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11th December 1942: Home Guards practising throwing hand grenades from a sunken railway track doubling as a trench. (Photo by M. McNeill/Fox Photos/Getty Images)
Weapons

Family finds World War II grenade in grandfather’s basement

Fall cleaning gave the Michigan residents an unexpected surprise.

Multiracial group of female students walking together on a university campus, carrying books and backpacks
Mental Health

Spending in‑person time with friends is the biggest predictor of whether college students flourish

Students who spent more hours socializing with friends, attending student organizations and participating in cultural events tended to report feeling an overall sense of well-being.

a plate of spicy food
Nutrition

Celebrate the flavors of fall with three spicy recipes

A new book offers a history lesson with every spice.

Wutimet Bunyasirisith, Thailand - The Emerald Arch Over Lofoten, Skagsanden Beach, Lofoten, Norway
Environment

23 dazzling panoramic images from the 2026 Epson International Pano Awards

A sweeping view of our beautiful planet.

Businesspeople in Meeting
Science

Can science save meetings?

The research is rolling in, and the answer is yes. It’s possible to turn tedious work gatherings into more effective and enjoyable experiences.

a bat flying
Bats

6 ways bats are surprisingly human

We share more in common with our winged mammal compatriots than what meets the eye.

Painting of a woman in white holding a candle surrounded by men.
Archaeology

When powerful women are remembered as witches, we should challenge the historical motive

Not all witches are evil.

seeds on a clam shell
Wildlife

Why volunteers are gluing seeds to clam shells in Connecticut

Using the bivalves as gardeners could help protect vulnerable coastlines.

A smartphone on a tripod taking a video of a city at sunset
Tech Hacks

How to turn your smartphone into a mobile video editing suite

Adobe offers a free video editor for your phone—here’s what it can do.

California sea lion pup (Zalophus californianus) plays with a feather underwater. For a young sea lion, playfulness is a life strategy. They do not have the strength or stamina of adults and are unable to follow them on deep dives or multi-day hunting expeditions. Staying close to the colony, the pups trains the skills they will need through play. It looks joyful, but there is a deeper purpose to this young sea lions pursuit of a feather. Mexico’s sea lions are under threat by entanglement in fishing gear and the effects of climate change. This rookery is the only one in Baja Sur which has a growing population. It is more important than ever that young sea lions in Mexico grow to a healthy adult state. Location: Espiritu Santo Island National Park and Unesco World Heritage Site, Baja California Sur, Mexico
Bears

12 striking images from European Wildlife Photographer of the Year 2026

From slumbering bats in the caves of Hungary to peaceful bison in rural Poland.

spilled cereal on floor
Health

The 5-Second Rule is scientifically false

Don’t eat food that fell on the floor.

Uterus shaped mini computer showing Doom game load screen on display
Mental Health

Play ‘Doom’ on this tiny, uterus-shaped period tracker

Clotty also doesn’t share any personal data.

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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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