted Thursday, sending lava shooting into the air in a residential neighborhood and prompting mandatory evacuation orders for nearby homes.
Hawaii County said steam and lava poured out of a crack in Leilani Estates, which is near the town of Pahoa on the Big Island.
Footage shown on local television showed lava spurting into the sky from a crack in a road. Aerial drone footage showed a line of lava snaking through a forest.
Lava fountains were shooting 150 feet (46 meters) in the air, and molten lava spread out over an area about 200 yards (183 meters) wide behind one house in Leilani Es...
Stephen Hawking Biography
2018-03-14 09:29:46 UTC
Stephen William Hawking was born on 8th January 1942 (exactly 300 years after the death of Galileo) in Oxford, England. His parents' house was in north London but during the second world war Oxford was considered a safer place to have babies.
When he was eight his family moved to St. Albans, a town about 20 miles north of London. At the age of eleven, Stephen went to St. Albans School and then on to University College, Oxford (1952); his father's old college. Stephen wanted to study mathematics although his father would have preferred medicine.
<blockquote><img alt="Stephen_hawking_biography" src="/system/images/15503/original/Stephe...
A Loss for All Humanity: Physicist Stephen Hawking Died
2018-03-14 08:27:15 UTC
British physicist Stephen Hawking has died peacefully in his sleep at the age of 76, according to a family spokesperson. Known around the globe, he worked to make complicated scientific fields accessible to the public.
Stephen Hawking, a renowned mathematician and physicist has died at the age of 76.
"We are deeply saddened that our beloved father passed away today. He was a great scientist and an extraordinary man whose work and legacy will live on for many years. His courage and persistence with his brilliance and humor inspired people across the world," his three children said in a statement.
Hawking died in his sle...
Worrying sign of climate change: Arctic warmer than Europe
2018-02-28 09:26:45 UTC
As frigid air sweeps across Europe, the Arctic itself is seeing an unprecedented warm spell. What's going on and does it relate to global warming?
"Freezing cold 'Siberian Express' is roaring towards Britain," screamed the front page of the Daily Express newspaper last Friday as a cold front, the so-called "Beast from the East," battered its way west.
<blockquote>By the weekend, snow and temperatures of minus 5 degrees Celsius (23 degrees Fahrenheit) had hit Britain, while cities like Rome in southern Italy had transformed into a winter wonderland. This came soon after Moscow experienced a record whiteout during the "snowfall of the ...
Study: Dying Polar Bear Connected to Global Warming
2018-02-04 05:42:12 UTC
Millions have seen the heart-wrenching video of a polar bear clinging to life, its white hair limply covering its thin, bony frame. Shot by Paul Nicklen and Cristina Mittermeier of the nonprofit group Sea Legacy, and published on National Geographic in early December, the video ignited a firestorm of debate about what scientists know, and don’t know, about the impacts of global warming on polar bears.
Without examining the bear in the video—thought to have died—it’s impossible to know for sure what ailed that individual, but now scientists have published new findings that shed more light on the risk to the species overall.
Homo sapiens trekked out of Africa far earlier than previously known
2018-01-25 21:32:55 UTC
Homo sapiens were wandering out of Africa at least 177,000 years ago — some 60,000 years earlier than previously thought.
The new migration date comes after ancient stone tools and part of a fossilised Homo sapiens jaw bone with teeth were discovered in a cave in northern Israel.
Until now, the oldest evidence for modern humans outside Africa were only 90,000 to 120,000 years old.
Homo sapiens first appeared in Africa, with the earliest-known fossils roughly 300,000 years old. A key milestone was when our species first ventured out of Africa en route to populating the far corners of the globe.
Doctors can detect deadliest cancers through blood test
2018-01-21 17:59:46 UTC
The future isn't far off, according to US researchers: doctors will soon be able to detect cancer and locate tumor cells just by examining one blood sample. But is this new screening method as good as it sounds?
<blockquote>Cancer of the ovaries, liver, stomach, pancreas, esophagus, colon and breast - one single blood test, experts hope, could soon be enough to detect a tumor wherever it may be.
