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Tuesday, July 5, 2016

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NASA's Juno spacecraft loops into orbit around Jupiter

By Irene Klotz CAPE CANAVERAL, Fla. (Reuters) - NASA'S Juno spacecraft capped a five-year journey to Jupiter on Monday with a do-or-die engine burn that looped it into orbit to probe the origins of the biggest planet in the solar system and how it impacted the rise of life on Earth, the U.S. space agency said. Juno fired its main engine for 35 minutes beginning at 11:18 a.m. EDT/0318 Tuesday GMT, slowing the spacecraft so it could be captured by the planet's gravity. Once in position to begin its 20-month science mission, Juno will fly in egg-shaped orbits, each one lasting 14 days, to learn if Jupiter has a dense core beneath its clouds and map its massive magnetic field. The probe also will hunt for water in Jupiter's thick atmosphere, a key yardstick for figuring out how far away from the sun the gas giant formed.

Freeloading Butterflies Get Away with Theft

A bizarre Amazonian butterfly is the ultimate freeloader, researchers say. The butterfly species steals and eats gooey bamboo secretions from its ant neighbors, in a relationship known as kleptoparasitism, new research has found. Pomerantz and his colleagues have now captured images of the odd behavior — the first time that kleptoparasitism has been documented between adult butterflies and ants.

Tallest Mountain in US Arctic Crowned

Though Denali is the uncontested highest peak in North America — with a summit elevation of 20,310 feet (6,190 meters) — there has been a more than 50-year debate over which U.S. mountain can be crowned the tallest beyond the Arctic Circle. U.S. Geological Survey topographic maps from the 1950s show either Mount Chamberlin or Mount Isto as the highest mountain in the eastern Alaska Arctic region. At 8,975.1 feet (2,735.6 m), Mount Isto is the tallest peak in the U.S. Arctic, and Mount Chamberlin (at 8,898.6 feet, or 2712.3 m) is only the third highest.

Revenge Is Bittersweet, Research Finds

Revenge is a dish best served cold. The culture is swimming with depictions of revenge: Sometimes it's deeply satisfying, sometimes it injures the avenger, and sometimes it's a little bit of both. "We show that people express both positive and negative feelings about revenge, such that revenge isn't bitter, nor sweet, but both," Fade Eadeh, a doctoral candidate in psychological and brain sciences at Washington University in St. Louis, said in a statement.

Tomb with a View: Ancient Burial Sites Served as 'Telescopes'

And the scientists are looking especially closely at passage graves, a type of tomb with a large chamber accessed through a long and narrow entry tunnel. This type of structure could have greatly enhanced views of faint stars as they rose on the dawn horizon. The findings were presented June 29 at the Royal Astronomical Society's (RAS) National Astronomy Meeting 2016 in Nottingham, in the United Kingdom.

Female Komodo Dragon Saved After Her Eggs Burst

A complex surgery has saved the life of a captive Komodo dragon at the Denver Zoo. Anika, a 6-year-old female Komodo dragon, developed dystocia, a condition in which reptiles are unable to deposit their eggs. Zoo staff first noticed that Anika's abdomen was swollen and that she'd lost weight, even though her appetite (and eating) had increased dramatically.

Your Brainwaves May Fall into a 'Texting Rhythm'

These days, it seems like smartphones are an integral part of people's daily lives — and a new study suggests that texting on these devices may actually change certain processes in the brain. They were surprised that the rhythm could be reproduced in different patients in the study, said Dr. William Tatum, a neurologist at the Mayo Clinic College of Medicine in Jacksonville, Florida, and the lead author of the study. The discovery of new brain-wave patterns is rare — it was more common in the years following the late 1920s, when the electroencephalogram (EEG) device, which shows brain activity, was invented, he said.

Science Finds a Way to Overcome Life's Regrets

The people in the study who practiced self-compassion, or being kind to oneself, were more likely to overcome regrets than the people who did not do so, according to the study, published in February in the journal Personality and Social Psychology Bulletin. Although regrets are often painful, previous studies have suggested that some people can overcome them and feel stronger afterward, said Jia Wei Zhang, a graduate student in psychology at the University of California, Berkeley. The researchers wanted to better understand why some people report feeling improvement from regrets but others don't, Zhang said.

