Rachel Feltman, Popular Science

Rachel Feltman

Popular Science

New York, NY, United States

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  • Popular Science
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Past articles by Rachel:

Get to know the very charismatic penis fish invading a California beach

They're not penises and they're not fish, but they'll ruin genitalia and marine life for you just the same. → Read More

The FDA is fast-tracking a second psilocybin drug to treat depression

Why the Food and Drug Administration is calling hallucinogenic mushrooms a "breakthrough" therapy for depression—again. → Read More

Apple Watches and iPhones want to track your period to make reproductive health better for all

The goal is to gain insight on sub-clinical conditions—women’s health issues that don’t quite fit into a tidy diagnosis, or aren’t severe enough to receive one—so physicians can offer relief. But what happens to the data otherwise? → Read More

The EPA’s proposal would take good science out of public health regulations

A published draft outlines policy changes that could even allow the government to roll back evidence-based protections already in place. → Read More

“Virginity tests” are violent, unnecessary, and without medical merit

There are much better ways to support teen health and safety than hymen checks and two-finger tests. → Read More

What has hundreds of sexes and excels at math? This is Slime Molds 101.

“The Blob” is way less mysterious than some have reported—but it's still really awesome. → Read More

America’s sexually transmitted disease rates are out of control

This represents the fifth year in a row that sexually transmitted infections have hit all-time highs. What's happening, and how can we stop it? → Read More

What shape is the universe?

It's hard to imagine the vast nothingness of outer space having a shape, and even harder to sketch what a four-dimensional object looks like in two dimensions—but we tried. → Read More

I went from barely biking to doing a 545-mile ride in less than a year. Here’s the gear that helped.

These tips can help you go from the most awkward thing on two wheels to someone who’s ready to hit the road. → Read More

There are now 805 cases of 'vaping lung' and at least a dozen deaths

A dozen deaths spread across 10 states have been connected to the outbreak of lung illness tied to vaping. → Read More

Scientists are scrambling to take more photos of this seemingly alien comet

Astronomers have snapped a shot of what could be a comet visiting us from another solar system—only the second interstellar object we’ve ever spotted in our own cosmic neighborhood. The fact that it showed up so hot on the tail of ‘Oumuamua, an infamous (and still largely mysterious) cigar-shaped rock first seen in late 2017, suggests these alien interlopers might actually be pretty common. → Read More

Hurricane Dorian, now a Category 4, still threatens Florida while setting its sights on other states

Florida is not out of the woods, and now Georgia and the Carolinas have reason to worry, too. → Read More

Celebrate National Dog Day with 14 of the best doggone stories we've got

Every dog must have its day, and that day happens to be August 26. Here are 14 of PopSci’s best puppy tales in honor of National Dog Day. → Read More

The UK just lost its measles elimination status. We could be next.

Public Health England confirmed on Monday that the UK has lost its “measles-free” status. What does that mean? And could we be next? → Read More

The inside scoop on Charmin’s fake poop (and how it helps keep your butt clean)

When Charmin offered PopSci an exclusive look at their toilet-paper-testing facilities—including unprecedented access to fake poop—we couldn't say no. → Read More

Congratulations to new penguin dads Skipper and Ping

Two male penguins at the Berlin Zoo are co-parenting an abandoned egg, according to local news reports. → Read More

Believe it or not, you'll actually love watching this video of leaping maggots

She is beauty. She is grace. She is catapulting herself away from danger, flying to distances up to 30 times the length of her own body. → Read More

We were not almost killed by an asteroid this week

You hate to see it, but city-killing asteroids are actually quite unlikely to kill cities. → Read More

Yes, astronauts are baking cookies in space. No, they can’t eat them.

In space, no one actually gets to eat the cookies. At least not yet. → Read More

This terrifyingly tentacled moth reminds us that nature is freakier than any nightmare

The world is full of great and terrible wonders. These are mostly terrible. → Read More