Should you blast the A/C even when you're not at home?
How one startup plans to use "death rays" for good instead of evil.
13.8 billion years ago, the hot Big Bang gave rise to the Universe we know. Here's why the reverse, a Big Crunch, isn't how it will end.
In 1974, Stephen Hawking showed that even black holes don't live forever, but emit radiation and eventually evaporate. Here's how.
Even though the brain is only 2% of our total body mass, it consumes up to 25% of our energy.
A new paper combines two concepts from the edges of astrophysics: Dyson Spheres and black holes. A Type III civilization could combine them.
Most electric car charging is done at night. A grid powered mostly by renewable energy might not be able to meet demand, but there is a solution.
From black holes to dark energy to chances for life in the Universe, our cosmic journey to understand it all is just getting started.
The Big Bang was hot, dense, uniform, and filled with matter and energy. Before that? There was nothing. Here's how that's possible.
Before we discovered gravitational waves, multi-messenger astronomy got its start with light and particles arriving from the same event.
Pro-athletes are entertainers. Being healthy means something else.
We frequently say it's 2.725 K: from the light left over all the way from the Big Bang. But that's not all that's in the Universe.
Our model of the Universe, dominated by dark matter and dark energy, explains almost everything we see. Almost. Here's what remains.
There are two fundamentally different ways of measuring the Universe's expansion. They disagree. "Early dark energy" might save us.
The war in Ukraine is unlikely to trigger a catastrophic nuclear meltdown. Physics and smart engineering are the reasons why.
The new material may make marine uranium extraction economically feasible.
EV charging stations are the most widespread alternative to gas and diesel pumps. Each alternative has its own hotspots and "deserts."
As particles travel through the Universe, there's a speed limit to how fast they're allowed to go. No, not the speed of light: below it.
IceCube just found an active galaxy in the nearby Universe, 47 million light-years away, through its neutrino emissions: a cosmic first.
Before we formed stars, atoms, elements, or even got rid of our antimatter, the Big Bang made neutrinos. And we finally found them.
Deliveries of the $250k Lightyear 0 will start in November 2022.
The big-picture physics is simple – let gravity do its job.