So let's say you spot a rogue black hole bearing down on Earth and bent on destroying us all. How do you tell other astronomers where to find it? Let's talk celestial coordinates!
Aw, Universe, why do you have to be this way?
We've been suspicious for a while that the expansion of the cosmos is doing weird stuff, and new results from JWST seem to confirm it.
Sometimes, the simplest questions lead to the most profound of results.
For example, a child might ask, "Why is the sky dark at night?" Astronomers asked that for centuries, but it took a poet to answer it. And you'll never guess which one…
What's the roundest human-made object ever made? One of Einstein's most bizarre predictions led to a pretty dang spherical ball bearing because of course it did.
[also, more on kicking Elon's Nazi bar to the curb]
Getting a good full moon shot with a phone is impossible. I just shot this, and it's too bright in a dark background. But! The light reflects inside the camera, creating a fainter ghost image. That has features you can see!
