A newly described relative of Tyrannosaurus rex is the largest known feathered animal - living or extinct. The feathered meat-eating dinosaur lived about 125 million years ago and is estimated to have weighed a whopping 1,400kg as an adult.
The new species, known as Yutyrannus, has been identified from three fossils found in north-eastern China. The finds, detailed in Nature journal, challenge current theories about the evolution of T.rex and its relations.
T. rex relative is biggest ever feathered animal
Evidence of fire use by ancestors a million years ago
Scientists say they have new evidence that our ancestors were using fire as early as a million years ago. It takes the form of ash and bone fragments recovered from Wonderwerk Cave in South Africa.
The team tells the journal PNAS that the sediments suggest frequent, controlled fires were lit on the site. The ability to use fire is regarded as a key step in human development because it gave us access to cooked foods and new technologies.
Study indicates existence of billions of habitable alien planets in Milky Way
"Our new observations with HARPS mean that about 40 percent of all red dwarf stars have a super-Earth orbiting in the habitable zone where liquid water can exist on the surface of the planet," team leader Xavier Bonfils of the Observatoire des Sciences de l'Univers de Grenoble in France said in a statement. "Because red dwarfs are so common — there are about 160 billion of them in the Milky Way — this leads us to the astonishing result that there are tens of billions of these planets in our galaxy alone."
Runaway planets ejected from galaxy at insane speeds
Planets in tight orbits around stars that get ejected from our galaxy may actually themselves be tossed out of the Milky Way at blisteringly fast speeds of up to 30 million miles per hour, or a fraction of the speed of light, a new study finds.
"These warp-speed planets would be some of the fastest objects in the galaxy, aside from photons and particles like cosmic rays," said Avi Loeb, an astrophysicist at the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass. "In terms of large, solid objects, they would be the fastest. It would take them 10 seconds or so to cross the diameter of the Earth."
Scientists reconstruct ‘elegant’ giant penguin that lived in New Zealand 26 million years ago
It was a slender bird, with long wings and a spear-like bill to catch swift ocean prey. And scientists say the first glimpse of the extinct giant penguin species was worth the 26 million-year wait.
Experts from New Zealand and the United States reconstructed a fossil skeleton of one of the giant sea birds to reveal a body shape unique from known penguin species with features that have them describing it as one elegant bird.
Astrophysicists identify new kind of planet GJ1214b, dominated by hot water
AN astronaut attempting to visit recently discovered planet GJ1214b would land in hot water - literally, US scientists say.
Researchers at the Harvard-Smithsonian Center for Astrophysics said they have identified an entirely new kind of planet, dominated not by rock, gas or other common materials, but water.
Roger Boisjoly, 73, Dies; Warned of Shuttle Danger, Paid a High Price
Six months before the space shuttle Challenger exploded over Florida on Jan. 28, 1986, Roger Boisjoly wrote a portentous memo. He warned that if the weather was too cold, seals connecting sections of the shuttle’s huge rocket boosters could fail.
“The result could be a catastrophe of the highest order, loss of human life,” he wrote.
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