 Ancient Mars River May Have Flowed into Huge Ocean  | Scientists have spotted more evidence that an enormous ocean on Mars covered much of the planet's surface billions of years ago.
| Read More » Space Cloud Ripped Apart by Milky Way's Giant Black Hole  | Astronomers have spied a huge gas cloud being pulled like taffy around the supermassive black hole at the heart of the Milky Way.
| Read More » 'Intelligent' surgical knife can sniff out cancer tissue  | By Ben Hirschler LONDON (Reuters) - Scientists have created an "intelligent" surgical knife that can detect in seconds whether tissue being cut is cancerous, promising more effective and accurate surgery in future. The device, built by researchers at London's Imperial College, could allow doctors to cut back on additional operations to remove further pieces of cancerous tumors. The technology, effectively merging an electrosurgical knife that cuts through tissue using heat with a mass spectrometer for chemical analysis, has also been shown to be able to distinguish beef from horsemeat. ...
| Read More » Royal Baby Bonanza: 7 Ways the Prince or Princess Will Be Celebrated With the entire world anxiously counting down to the royal baby's birth, Kate Middleton and Prince William's little one just might be the most famous (unborn) baby in the world. Read More » 'Longhorn' Dinosaur Fossil Discovered in Utah  | The fossilized remains of a newly identified dinosaur with horns so long they would put Triceratops to shame has been discovered in the Utah desert.
| Read More » Reality Check: Is Our Universe Real? Perhaps our human senses are deceiving us — maybe existence is an illusion, and reality isn't real. Read More » NASA aborts spacewalk after leak into astronaut's helmet  | By Irene Klotz CAPE CANAVERAL, Florida (Reuters) - A spacewalk to work on the International Space Station ended abruptly on Tuesday when a water-like liquid started building up inside an Italian astronaut's helmet, NASA officials said. U.S. astronaut Chris Cassidy and Italy's Luca Parmitano were less than an hour into a planned six-hour outing when Parmitano reported what seemed to be water inside his helmet. "My head is really wet and I have a feeling it's increasing," Parmitano radioed to flight controllers in Houston. ...
| Read More » Warm and Buttery: Melt Speeds Greenland's Ice Flow  | Greenland's massive ice sheet is accelerating its slide toward the ocean because bigger surface melts in recent years are softening the interior of the ice like a stick of butter, a new study finds.
| Read More » How 'Brown Oceans' Fuel Hurricanes  | Hurricanes and tropical storms typically gather strength while moving over warm oceans, where the energy released by evaporating water fuels these storms' high winds. These storms usually weaken rapidly as they move over land and are cut off from their fuel source.
| Read More » Huge Plant-Eating Dinosaur Never Ran Out of Teeth  | Some plant-eating dinosaurs grew new teeth every couple of months, with some of the largest herbivores developing a replacement tooth every 35 days, to keep their chompers from getting too worn down on all that vegetation, new research finds.
| Read More » Advanced Prostate Cancer Patients May Live Longer with New Drug Men with advanced prostate cancer may live longer after receiving a new type of targeted radiation treatment, a new study suggests. Read More » The Sad Truth About Boy Scouts and Childhood Obesity (Op-Ed)  | Dr. Mitchell Roslin ischief of obesity surgery at Lenox Hill Hospital in New York. He holds several patents for thetreatment of obesity and designed a method for treating relapse after gastric bypass surgery. Roslin has expertise in laparoscopic obesity surgery, duodenal switch surgery and revisional bariatric surgery. He contributed this article to LiveScience's Expert Voices: Op-Ed & Insights .
| Read More » Acid Test: Rising CO2 Levels Killing Ocean Life (Op-Ed)  | Matt Huelsenbeck is a marine scientist for the climate and energy campaign at Oceana. This article was adapted from one that first appeared on The Beacon . Huelsenbeck contributed this article to LiveScience's Expert Voices: Op-Ed & Insights .
| Read More » Comet of the Century? Comet ISON Faces Risky Road  | About 10,000 years ago, Comet ISON left our solar system's distant shell, a region known as the Oort cloud, and began streaking toward the sun. This November, the icy wanderer will reach the climax of its journey, potentially providing a stunning skywatching show here on Earth.
| Read More » Scientists report newly discovered horned dinosaur unearthed in Utah By Laura Zuckerman (Reuters) - A big-nosed dinosaur that may have used its impressive horns as a mate magnet and to ward off competitors has been unearthed in a fossil-rich deposit in southern Utah, scientists said on Wednesday. The novel species, Nasutoceratops or "big-nose horned face," is the only known member of a group of dinosaurs thought to have lived 76 million years ago on a land mass in Western North America isolated by an ancient seaway, said Scott Sampson, one of the paleontologists who discovered the extinct reptile. ... Read More » Insight - Science for hire:exposes disclosure deficit  | By Sharon Begley NEW YORK (Reuters) - By 2012, Eastman Chemical seemed to be perfectly positioned when it came to producing plastic for drinking bottles. Concerns about a widely used chemical called bisphenol A (BPA) had become so great that Walmart stopped selling plastic baby bottles and children's sippy cups made with it and consumer groups were clamoring for regulators to ban it. Medical societies were warning that BPA's similarity to estrogens could disrupt the human hormone system and pose health risks, especially to fetuses and newborns. ...
| Read More » Insight - Science for hire: Trial over plastic exposes disclosure deficit By Sharon Begley NEW YORK (Reuters) - By 2012, Eastman Chemical seemed to be perfectly positioned when it came to producing plastic for drinking bottles. Concerns about a widely used chemical called bisphenol A (BPA) had become so great that Walmart stopped selling plastic baby bottles and children's sippy cups made with it and consumer groups were clamouring for regulators to ban it. Medical societies were warning that BPA's similarity to estrogens could disrupt the human hormone system and pose health risks, especially to foetuses and newborns. ... Read More » Job Seekers Tap Into 'Hidden' Job Market You've heard about trendy bars with unmarked doors or red-hot restaurants with unlisted phone numbers? Now there's a hidden job market, too. Read More » Racial Gap in Life Expectancy Persists in US Life expectancy for African Americans has historically been lower than that of whites in the United States, and while the gap is closing, disparities remain, according to a new report. Read More » Space Gets Slimed: Tiny Satellite Will Grow Mold In Orbit  | It's not quite the slimy creatures from the movie "Ghostbusters," but it's close.
| Read More » 3D-Printed Rocket Engine Part Passes Key NASA Test  | A 3D-printed rocket engine injector has passed a major NASA test, potentially heralding a new age of propulsion-system manufacturing, space agency officials say.
| Read More » Cheese Sculptures & Bacon Envelopes: 10 Weird Businesses  | People find all kind of weird ways to make money. From carving giant hunks of cheddar cheese to making bacon-flavored...well, everything. Check out these 10 weird businesses that are finding startup success.
| Read More » Burst Appendix Linked to Ozone Air Pollution  | High levels of ozone — a major component of smog — may increase the risk of a burst appendix, according to a new study from Canada.
| Read More » Honeycombs' Surprising Secret Revealed  | The perfect hexagonal shape of honeycomb cells — once thought to be an incredible feat of math-savvy insects — has now been explained by simple mechanics.
| Read More » Weird Neutrinos Elude Scientists Yet Again  | Though they've been looking for over a year, scientists have found no trace of an elusive interaction among elementary particles called neutrinos.
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