All scientific theories, at some level, are wrong. That’s why consensus is so vital. There are two important and common words that, when used scientifically, have a very different meaning than […]
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The odds are slim, but the consequences would be literally world-ending. There really is a chance of a black hole devouring the Earth.
Speculation about the existence of aliens goes all the way back at least to the Greek philosophers. Their arguments will sound familiar.
Gravitation, all on its own, can reveal what’s present in the cosmos like nothing else.
It is impossible for science to arrive at ultimate truths, but functional truths are good enough.
The universe’s largest seismometer reveals clues about the Gas Giant’s interior.
There’s a lot to get rid of if we want to get only our Universe out of String Theory. A lot of people, when they learn about String Theory for the […]
Is science absolute? Its truths and discoveries guide us toward the nature of reality, but we must always remain open-minded to revisions.
There was a lot of hype and a lot of nonsense, but also some profoundly major advances. Here are the biggest ones you may have missed.
The first world that humans should inhabit beyond the Earth is the Moon, not Mars. Here’s why terraforming our lunar neighbor is so appealing.
Two fundamentally different ways of measuring the expanding Universe disagree. What’s the root cause of this Hubble tension?
“The Expanse” is the best vision I’ve ever seen of a space-faring future that may be just a few generations away.
Compared to Earth, Mars is small, cold, dry, and lifeless. But 3.4 billion years ago, a killer asteroid caused a Martian megatsunami.
When you bring two fingers together, you can feel them “touch” each other. But are your atoms really touching, and if so, how?
The pulse took just 35 hours to cover the whole world.
Speeding through the Universe and leaving a wake of new stars, this runaway supermassive black hole is likely the first among thousands.
SpinLaunch’s launcher, which is larger than the Statue of Liberty and works like the Olympic hammer-throw event, just came online in the New Mexico desert.
The great theoretical physicist Steven Weinberg passed away on July 23. This is our tribute.
Back in 1990, we hadn’t discovered a single planet outside of our Solar System. Here are 10 facts that would’ve surprised every astronomer.
Two stellar mass black holes, if they merge in the vicinity of a supermassive black hole, could have their gravitational wave signal affected by the strongly curved space around them. […]
If stars don’t go supernova at first, they can get a second chance after becoming a white dwarf. But can their companions survive?
In our Solar System, even the two brightest planets frequently align in our skies. But only rarely is it spectacularly visible from Earth.
Are space and time real like atoms are, or is spacetime just a calculational tool? When most of us think about the Universe, we think about the material objects that […]
All across the Universe, planets come in a wide variety of sizes, masses, compositions, and temperatures. And most have rain and snow.
We once thought the Moon was completely airless, but it turns out it has an atmosphere, after all. Even wilder: It has a tail of its own.
We can describe what we see happening, but we don’t understand why. Despite our vast cosmic knowledge, enormous unknowns remain. The quantum fluctuations inherent to space, stretched across the Universe […]
Venus has far more carbon dioxide in its atmosphere than Earth, which turned our sister planet into an inferno. But how did it get there?
Shooting star or piece of space dust?
Dark energy is one of the biggest mysteries in all the Universe. Is there some way to avoid “having to live with it?”