Popular Science. Demystifying the worlds of science and technology since 1872.

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Rachel Feltman

Rachel Feltman

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Latest Articles

a hamster asleep in the gloved hand of a scientist
Biology

How hibernating hamsters could help astronauts

Special cells can repair muscles, even when some animals are dormant.

a fox catches a crab mid-air3rd Place Photographer of the Year 2025 was awarded to Terry Donnelly from England, UK.
Wildlife

Society of Photographers announces Photographer of the Year

Our beautiful world.

An wide-angle, eye-level photograph of two people in full white space suits walking across a desolate, rocky landscape meant to resemble the surface of Mars. The environment is filled with reddish-brown dirt and large, jagged rock formations under a dusty, sepia-toned orange sky.
Mars

Will life on Mars require a genetic rewrite?

Microgravity, radiation, and extreme climates pose ethical and biological challenges that researchers are racing to overcome.

live black scorpion (Emperor Scorpion)
Wildlife

Deadly scorpions are picky about their soil

Dirt may help map where scorpions live—and potentially save lives.

Old coins from Spain, United Kingdom, France, Italy, Federal Republic of Germany and Austria. These coins are dating from the 1950s, 1960s, 1970s and 1980s.
Projects

How to start a coin collection 

There are a few simple (and inexpensive) ways to get going. 

A close-up oil painting of a young woman with dark hair and a pensive expression, wearing an intricate white lace collar. She holds a pair of scissors to a lock of her hair, suggesting a moment of mourning or sacrifice.
Archaeology

Forget flowers: lovers in 18th- and 19th-century Ireland exchanged hair

Who needs boxes of chocolate?

a white driverless car drives in front of a large state capitol building
Self Driving

Radio waves could help driverless cars see around corners

HoloRadar helps give the vehicles a more complete picture of their surroundings.

glute stretch knee across belly
Fitness & Exercise

7 glute stretches for better mobility and less pain

Learn why your hips feel stiff and how to fix it with these expert-recommended movements for maximum mobility.

19th century Japanese coin in metal detectorist's hand
Archaeology

Metal detectorist finds 19th century Japanese coin in Australia

The discovery likely dates back to the continent’s gold rushes.

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Popular Science has been demystifying the worlds of science and technology since 1872. We explain the inner workings of the phone in your pocket, explore world-changing innovations, and examine everything from the marvels of deep space to the secret lives of staples like bread. We deliver an engaging, approachable, and inclusive look at emerging technologies and scientific advances.
Daily, Popular Science unpacks the science behind the top current new stories, dissects the latest technology and digital trends, and helps readers live smarter, safer, and happier through clever DIY projects.

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