Which world are you?
Pick a planet and get a tiny fact.
✦ the observatory · field notes from space ✦
look up.
A small corner for black holes, astronomy, physics, impossible questions, and the parts of the universe that make your brain feel wonderfully tiny.
01 · tiny space station
click around. there are little things here.pick a star.
Choose one of the stars.
If the universe is expanding, what is it expanding into?
Moon phase: waxing crescent
The Moon appears to grow from a thin crescent toward full.
05 · gravity lab
how close are you getting?
Move the dial. This is only a visual metaphor—not a physics simulator—but it gives a feel for how dramatically a black hole changes the scene around it.
comfortably far away35%
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Can anything be lost forever?
That question sits at the center of the information paradox: if something falls into a black hole, what happens to the information that described it? The deeper you go, the stranger the problem becomes.
back to the thinking room →