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23 articles from Yahoo!

These Winged Dinosaurs Hurtled Through the Trees like Haywire Hang Gliders

During a blip in time in the late Jurassic, a dinosaur that weighed no more than a chinchilla flung itself from tree to tree, spread its wings and tried to soar. In theory, it sounds beautiful -- an early attempt at flight before birds figured out the blueprint.In practice, it was chaotic.The dinosaur, Yi qi, only barely managed to glide, stretching out and shimmying its skin-flap, downy-feathered...

Colorado wildfires drag on later than normal, break records

While it could be an apocalyptic scene out of a movie, it has become the reality of Colorado's wildfire season. One of Colorado’s smaller fires exploded late Wednesday from 30 square miles (78 square kilometers) to 196 square miles (508 square kilometers) and closed Rocky Mountain National Park. Fire officials say it has so far burned 265 square miles (686 square...

Britain's new polar ship, the Sir David Attenborough, set for sea trials

Britain's new polar ship, the Sir David Attenborough, will leave for sea trials on Wednesday to be put through its paces before making its maiden voyage to Antarctica late next year to boost research into climate change. It will spend two weeks at sea off the coast of North Wales for technical trials before the shipyard formally hands it over. The British Antarctic Survey (BAS) will operate the...

Moderna completes enrollment in large COVID-19 vaccine study

Over 25,650 participants have so far received their second shot of the vaccine candidate, mRNA-1273, the company said. Moderna said its study includes more than 11,000 participants from minority communities, including 6,000 Hispanic or Latin-American participants and more than 3,000 Black or African-American participants. The U.S. Food and Drug Administration requires at least two months of...

NASA Touched an Asteroid. How Much Will It Bring Home?

When NASA's OSIRIS-REX spacecraft touched the surface of an asteroid Tuesday to gather a sample of rocks and dirt, the operation proceeded smoothly, to the glee of the mission's operators 200 million miles away on Earth.But the biggest question remained unanswered: How much of the asteroid did OSIRIS-REX pick up? Did it manage to gather any samples at all?On Wednesday, the mission managers...

Study finds AstraZeneca's COVID-19 vaccine follows genetic instructions

AstraZeneca's Oxford COVID-19 vaccine accurately follows the genetic instructions programmed into it by its developers to successfully provoke a strong immune response, according to a detailed analysis carried out by independent UK scientists. "The vaccine is doing everything we expected and that is only good news in our fight against the illness," said David Matthews, an expert in virology from...

Experts call for climate change debate to move beyond settled science and focus on action

Climate change is set to be one of the topics discussed by former Vice President Joe Biden and President Donald Trump in the last presidential debate of 2020, but climate scientists say the political conversation often focuses too much on the "what" and "why" that experts already agree on. The first presidential debate marked the first time climate change has been asked on that stage in 12 years....

Do I need to wear a mask if I’m 6 feet away from others?

Health experts recommend wearing masks in public and keeping your distance from others in most cases, but whether you should do both could depend on the situation. “There’s no invisible force field at 6 feet,” said Saskia Popescu, an infectious disease expert at George Mason University. Other factors could also influence whether it’s best to keep your distance while also wearing a...

Trio who lived on space station return to Earth safely

A trio of space travelers safely returned to Earth on Thursday after a six-month mission on the International Space Station. The Soyuz MS-16 capsule carrying NASA astronaut Chris Cassidy, and Roscosmos’ Anatoly Ivanishin and Ivan Vagner landed on the steppes of Kazakhstan southeast of the town of Dzhezkazgan at 7:54 a.m. (2:54 GMT) Thursday. After a brief medical checkup, the three will be...

NASA spacecraft sent asteroid rubble flying in sample grab

NASA's Osiris-Rex spacecraft crushed rocks and sent rubble flying as it briefly touched an asteroid, a strong indication that samples were collected for return to Earth, officials said Wednesday. Scientists won't know until next week how much was gathered at asteroid Bennu — they want at least a handful of the cosmic rubble. “We really did kind of make a mess on the surface of this asteroid,...