Science

A Naturalist Stumbled on an Ichthyosaur Skeleton, the Largest in U.K. History

At the bottom of a lagoon at a nature reserve in England, a secret lay dormant for millenniums, hidden by mud, water and ice. Only recently had ...

How European Royals Once Shared Their Most Important Secrets

To safeguard the most important royal correspondence against snoops and spies in the 16th century, writers employed a complicated means of ...

Fossils of a Prehistoric Rainforest Hide in Australia’s Rusted Rocks

Australia’s Central Tablelands, hundreds of miles northwest of Sydney, are dominated today by grasses and spindly trees. But scientists recently ...

Moon Cube Mystery: Chinese Rover Finds It’s Just a Small Rock

Last November, China’s Yutu-2 lunar rover spotted something curious on the far side of the moon. The image was blurry, but it was unmistakable ...

Why a Comet’s Head Is Green, but Its Tail Is Not

The head of a comet often glows green; the tail mostly does not. That includes Comet Leonard, which made its closest pass to the sun on Monday ...

NASA’s Retiring Top Scientist Says We Can Terraform Mars and Maybe Venus, Too

Since joining NASA in 1980, Jim Green has seen it all. He has helped the space agency understand Earth’s magnetic field, explore the outer solar ...

NASA-Russia Alliance in Space Is Shaken by Events on Planet Earth

When Russia’s military blasted an old satellite to smithereens last month with an antisatellite missile, American officials reacted angrily ...

In Orangutan Parenting, the Kids Can Get Their Own Dinner

Young orangutans seem much like human toddlers: amiable, endearing, lovable. But unlike human kids, when their mothers say no, they don’t whine ...

NASA Mission Could Blast an Asteroid That Once Menaced Earth

First it punched an asteroid. Now, a NASA spacecraft’s rampage may continue and it could blast a hole in another space rock. The OSIRIS-REX ...

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