The James Webb Space Telescope viewed Neptune, our Solar System's final planet, for the first time. Here's what we saw, and what it means.
Halley’s comet only visits every ~76 years, but its meteors arrive twice each year. The most famous comet of all — Halley’s comet — returns to our inner Solar System every ~76 years. Halley’s comet […]
A second Enlightenment would have a far bigger task: Saving civilization itself.
Is "The Garden of Earthly Delights" by Hieronymus Bosch a condemnation of sin or a celebration of hedonism? Art historians still aren’t sure.
Something isn’t adding up, but it isn’t a calibration error. It’s been nearly 100 years since we discovered that the Universe was expanding. Ever since, the scientists who study the […]
50% of stars are in Sun-like ‘singlet’ systems. The planetary nebulae we see just don’t line up. Around 7 billion years from now, our Sun’s life will end. As the Sun […]
Every observation out into deep space is also a look back in time. Whenever you observe an object, you aren’t viewing it in its present state. When one of Jupiter’s moons […]
The so-called "court painter of Silicon Valley" was shaped by her youth in communist Poland but looks forward to a future ruled by celebrity robots.
For northern hemisphere skywatchers, it might just be the century’s best comet so far. Every once in a while, large, icy objects pass through the inner Solar System. C/2014 Q2 (Lovejoy) […]
Every December, the Geminid meteor shower reaches its peak. Its 2021 show will be spectacular, but only if you do it right.
Please stop calling our Sun an "average star." It is philosophically dubious and astronomically incorrect.
Is the multiverse real? It's one of the hottest questions in all of theoretical physics. We invited two astrophysicists to join the debate.
If we want our conclusions to be meaningful, our data had better be robust. When it comes to the Universe, there’s a whole lot that doesn’t add up. All the matter […]
It peaks the nights of August 11–13, but it’s no longer the year’s most reliable meteor shower. Every year, beginning in mid-July, planet Earth commences passing through an enormous debris […]
Don’t miss the summer’s greatest natural sights of all. Some of the natural highlights of our night sky are easy to overlook. Every year, you’ll hear about some of the brightest, […]
After it became clear that the world wasn't 6,000 years old, some proposed that northern peoples had emerged independently from others.
Gravitation, all on its own, can reveal what's present in the cosmos like nothing else.
Like humans, stars die. The James Webb Space Telescope's early images already give us a lot of information about how this happens.
An Oxford scientist claims a Nobel-Prize-winning conclusion is wrong.
Move over, IC 1101. You may be impressively large, but you never stood a chance against the largest known galaxy: Alcyoneus.
Adam Frank, a card-carrying atheist and physics professor, wonders if there might be more to life than pure science.
Amid such suffering, people need some joy.
A reversal in Earth's magnetic field 42,000 years ago triggered climate catastrophes and mass extinctions. Can the field flip again?
A "seafood mafia" is plying the waters between India and Sri Lanka to satisfy China's appetite for an increasingly rare delicacy.
The Leonid meteor shower peaks today. Its parent comet taught us where meteor showers come from. Every year, as Earth regularly orbits the Sun, meteor showers repeatedly recur. While August’s Perseids […]
Presidential gravesites are spread out “democratically” — but this is more by accident than design.
Beavers offer lessons about managing water in a changing climate, whether the challenge is drought or floods
Letting nature's expert engineers lead the way.