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67,618 articles from Yahoo!

Scientists solve mystery of the origin of Stonehenge megaliths

Geochemical testing indicates that 50 of Stonehenge's 52 pale-gray sandstone megaliths, known as sarsens, share a common origin about 15 miles (25 km) away at a site called West Woods on the edge of Wiltshire's Marlborough Downs, researchers said on Wednesday. The sarsens were erected at Stonehenge around 2500 BC. The largest stands 30 feet (9.1 meters)...


WEDNESDAY 29. JULY 2020


NASA’s Mars Perseverance rover mission serves as ultimate test for working from home (planet)

The launch of NASA's Mars Perseverance rover marks the start of a seven-month-long journey involving tens of millions of miles of travel — but it also marks the end of an eight-year-long journey involving millions of miles of travel on the part of scientists and engineers across the country. And perhaps the biggest marvel is that, in the end, most of them got the rover and its scientific...

Bringing Mars back to Earth

An audacious mission to bring rock samples from Mars back to Earth is about to begin - find our more with our illustrated...


TUESDAY 28. JULY 2020


Virgin Galactic offers a peek inside SpaceShipTwo in VR, making its case in the space tourism race

More than a decade after Virgin Galactic unveiled a swoopy, spacey look for the passenger cabin of its SpaceShipTwo rocket plane, the company took the wraps off a more down-to-Earth design that reflects what spacefliers will actually see when they climb into their seats. And in a move befitting this era of social distancing, the big reveal was done with the aid of virtual reality. Virgin Galactic...


MONDAY 27. JULY 2020


'You Do the Right Things, and Still You Get It'

HOUSTON -- Elaine Roberts, a longtime bagger at a supermarket, tried to be so careful. She put on gloves and stopped riding the bus to work, instead relying on her father to drive her to keep their family safe. She wore masks -- in space-themed fabrics stitched by her sister -- as she stacked products on shelves, helped people to their cars and retrieved carts from the parking lot.But many of the...


SUNDAY 26. JULY 2020



SATURDAY 25. JULY 2020


How the lowly mushroom is becoming a nutritional star

Mushrooms are often considered only for their culinary use because they are packed with flavor-enhancers and have gourmet appeal. That is probably why they are the second most popular pizza topping, next to pepperoni.In the past, food scientists like me often praised mushrooms as healthy because of what they don’t contribute to the diet; they contain no cholesterol and gluten and are low in fat,...

I Lived in a Dome in Hawaii to Simulate Life on Mars

It was the crew’s first night, we had just arrived, we were settling in. Kim Binsted, principle investigator on the HI-SEAS project, was preparing to leave for four months, nervous, I think, about launching this Mars mission, a project whose actualization was so uncertain throughout the buildup—NASA nearly pulled funding, there were delays in the construction of the habitat—that at times it...


FRIDAY 24. JULY 2020