Satellite Spies International Space Station Orbiting Earth

A satellite captured a bird?s-eye view of the International Space Station (ISS) orbiting Earth, revealing spectacular images just released by NASA. With the Space Station orbiting at only 250 miles (400 km) above the surface, the Landsat 8's Operational Land Imager (OLI) gets a unique view of the ISS when the two orbits align. On June 19, 2016, the Landsat 8's OLI captured images of the ISS over the state of Odisha in eastern India.

Court rules against White House science office in email case

WASHINGTON (AP) — A federal appeals court says work-related emails on a private account used by the White House's top science adviser are subject to the Freedom of Information Act.

New Robo-Salamander Can Really Move

With the help of X-ray videos, scientists have developed a new robot that mimics the way salamanders walk and swim. In general, scientists investigate animal locomotion for insights that could, among other things, help people recover from devastating losses of mobility, said study senior author Auke Ijspeert, a bioroboticist at the Swiss Federal Institute of Technology in Lausanne. Increasingly, scientists are creating robot copies of animals to perform such investigations of animal locomotion.

Physics prepares to feast on collider data, seeking dark universe

By Tom Miles GENEVA (Reuters) - Scientists at Europe's physics research center CERN are preparing to unwrap the biggest trove of data yet from the Large Hadron Collider (LHC), three years after they confirmed the existence of the elusive Higgs boson. "In the life of accelerator physics there are few moments like the one we are living through," said Tiziano Camporesi, leader of the CMS experiment at CERN. "This is the time when the probability of finding something new is highest." The Higgs boson, whose discovery secured the Nobel prize for physics in 2013, answered fundamental questions about how elementary matter attained mass.

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Monday, July 4, 2016

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NASA's Juno spacecraft poised for one-shot try to orbit Jupiter

By Irene Klotz CAPE CANAVERAL, Fla. (Reuters) - A NASA spacecraft was poised for a one-shot attempt to slip into Jupiter's orbit on Monday for the start of a 20-month-long dance around the solar system's largest planet to learn how and where it formed. Flight controllers at NASA's Jet Propulsion Laboratory in Pasadena, California, were preparing for a long night as the Juno probe streaked closer toward Jupiter at 200 times the speed of sound in the empty vacuum of space. Confirmation of whether Juno, the only solar-powered spacecraft ever dispatched to the outer solar system, had successfully placed itself into polar orbit around Jupiter was not expected until 11:53 p.m. EDT on Monday (0353 GMT on Tuesday).

Fastest-Ever Spacecraft to Arrive at Jupiter Tonight

NASA's Juno probe will attempt to slip into orbit around Jupiter tonight (July 4), shortly after becoming the fastest object ever made by human hands. As Juno nears Jupiter tonight, the giant planet's powerful gravity will accelerate the spacecraft to an estimated top speed of about 165,000 mph (265,000 km/h) relative to Earth, mission team members said. "I don't think we've had any human[-made] object that's moved that fast, that's left the Earth," Juno principal investigator Scott Bolton, of the Southwest Research Institute in San Antonio, said during a news conference last week.

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Sunday, July 3, 2016

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60-Year-Old Woman Wants to Get Pregnant: What Are the Risks?

A 60-year-old women in England whose daughter died wants to use her eggs to get pregnant, and give birth to her own grandchild, but would such a pregnancy come with risks? In general, older women are at higher risk for complications during pregnancy compared with younger women.

E.T. phone home: China eyes hunt for alien life with giant telescope

China on Sunday hoisted the final piece into position on what will be the world's largest radio telescope, which it will use to explore space and help in the hunt for extraterrestrial life, state media said. Scientists will now start debugging and trials of the telescope, Zheng Xiaonian, deputy head of the National Astronomical Observation under the Chinese Academy of Sciences, which built the telescope, told the official Xinhua news agency. "The project has the potential to search for more strange objects to better understand the origin of the universe and boost the global hunt for extraterrestrial life," the report paraphrased Zheng as saying.

