The inevitable long, slow decline is accelerating, and there’s nothing we can do. The Universe, as it is today, is less active, is forming fewer stars, and is creating fewer chances […]

Thou shalt not conclude “aliens” from insufficient data. When it comes to what’s out there in this Universe, perhaps the only thing that’s greater than our cosmic ignorance is the […]

Avi Loeb says it’s aliens. Every other astronomer disagrees. Here’s why. In 2017, an astronomical event occurred that was unlike any other: for the first time, we observed an object that […]

Think there are habitable super-Earths out there? Think again. Here in our Solar System, we have two very distinct types of planets: small, terrestrial, rocky worlds, with thin (or no) atmospheres […]

Time always moves in the same direction, but what if the Universe were contracting? As we step forward in time, a number of things always seem to happen together. Objects […]

And can we devise an experiment to tell, even when we aren’t looking? One of the most bizarre aspects of quantum physics is that the fundamental entities that make up the […]

There are many things on large scales that also appear on small scales. But is the Universe truly a fractal? If you take a look at the structures that form in […]

It’s 92 billion light-years wide after just 13.8 billion years. And that’s just fine. If there’s one rule that people know about how fast things can move, it’s that there’s a […]

It’s that the Universe can be understood at all. Don’t deafen yourself to its lessons. In a nutshell, 2020 has been a unique year in human history. For the first time […]

It might have been Einstein’s greatest blunder, but it’s our leading theory today. One of the most mysterious components in the entire Universe is dark energy, which — if we’re being honest with […]

We have been rejecting science for far too long. We all need to embrace it. For as long as human civilization has existed, those societies that have embraced science have had […]

If the multiverse is real, where does all the energy for it come from? One of the biggest scientific puzzles, even given our knowledge of the Big Bang, is to understand […]

Everyone is entitled to their own opinions, but no one is entitled to their own facts. Everyone is entitled to their own opinions, but no one is entitled to their own […]

Learn how to get the best views no matter where you are. Every year, no matter what else is occurring on Earth or in the heavens, you can rely on two […]

Our ultimate fate depends on something we’ve barely begun to measure. One of the biggest mysteries in all of physics is dark energy. According to our best observations, the Universe cannot […]

And can scientists even agree on what ‘nothing’ means? The more curious we get about the great cosmic unknowns, the more unanswered questions our investigations of the Universe will reveal. […]

How many potentially habitable planets are there? We sincerely don’t know. One of the most compelling scientific goals humanity has set for itself is to find extraterrestrial life: biological activity originating […]

They’re not just a theoretical prediction of quantum gravity. They should be detectable, too. The Universe, if you look at it closely and carefully enough, is fundamentally quantum in nature. […]

No matter how accurately you place two Plinko chips, you cannot count on the same outcome twice. Of all the pricing games on the iconic television show The Price Is Right, […]

As we embrace green solutions, nuclear should absolutely be part of the equation. For thousands upon thousands of years, humans have been harnessing the power of nature to provide energy […]