Science

Science • Jun 09

Thruster breakthrough? New 2-in-1 propulsion system is about to get an in-space test

A new propulsion system feeds the same "monopropellant" fuel into electrical and chemical thrusters, potentially saving on mass and complications for future...

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Science • Jun 09

NASA announces astronauts for Artemis III spaceflight, scheduled for 2027

Questions linger over whether the explosion of the Blue Origin New Glenn rocket will affect the Artemis III mission.

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Science • Jun 09

Can NASA Really Land Astronauts on the Moon by 2028?

Experts have been hopeful, but say the agency's lunar aspirations are largely at the whims of two billionaires, Elon Musk and Jeff Bezos.

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Science • Jun 09

NASA names 4 astronauts on the 'highly complex' Artemis III lunar training mission

NASA named the international crew of four that will fly on its next Artemis mission as early as next year. It's a key test flight ahead of a human landing...

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Science • Jun 09

NASA’s Crew Safety Alert Exposed a Bigger ISS Leak Problem

The dreaded air leak on the International Space Station (ISS) has gotten so bad that Russian cosmonauts were preparing to use a saw to access a suspected...

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Science • Jun 09

NASA announces the astronauts for the next Artemis mission. Here's what they'll be doing.

Artemis III has a crew. On June 9, NASA announced the four crewmembers of the next Artemis mission, expected to launch no earlier than June 2027: Commander...

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Science • Jun 09

Satellite data reveal Southern Ocean vertical currents diving 3,000 feet below surface

Ocean currents are not just horizontal motions that flow from side to side. There are also vertical currents that act like deep-sea elevators, pushing heat...

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Science • Jun 09

2 long-vanished 'super Earths' once orbited near Neptune in our outer solar system, new study hints

Our solar system may have hosted up to six giant planets in its first hundred million years, a new study suggests. The findings paint a more crowded picture...

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Science • Jun 09

Chesapeake native Andre Douglas selected for NASA's Artemis III crew

NEW YORK — A Chesapeake native has been named to the crew of NASA's Artemis III mission, the next step toward eventually landing astronauts on the moon.

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Science • Jun 09

Houston's Created Its Own Problem: The Unnecessary Fight To Snatch Up The Discovery Space Shuttle Continues

If there is a custody battle to be had, the Smithsonian has it locked down.

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Science • Jun 09

Uninherited parental genes leave lasting imprint on children's lives

Our parents' genes, even the ones we didn't inherit, leave a measurable lasting imprint on our lives. An international team led by researchers at the...

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Science • Jun 09

NASA Marches Toward Artemis III Mission in 2027, Names Crew Members

Taking another step toward one of the most complex human spaceflight missions in recent history, NASA on Tuesday provided new Artemis III details and.

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Science • Jun 09

A Surprising Find in Ancient Squirrel Poop: Woolly Mammoth Meat

In a new study, fossilized droppings suggested that ancient ground squirrels ate the meat of much larger animals, including mammoths,...

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Science • Jun 09

Woolly mammoth among trove of ancient DNA found in squirrel poo

A huge treasure trove of ancient DNA from animals including extinct woolly mammoths has been discovered in frozen squirrel faeces in Canada's remote Yukon...

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Science • Jun 09

Ground squirrel coprolites preserve complex archives of ancient environmental DNA over 700,000 years

Permafrost-preserved ground squirrel (Urocitellus) burrows in Yukon, Canada contain coprolites (palaeofaeces) that span from the Holocene to at least the...

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Science • Jun 09

Frozen squirrel scat preserves ancient DNA from hundreds of species

A complex ecosystem of woolly mammoths, bison, horses and big cats has been elucidated by studying the faeces of small rodents that probably ate the bigger...

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Science • Jun 09

After tracking how people formed new friendships, a researcher estimated the hours it quietly takes — about 50 to feel like casual friends, but more than 200 before someone becomes a close one

More than 200 hours of hanging out, talking, and doing ordinary things together before someone starts to look less like a regular friend and more like a...

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Science • Jun 09

Ancient squirrel feces a ‘time capsule,’ smelling as fresh as 700,000 years ago

The scent of ancient squirrel feces filled the laboratory where researcher Tyler Murchie was working to extract the genetic material it contained,...

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Science • Jun 09

Frozen squirrel poop hints at sights and smells of Ice Age ecosystems

DNA preserved in ancient scat reveals what Yukon ground squirrels ate and what animals shared their world.

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Science • Jun 09

Squirrel droppings yield a goldmine of prehistoric DNA

Researchers analyzed permafrost samples collected from ground squirrel burrows that span several glacial periods and can remain frozen and sealed for...

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