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The Rational Choices of Crack Addicts

The Rational Choices of Crack Addicts

Carl Hart, an associate professor at Columbia University, is the author of the book “High Price,” a mix of memoir and scientific research about drug addiction.

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.

The Amargosa River Defies the Desert

The Amargosa River Defies the Desert

An abandoned car along the Amargosa River Trail, which runs between Death Valley and the Mojave Desert in California.

A Congressman, a Financial Deal and an Intricate Web of Conflicts

A Congressman, a Financial Deal and an Intricate Web of Conflicts

Representative Chris Collins of New York after his arraignment on insider trading charges in New York on Wednesday.

What We Learned in 2017

What We Learned in 2017

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

An Incubator for Innovation

An Incubator for Innovation

From left, Daniel Riley, Etosha Cave, Ilan Gur and Steven Kaye of the Cyclotron Road program at the Lawrence Berkeley National Laboratory, which has enrolled scientists who are starting energy-related research.

Listening to Elephants With Earthquake-Monitoring Tools

Listening to Elephants With Earthquake-Monitoring Tools

Studies have shown that elephants may be monitoring ground vibrations through their bodies, fleeing for higher ground moments before distant tsunamis strike or stomping on the ground to warn others of danger.

Space Station Could Be Split to Aid Privatization, New NASA Chief Says

Space Station Could Be Split to Aid Privatization, New NASA Chief Says

Jim Bridenstine, NASA’s administrator, said President Trump’s budget proposal put the agency’s efforts to privatize the International Space Station “on steroids.”

The Baby’s Hand Was Mummified. Why Wasn’t the Rest of Its Body?

The Baby’s Hand Was Mummified. Why Wasn’t the Rest of Its Body?

The skeleton of a child found in Hungary was partially mummified by copper from a coin placed in its hand.

Last March of the ‘Wooden Elephants’: Africa’s Ancient Baobabs Are Dying

Last March of the ‘Wooden Elephants’: Africa’s Ancient Baobabs Are Dying

A baobab tree at Epupa Falls in Namibia. Researchers suspect that Africa's "wooden elephants" are succumbing to prolonged droughts and increasing temperatures, which are parching the trees, leaving them unable to support the weight of their massive trunks.

Summer Solstice 2019: The Search for Life in the Galaxy

Summer Solstice 2019: The Search for Life in the Galaxy

An artist’s rendering of an Earthlike exoplanet orbiting another. Scientists haven’t been able to measure an exoplanet’s tilt yet, but some suspect that a planet’s tilt is key to supporting life.

Never Mind the Summer Heat: Earth Is at Its Greatest Distance From the Sun

Never Mind the Summer Heat: Earth Is at Its Greatest Distance From the Sun

Sweltering temperatures on the surface of Earth’s northern hemisphere notwithstanding, the sun and Earth are currently three million miles farther from each other than when they’re closest.

Mars InSight: NASA’s Journey Into the Red Planet’s Deepest Mysteries

Mars InSight: NASA’s Journey Into the Red Planet’s Deepest Mysteries

The landing site for the Mars InSight mission is “as close to a 100 kilometer-long parking lot as we could find anywhere,” said the mission’s principal investigator.

In Cave in Israel, Scientists Find Jawbone Fossil From Oldest Modern Human Out of Africa

In Cave in Israel, Scientists Find Jawbone Fossil From Oldest Modern Human Out of Africa

A fossilized human jawbone discovered in Israel. The find may suggest that Homo sapiens first migrated out of Africa at least 50,000 years earlier than previously thought.

Silicon Valley’s Water Conservation Conundrum

Silicon Valley’s Water Conservation Conundrum

­“Silicon Valley has been talking about water technology since they started talking about clean tech, but there are no new big ideas,” said Joel Makower, the chairman and executive editor of the GreenBiz Group.

Robot Conquers One of the Hardest Human Tasks: Assembling Ikea Furniture

Robot Conquers One of the Hardest Human Tasks: Assembling Ikea Furniture

This robot, created by researchers in Singapore, took 20 minutes 19 seconds to make and execute a plan to assemble an Ikea chair.


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