Yerevan, 22.October.2018,
--
:
--
,

Science

UK astronaut Tim Peake prepares for return to Earth
UK astronaut Tim Peake is preparing to return to Earth after an historic six-month mission to the space station. During his stay, he made the first spacewalk by a UK astronaut, remotely steered a robot on Earth and ran the London Marathon. A Soyuz capsule carrying Major Peake and two other crew members will land in Kazakhstan at 10:15 BST on Saturday. He is the first person to visit space under the UK banner since Helen Sharman in 1991. Speaking in his last live link-up from space, Major Pea...
The story of Eve the Jurassic sea monster
It's the biggest jigsaw puzzle you've ever seen but in this case, there are no instructions on the box. Hundreds of bones are laid out on the floor and Dr Hilary Ketchum, of the Oxford Museum of Natural History, has kindly offered to piece them all together. It takes more than an hour to slot the makeshift skeleton of Eve the plesiosaur into place. And you can clearly see the giant scale of the animal, with its large flippers and long neck. Plesiosaurs ruled the oceans for more than a hundre...
DNA 'tape recorder' to trace cell history
Researchers have invented a DNA "tape recorder" that can trace the family history of every cell in an organism. The technique is being hailed as a breakthrough in understanding how the trillions of complex cells in a body are descended from a single egg. "It has the potential to provide profound insights into how normal, diseased or damaged tissues are constructed and maintained," one UK biologist told the BBC. The work appears in Science journal. The human body has around 40 trillion c...
Royal Society calls for review of European GM ban
The ban on GM crops by European countries should be reassessed, the president of UK science body the Royal Society says. Prof Venki Ramakrishnan said the science of genetic modification had been misunderstood by the public and it was time to set the record straight. He said it was inappropriate to ban an "entire technology" and products should be assessed on a case-by-case basis. But opponents say GM crop technology is untested and the ban should remain. Prof Ramakrishnan said that the blank...
Mastodon meal scraps revise US prehistory
Stone tools and bones from a butchered mastodon, found at the bottom of a river in Florida, are shaking up the known history of humans in the region. A four-year investigation of the site has firmly concluded that humans lived there and, in particular, made a meal of a mastodon 14,550 years ago. This is more than a millennium earlier than humans were thought to have settled the south-eastern US. The findings are reported in the open access journal Science Advances. They reinforce the id...
Kew report makes new tally for number of world's plants
Scientists have estimated that there are 390,900 plants known to science. The new tally is part of a report carried out by the Royal Botanic Gardens, Kew. It is its first global assessment of the world's flora. The study also found that 2,034 new plant species were discovered in 2015. However, the report warns that 21% of plants are at risk of extinction, with threats including climate change, habitat loss, disease and invasive species. Prof Kathy Willis, director of science at RBG Kew,...
Solar Impulse aeroplane reaches Phoenix, Arizona
Solar Impulse, the zero-fuel aeroplane, has flown the first leg across the continental United States in its attempt to fly around the world. It left Mountain View, California, at dawn on Monday and landed 16 hours later in Goodyear, a suburb of Phoenix, Arizona. It was the 10th leg of its round the world quest. Swiss adventurer Andre Borschberg was at the controls, having taken over from Bertrand Piccard. Piccard flew Solar Impulse to the West Coast of the US from Hawaii just over ...
Tim Peake to control machine on Earth from International Space Station
UK astronaut Tim Peake will get to drive a rover on Mars shortly. Or, at least, that is the scenario he is facing in a challenging experiment. In reality, the Briton, currently on the International Space Station, will command a robot to roll around a giant sandpit in Stevenage that simulates the surface of the Red Planet. It is part of a European Space Agency project that aims to learn how astronauts can control remote systems on other worlds. Known as Meteron (Multi-Purpose End-To...
Great monarch butterfly migration mystery solved
Scientists have built a model circuit that solves the mystery of one of nature's most famous journeys - the great migration of monarch butterflies from Canada to Mexico. Monarchs are the only insects to migrate such a vast distance. So, by teaming up with biologists, mathematicians set out to recreate the internal compass they use to navigate on that journey. The findings are published in the journal Cell Reports. Lead researcher Prof Eli Shlizerman, from the University of Washington, e...
SpaceX reusable rocket lands on ocean platform
The US aerospace company SpaceX has successfully landed a resusable rocket on an ocean platform, after four previous attempts failed. Mission controllers cheered as the Falcon 9 rocket remained upright on the platform off Florida. It was returning from delivering an inflatable habitat into space for Nasa. The inflatable room will attach to the International Space Station (ISS) for a two-year test and become the first such habitat to for humans in orbit. It is due to reach the ISS around 09:0...
Dung clue to Hannibal's Alpine crossing
Scientists may be closer to revealing the route taken by Hannibal as he crossed the Alps to attack ancient Rome. A team says they have found a churned up layer of soil at an Alpine pass near the French-Italian border that dates to the time of Hannibal's invasion. In Archaeometry journal, they say the disturbed sediment was rich in microbes that are common in horse manure. Hannibal's third century BC campaign is seen as one of the greatest military endeavours in antiquity. He was commander-in...
Project to drill into 'dinosaur crater' gets under way
A joint UK-US-led expedition has got under way to drill into the Chicxulub Crater off the coast of Mexico. This is the deep scar made in the Earth's surface 66 million years ago by the asteroid that scientists believe hastened the end of the dinosaurs. Today, the key parts of the crater are buried beneath 600m of ocean sediment. But if researchers can access its rocks, they should learn more about the scale of the impact, and the environmental catastrophe that ensued. They are particularly i...
Species rule change considered
A government consultation on whether to change the rules governing how contractors deal with protected species when developing sites ends this week. The focus is on the great crested newt, a species classified as endangered under European law. Natural England, a government body in charge of protecting wildlife, is in the process of putting forward new proposals. These would make the current licensing system "more flexible and strategic". It would mean that councils and developers no longer h...
Bizarre fossil hauled its offspring around 'like kites'
A 430 million-year-old sea creature apparently dragged its offspring around on strings like kites - a baffling habit not seen anywhere else in the animal kingdom. Scientists who discovered the fossil have dubbed it the "kite runner". Ten capsules tethered to its back appear to contain juvenile progeny, all at different stages of development. Reported in the journal PNAS, the many-legged, eyeless, 1cm animal is not directly related to any living species. "There isn't an animal today that...
Four men took own lives after webcam blackmail Katy Perry gets charity award for her work with children from Hillary Clinton Philip Morris could stop making conventional cigarettes Trump eyes ex-Goldman banker Steve Mnuchin for Treasury CIA chief warns Trump: Scrapping Iran deal 'height of folly' Thousands 'miss out on stroke treatment' Samsung Electronics considers splitting firm in two South Korea's President Park 'willing to resign' Brazil Chapecoense football team in Colombia plane crash Bird flu: Netherlands culls 190,000 ducks Trump dismisses Wisconsin recount drive as 'scam' Fidel Castro death: Cubans mourn ex-leader Women in science pledge to combat hate Black Friday and Cyber Monday: Five tips for spotting a bargain Lung cancer cells spread like unanchored tents, study says Abducted California woman Sherri Papini found after three weeks Brazil president Michel Temer accused of corruption Predatory bacteria can wipe out superbugs, says study Catherine Zeta-Jones takes aim at paparazzi with 'better' bikini photos Colombia signs new peace deal with Farc Israel fires: Tens of thousands flee as fires hit Haifa Shia pilgrims among more than 80 killed in IS attack in Iraq Climate changing 'too fast' for species
Today For week For Month
website by Sargssyan