Perhaps even more impressive: the test looks for cancer in its early stages, even before a patient has shown any symptoms, and before the tumor has had a chance to spread. Scientists hope that this will help to avoid cumbersome forms of trea...
Supermassive black hole burped out material twice after colliding with nearby galaxy
2018-01-12 20:07:51 UTC
Using two telescopes, astronomers have found a black hole at the centre of a galaxy 800 million light years away that has spewed material into space not once, but twice.
Most galaxies have a supermassive black hole at their centres, which consumes anything that gets too close. And while we tend to think of nothing escaping a black hole's fierce grasp, when they devour material, some of it is ejected into space in the form of high-energy particles.
In order to see the two events, astronomers used data from ground-based telescopes as well as the Hubble Space Telescope and the Chandra X-Ray Observatory.
Optical data from Hubble and t...
Scientists Developed a Living Organism that Incorporates Artificial DNA
2017-11-30 21:31:43 UTC
CHICAGO (Reuters) - In a major step toward creating artificial life, U.S. researchers have developed a living organism that incorporates both natural and artificial DNA and is capable of creating entirely new, synthetic proteins.
The work, published in the journal Nature, brings scientists closer to the development of designer proteins made to order in a laboratory.
<img alt="Scientists_developed_a_living_organism_that_incorporates_artificial_dna" src="/system/images/14553/large/Scientists_Developed_a_Living_Organism_that_Incorporates_Artificial_DNA.jpg?1512077472" />
Previous work by Floyd Romesberg, a chemical biologist at the S...
Science: Sheep Can Recognize Human Faces
2017-11-09 06:20:01 UTC
LONDON (Reuters) - Sheep have been trained to recognize the faces of celebrities, including former U.S. President Barack Obama, by University of Cambridge scientists who hope it may help with understanding neurodegenerative diseases.
In a specially equipped pen, sheep were shown pictures of people on two computer screens, on one side would be an unknown person and on the other would be one of four celebrities.
The animal would receive a reward of food for choosing the photograph of the celebrity by breaking an infrared beam near the screen displaying it. If they chose the wrong photograph, a buzzer would sound and they would receive ...
Scientists Detect Light From Gravitational Wave
2017-10-16 19:27:03 UTC
CAMBRIDGE, Mass. (Reuters) - When neutron stars collide: Scientists in Europe and the U.S. have for the first time detected gravitational waves, the ripples in space and time predicted by Albert Einstein, at the same time as light from the same cosmic event, according to research published on Monday.
The waves, caused by the collision of two neutron stars some 130 million years ago, were first detected in August by the Laser Interferometer Gravitational-Wave Observatories, known as LIGO, in Washington state and Louisiana as well as at a third detector, named Virgo, in Italy.
<blockquote>Two seconds later, observatories across earth a...
Einstein's gravitational waves win Nobel Prize in physics
2017-10-03 16:50:23 UTC
STOCKHOLM/LONDON (Reuters) - Three U.S. scientists won the 2017 Nobel prize for physics on Tuesday for opening up a new era of astronomy by detecting gravitational waves, ripples in space and time foreseen by Albert Einstein a century ago.
The work of Rainer Weiss, Barry Barish and Kip Thorne crowned half a century of experimental efforts by scientists and engineers.
Measuring gravitational waves offers a new way to observe the cosmos, helping scientists explore the nature of mysterious objects including black holes and neutron stars. It may also provide insight into the universe’s very earliest moments.
The first detection of the...
Florence, a 4.4-km-wide asteroid, passing Earth today
2017-09-01 07:41:42 UTC
Asteroid 3122, named after Florence Nightingale, will reach its peak brightness tonight (Thursday August 31 into Friday September 1).
But the asteroid will actually be closest to Earth at 8:05 a.m. ET (1pm BST) tomorrow (Friday September 1), according to NASA.
The asteroid will come as close as 4.4 million miles (7 million km) to Earth but NASA has confirmed that it will not hit our planet.
Paul Chodas, manager of NASA’s Center for Near-Earth Object Studies, said: “Florence is the largest asteroid to pass by our planet this close since the NASA program to detect and track near-Earth asteroids began.”
The asteroid, which is ...