Long assumed to be a devoted vegetarian, ancient sloths were fine with some meat.
Like witchcraft, "racecraft" refers to a kind of magical thinking — one that treats race as if it were scientifically meaningful.
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 […]
The World Air Quality Index shows how clean your city’s air is, in real time.
In some Asian countries, what's in your blood may influence your social status.
For the cosmos, it’s all too easy being green. Stars come in a wide variety of colors, but never green. Stars form in a wide variety of sizes, colors and masses, […]
There are billions of potentially inhabited planets in the Milky Way alone. Here's how NASA will at last discover and measure them.
Wordle activates both the language and logic parts of our brain and give us a nice boost of dopamine, whether we win or lose.
With lizard-like eyes and sharp teeth, this strange creature was likely smaller than your thumb.
New studies find the interstellar comet 2I/Borisov is the most "pristine" ever discovered.
The Universe’s idea of a ‘typical star’ has changed dramatically over time. When you look out at the Universe today, you’re not seeing it exactly as it is at one particular […]
People underestimate their opponent’s capacity to feel basic human sensations. We can short-circuit this impulse through moral reframing and perspective taking.
Techshot's 3D BioFabrication Facility successfully printed human heart tissue aboard the International Space Station.
There are pros and cons to owning a pet as a marginalized individual.
And after years of mystery, we finally know where they come from. Here on Earth, thunderstorms and accompanying lightning strikes represent tremendous releases of energy. It was way back in 2011 […]
Even though no human has stepped foot on the Moon's surface in 50 years, the evidence of our presence there remains unambiguous.
In 2011, a bizarre, green object was discovered. At long last, we finally understand why. One of astronomy’s biggest surprises came in 2007, when a mysterious green object was found. […]
How to deal with "epistemic exhaustion."
The Twin Jet nebula, shown here, is a stunning example of a bipolar preplanetary nebula. At the center, a dying star is in the final stages of life where it […]
Move over, IC 1101. You may be impressively large, but you never stood a chance against the largest known galaxy: Alcyoneus.