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Moving, Without Feet to Do So

Moving, Without Feet to Do So

Cilia are hairlike structures that project from cells. They can move in coordinated, rhythmic waves that propel organisms through water.

For Mark Willenbring, Substance Abuse Treatment Begins With Research

For Mark Willenbring, Substance Abuse Treatment Begins With Research

Dr. Mark Willenbring at his Alltyr outpatient clinic for substance abuse in St. Paul.

A Long, Frozen Rescue and Sharks on Twitter

A Long, Frozen Rescue and Sharks on Twitter

A helicopter from the nearby Chinese icebreaker Xue Long arrived to pick up the first batch of passengers from the stranded Russian ship Akademik Shokalskiy.

New Dive Into Old Data Finds Plumes Erupt From Jupiter’s Moon Europa

New Dive Into Old Data Finds Plumes Erupt From Jupiter’s Moon Europa

NASA’s Galileo spacecraft appears to have flown through a plume erupting from Jupiter’s moon Europa more than 20 years ago.

Dark Spots in Our Knowledge of Neptune

Dark Spots in Our Knowledge of Neptune

An image of Neptune taken by the Voyager spacecraft in August 1989, showing the storm, known as the Great Dark Spot, near the left side of the planet.

U.F.O.s: Is This All There Is?

U.F.O.s: Is This All There Is?

A U.F.O. in New Mexico in 1957. For astronomers, the biggest problem with alien visitation is not the occasional claim of mysterious light in the sky, but the fact that we’re not constantly overwhelmed with them.

Unsettling News on Knee Surgery, and a Striking Neanderthal Gene

Unsettling News on Knee Surgery, and a Striking Neanderthal Gene

An image captured from NASA TV showing astronaut Mike Hopkins during a spacewalk outside the Ineternational Space Station.

Eske Willerslev Is Rewriting History With DNA

Eske Willerslev Is Rewriting History With DNA

Dr. Eske Willerslev, director of the Center for GeoGenetics at the University of Copenhagen, earlier this month.

Science Tools Anyone Can Afford

Science Tools Anyone Can Afford

Manu Prakash with his mother, center, in India, where it was not long before he began showing an appetite for science.

SpaceX’s Secret Satellite Mission May Have Failed. What Happened?

SpaceX’s Secret Satellite Mission May Have Failed. What Happened?

The Falcon 9 rocket launched at Cape Canaveral, Fla., on Sunday, for the satellite mission known as Zuma.

A Chinese Space Station Will Fall to Earth Soon. You’ll Probably Be Fine.

A Chinese Space Station Will Fall to Earth Soon. You’ll Probably Be Fine.

A spokeswoman for China’s manned space program presented a replica of the Tiangong 1 space station (left half of the model) in 2012 with a manned spacecraft, Shenzhou 9, attached.

There’s No Place Like Home, Especially if It’s Made of Hemp

There’s No Place Like Home, Especially if It’s Made of Hemp

Russians sorting raw hemp fibers in the Kursk region in the 1960s. Hemp has been used as building material for millennia in Europe and elsewhere, but it’s only just starting to get wider recognition as a green construction option.

3.6 Degrees of Uncertainty

3.6 Degrees of Uncertainty

Icebergs near Greenland's glaciers, which are speeding up as the climate warms.

What We Learned in 2017

What We Learned in 2017

Eclipse-watchers on Nye Beach in Newport, Ore., on Aug. 21.

Ice on the Surface of the Moon? Almost Certainly, New Research Shows

Ice on the Surface of the Moon? Almost Certainly, New Research Shows

New research suggests there is ice water up there, in craters at the poles where it’s dark and cold.

Trillions Upon Trillions of Viruses Fall From the Sky Each Day

Trillions Upon Trillions of Viruses Fall From the Sky Each Day

Viruses attached to a fragment of a bacterial cell wall. “Viruses modulate the function and evolution of all living things,” scientists wrote last year. “But to what extent remains a mystery.”


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