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

Illustration of two astronauts sitting on toilets while looking at their phones
NASA

Even astronauts get constipated in space

NASA packed laxatives on Artemis II for a reason.

Multiple Sriracha bottles photoshopped floating above the lunar landscape during earthrise
Moons

The 5 hot sauces aboard Artemis II are kinda weak

Don’t expect any ‘Hot Ones’ entries on the menu.

man holding android phone
Tech Hacks

Samsung Galaxy phones now support Apple AirDrop. Here’s how it works.

It’s now easier to move files from Android to Apple devices.

Healthy senior woman exercising with aqua dumbbells at water aerobic session in swimming pool. Healthy seniors workout in a swimming pool with aqua dumbbells.
Fitness & Exercise

What exercises will keep my aging joints healthy?

Walking deserves a special mention.

This image provided by NASA, astronaut and Artemis II mission specialist Christina Koch peers out of one of the Orion spacecraft's main cabin windows, looking back at Earth, as the crew travels towards the Moon on Thursday, April 2, 2026.
Moons

Artemis II astronaut Christina Koch: ‘Looking back at Earth…it truly emphasized how alike we are’

Koch previously spent 328 consecutive days in space.

Illustration of two black holes nearing a collision with a beam of energy connecting them
Black Holes

Two supermassive black holes are on a collision course

It’s the first time astronomers have ever witnessed the stunning cosmic event.

Google search page with 'Is AI Overview accurate?' -- the thinking emojis are placed over the two o's in Google
AI

Study: Google’s AI Overviews show millions of wrong answers every hour

With over 4 trillion Google queries every year, the inaccuracies add up.

A high-resolution photograph shows both sides of a damaged, circular silver-gilt pendant depicting John the Baptist. The artifact is chipped on the right side and features a small suspension hole at the top. The obverse (left) shows a profile view of a bearded figure wearing a crown or headdress, while the reverse (right) features a central equal-armed cross enclosed in a beaded circle and surrounded by medieval-style lettering.
Archaeology

Metal detectorist finds Viking Age gold coin that might upend history

The ninth-century coin pendant depicts a Christian saint in a pagan world.

Two humpback whales underwater
Whales

513 humpback whales gather at massive Caribbean breeding ground

A stunning video captures one of the largest humpback whale gatherings ever recorded.

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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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