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Friday, July 1, 2016

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NASA space probe to lift the veil on Jupiter

By Irene Klotz CAPE CANAVERAL, Fla. (Reuters) - NASA's Juno spacecraft hurtled closer toward Jupiter on Friday headed for a July 4 leap into polar orbit around the solar system's largest planet to analyze how it formed and helped set the stage for life on Earth. During a 20-month study, Juno is expected to circle the gas giant in 37 egg-shaped orbits to measure microwaves radiating from inside the planet's thick atmosphere, map its massive magnetic field and conduct other experiments. Scientists are particularly keen to learn how much water Jupiter contains, a key to unlocking the origins of the largest celestial body in the solar system after the sun. Jupiter currently orbits the sun at a distance about five times farther away than Earth, but it may have formed in a different location and migrated, gravitationally elbowing aside other planets along the way.

Half of Adélie Penguins Could Be Wiped Out by Global Warming

Global warming may cause massive drops in the population of Adélie penguins in Antarctica, new climate data suggests. The tuxedo-clad birds breed on rocky, ice-free ground, and as glaciers receded over millions of years, Adélie penguins have reclaimed once icebound land for breeding. "It is only in recent decades that we know Adélie penguins population declines are associated with warming, which suggests that many regions of Antarctica have warmed too much and that further warming is no longer positive for the species," study co-author Megan Cimino, a researcher in the college of earth, ocean and the environment at the University of Delaware, said in a statement.

Polly Says What?! Should Parrots Testify at Murder Trials?

Bird scientists are skeptical whether Bud, an African grey parrot who allegedly witnessed a murder in 2015 in Michigan, can give reliable testimony or spoken evidence at a court trial. That's not because African grey parrots aren't intelligent — the birds can be trained to do simple math, speak with enormous vocabularies and demonstrate impressive inferential reasoning. Rather, it's unclear whether Bud is repeating a conversation from the murder itself, or whether he heard it on TV, the radio or from another time in his life, experts told Live Science.

Ancient Shrine That May Hold Buddha's Skull Bone Found in Crypt

Archaeologists have discovered what may be a skull bone from the revered Buddha, Siddhartha Gautama. The bone was hidden inside a model of a stupa, or a Buddhist shrine used for meditation. The research team found the 1,000-year-old model within a stone chest in a crypt beneath a Buddhist temple in Nanjing, China.

Newfound Human Species Suggests Africa Was Evolutionary Melting Pot

The most recently discovered extinct human species may have lived less than 1 million years ago, researchers have discovered. This finding suggests that a diverse range of human species might have lived at the same time in Africa, just as they might have in Asia, researchers said. In 2015, scientists reported South African fossils of a hitherto-unknown relative of modern humans that possessed an unusual mix of features, such as feet adapted for a life on the ground but hands suited for a life in the trees.

Scientists hope new shark cam gives insight to deep dives

MONTEREY, Calif. (AP) — Researchers are developing a one-of-a-kind camera to mount on great white sharks in an effort to discover why the fish travel each year to a spot in the Pacific Ocean nicknamed the "White Shark Cafe."

Antarctic Ozone Hole Shows 1st Signs of Healing

More than 30 years after scientists first spotted a hole in the atmosphere's protective ozone layer over the South Pole, they are seeing the "first fingerprints of healing," researchers reported today (June 30). "But October is also subject to the slings and arrows of other things that vary, like slight changes in meteorology.

Dog 'Kisses' Give Woman Severe Infection

A woman in the United Kingdom developed a potentially life-threatening infection that had an unusual cause: "kisses" from her dog.

'Breast Cancer Gene' BRCA1 Linked to Aggressive Uterine Cancer

Mutations in women's BRCA genes, which are linked to both breast cancer and ovarian cancer, may also increase their risk of developing a particularly deadly form of uterine cancer, a new study finds. The BRCA1 and BRCA2 genes are sometimes referred to as the "breast cancer genes" because women who have a mutation in one or both of these genes face a much greater risk of developing breast and/or ovarian cancer than women without mutations in these genes. But previous studies have also suggested that women with a BRCA1 or BRCA2 mutation may also be more likely to develop a type of uterine cancer called uterine serous carcinoma, said Dr. Noah Kauff, director of clinical cancer genetics at the Duke Cancer Institute in North Carolina and the senior author of the new study.

For Kids with Eczema, 'Soak and Smear'

To bathe or not to bathe: that has been the question for parents of children with eczema. Some parents think that frequent bathing ultimately will dry out the skin and make eczema symptoms worse. Now, a new review of studies on bathing and eczema attempts to provide some clarity.

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