When nature knows best
The trail-blazing sci-fi series debuted 50 years ago and has taken countless fans where none had gone before
Why did the spider evolve to have that crimson hourglass on its back?
Just a sampling of what we can learn from those who have been to space
If neuroscientists are right, you’ll soon be able to sharpen your focus and boost your memory by recharging your brain—with electricity
Tumbling rocks may have lit up Comet Hartley 2, allowing its discovery in 1986
Astronomers are arguing about whether they can trust this untested—and potentially untestable—idea
Primates that grow up under tough conditions don’t live as long as those that have it easy
Journey to the Center of Earth
These images illustrate the brutal beauty geologic processes carve into our planet
The science fiction writer also talks about the future of space travel
The director of the National Institute of Allergy and Infectious Diseases talks about developing a Zika vaccine
With no predators or competition, rodents can eat baby birds alive
These odd fruits, veggies and animals show the vanishing diversity of our food
In a historic first, an animal that went extinct in the African wild is reintroduced, giving hope for many endangered species
Thanks to a new book, these female pioneers who helped the U.S. win the space race are finally getting their due
Visitors can view ghostly footprints that record prehistoric steps in pale blue stone
Climate change could alter temperature patterns in a way that stops corals from preparing for bleaching events
When hunting, the Peregrine falcon will fly to great heights, then dive bomb its prey
In a new book, a Smithsonian naturalist tells the gritty, controversial tale of how one of America’s presidents felled a threatened species
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