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A Large Body of Water on Mars Is Detected, Raising the Potential for Alien Life

A Large Body of Water on Mars Is Detected, Raising the Potential for Alien Life

An artist’s rendering of the European Space Agency’s Mars Express spacecraft searching the planet’s south pole for liquid water.

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.”

Review: ‘A Spirit of Charity’ Probes Struggle of Public Hospitals

Review: ‘A Spirit of Charity’ Probes Struggle of Public Hospitals

A Spirit of Charity: Restoring the Bond Between America and Its Public Hospitals. By Mike King. Secant. 352 pages. $26.95.

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.

New Wearable Sensor Can Collect Data From Sweat

New Wearable Sensor Can Collect Data From Sweat

Jo-Wilfried Tsonga of France wiped sweat from his face during the Australian Open. Researchers say their new wearable sensor can measure perspiration for conditions like dehydration and fatigue.

Depicting the Colors of Space

Depicting the Colors of Space

The large Whirlpool Galaxy, left, is known for its sharply defined spiral arms.

In Footprints on Scotland’s Isle of Skye, Signs of a Dinosaur Playground

In Footprints on Scotland’s Isle of Skye, Signs of a Dinosaur Playground

A sauropod footprint found in Scotland was among several that included tracks left by smaller, two-legged meat-eaters. Their presence together upends a theory that the larger plant-eaters waded into shallow, muddy waters to evade predators.

Ships Unearthed in Virginia Offer Glimpse of Colonial Era

Ships Unearthed in Virginia Offer Glimpse of Colonial Era

An 18th-century ship was discovered last month in Old Town Alexandria, Va., the fourth discovered in recent years within a two-block radius.

Yes, They’ve Cloned Monkeys in China. That Doesn’t Mean You’re Next.

Yes, They’ve Cloned Monkeys in China. That Doesn’t Mean You’re Next.

Zhong Zhong, one of two cloned monkeys at the Chinese Academy of Sciences in Shanghai. They are the first primates cloned by transferring DNA into fetal cells.

Elephants Are Very Scared of Bees. That Could Save Their Lives.

Elephants Are Very Scared of Bees. That Could Save Their Lives.

A bee’s sting won’t hurt an elephant’s tough hide, but bees can swarm and wound more sensitive places like the trunk, eyes and mouth.

An Ancient Horse Is Unearthed in a Utah Backyard

An Ancient Horse Is Unearthed in a Utah Backyard

An illustration of Haringtonhippus francisci, an extinct horse species that was found in North America during the last ice age. Rick Hunter, a Utah paleontologist, said the horse, whose skeleton was discovered in a Utah backyard, may have looked similar to this.

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.

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.

What We Learned in 2017

What We Learned in 2017

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


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