Light shines at full intensity even during periods of low activity.
Most streets are either too bright or too dark. If we have the technology, why are we still over-lighting our streets?
Our street lighting doesn’t need to be this bad
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The double-hinged door between astrophysics and the military
Excerpt: Accessory to War
One notable twentieth-century result of the countless alliances between astrophysics and the military is the thermonuclear fusion bomb, whose design principles arise in…
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Sending wireless data 372 miles between two balloons takes really good aim
Here's why one of Google's sister companies is working on the tech.
Loon just announced they’d sent data between two balloons more than 372 miles over the Atlantic.
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Antidepressants might contribute to antibiotic resistance
But even if they do, they're not our biggest concern.
To investigate how this might relate to antibiotic resistance, a team of researchers exposed E. coli populations to various doses of fluoxetine in the lab.
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How we found a beautiful new species of snailfish deep beneath the sea
Researchers discovered these ethereal purple specimens four-and-a-half miles down.
Four-and-a-half miles beneath our research vessel, which was floating on the surface of the Pacific Ocean, we captured footage of several previously undiscovered species…
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How to prepare for a hurricane that's about to hit
Keep an eye on the weather.
As Hurricane Florence looms over the East Coast, residents are hunkering down or evacuating. Here's what you should do when faced with a hurricane.
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Charted: How hurricanes are becoming more extreme
Climate change is driving significant shifts in extreme weather.
Hurricanes have always been destructive—but as temperatures rise, how much worse are they getting?
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Hurricane Florence is coming. Here's what you need to know.
This is not a storm to take lightly.
Florence is a serious storm that warrants the attention of everyone near its path.
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Apple's iPhone event: What to know about the iPhone XS, XS Max, XR, and Apple Watch 4
Smaller iPhone X? Bigger iPhone X? Cheaper iPhone X? More expensive iPhone X? Let's find out!
Pull up a beanbag chair, grab a Snapple (not the lemon teas, those are mine), and let's watch Tim Cook and his Cupertino pals announce some new Apple hardware.
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The weirdest things we learned this week: Lady Liberty's big secret, the ultimate exercise hack, and a penis in a bottle
Our editors scrounged up some truly bizarre facts.
What’s the weirdest thing you learned this week? Well, whatever it is, we promise you’ll have an even weirder answer if you listen to PopSci’s newest podcast.
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If you want personalized medicine, we’ll need to know what time it is in your liver
This atlas maps what time it is in different parts of your body.
The new atlas will help make the idea of personalized medicine built around the body clock more mainstream and improve patient outcomes.
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How designers cope with ever-changing iPhone screens
Your digital life would fall apart without this grid.
Responsive design allows apps and websites to render properly, no matter what size screen Apple or Android dream up next.
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Conservation takes one scientist to the extreme
Because what happens in the most remote stretches of the planet can have a profound impact on life on Earth.
For conservation scientist Joel Berger, going to the extreme is just part of a day's work.
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Franck Marchis is connecting amateur astronomers to extraterrestrial researchers
"Seeing color in a nebula from a garden in San Francisco? That's pretty cool."
Marchis has spent his career getting clear pictures of comets, Uranus, and Neptune. Still, he says, "Seeing color in a nebula from a garden in San Francisco? That's…
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How to record a phone call
Log video and audio conversations on any device.
When you call a friend, you might use FaceTime, Skype, or a variety of other apps. Here's how to save those audio and video conversations.
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You should not drink human blood. It will not keep you young.
No, just...no.
Yes, headlines and tweets are designed to make you click. But an unscrupulous headline can go too far by… uh… promoting vampirism.
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6 reasons to upgrade your iPhone right now
And 3 reasons not to.
Looking for reasons to shell out money for a shiny new phone—or just keep using the one you have? We've got you covered.
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Hurricanes are getting more intense—but should we add a Category 6?
Wind speed isn't everything.
First of all, there is currently no Category 6 for hurricanes. But some people are looking into it.
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The Apple Watch is evolving into a legitimate medical device
The smartwatch's new ECG function brings fitness trackers into real medical care.
This week, Apple took a big step in bringing its Apple Watch Series 4 beyond the scope of a typical fitness or wellness trackers into the sphere of clinical medical…
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Our seasons are out of whack, which is really bad for migratory birds
Spring is advancing much faster in northern areas than it is in southern areas throughout three migration routes.
In North America, spring is arriving earlier and earlier. But this shift isn't uniform across the continent. That unevenness, according to a new study, has unfortunate…
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