Search Results

In all the Universe, only a few particles are eternally stable. The photon, the quantum of light, has an infinite lifetime. Or does it?

Some solar cells are so lightweight they can sit on a soap bubble.

If you're a massless particle, you must always move at light speed. If you have mass, you must go slower. So why aren't any neutrinos slow?

Should you blast the A/C even when you're not at home?

Once water gets more than about 200 feet deep, building on the sea floor is out of the question.

Over time, the Universe becomes less dominated by dark matter and more dominated by dark energy. Is one transforming into the other?

The idea of gravitational redshift crossed Einstein's mind years before General Relativity was complete. Here's why it had to be there.

For decades, theorists have been cooking up "theories of everything" to explain our Universe. Are all of them completely off-track?

Ever since the Big Bang, cataclysmic events have released enormous amounts of energy. Here's the greatest one ever witnessed.

Now they're pointing the way to future battery technologies.

The site will be the first working example of a geological disposal facility.

Smashing things together at unprecedented energies sounds dangerous. But it's nothing the Universe hasn't already seen, and survived.

Could Russia's plan actually destroy demand for natural gas?

Wind farms seem less productive when scientists incorporate more realistic atmospheric models into their output predictions.

With the right material at the right temperature and a magnetic track, physics really does allow perpetual motion without energy loss.

Scientists are solving the problem of costly energy storage.

Before we discovered gravitational waves, multi-messenger astronomy got its start with light and particles arriving from the same event.

Wind energy is one of the cleanest, greenest sources of power. But could it have the sneaky side-effect of changing the weather?

In just a few seconds, a gamma-ray burst blasts out the same amount of energy that the Sun will radiate throughout its entire life.

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.

We can reasonably say that we understand the history of the Universe within one-trillionth of a second after the Big Bang. That's not good enough.

Lasers are all around you. This ubiquitous technology came from our understanding of quantum physics.

Yes, dark energy is real. Yes, distant galaxies recede faster and faster as time goes on. But the expansion rate isn't accelerating at all.

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.

When the Universe was first born, the ingredients necessary for life were nowhere to be found. Only our "lucky stars" enabled our existence.

The war in Ukraine is unlikely to trigger a catastrophic nuclear meltdown. Physics and smart engineering are the reasons why.

Pro-athletes are entertainers. Being healthy means something else.

IceCube just found an active galaxy in the nearby Universe, 47 million light-years away, through its neutrino emissions: a cosmic first.

The new material may make marine uranium extraction economically feasible.

More than any other of Einstein's equations, E = mc² is the most recognizable to people. But what does it all mean?