The universe doesn't know you're here.

This is Manash's observatory: a small ship, a lot of dark, and a few experiments left running. Scroll to travel, or hold W to warp. Click anything that glows faintly. Not everything out here is on the map.

Drag through every size there is.

Each notch is ten times bigger than the last. Start at an atom. See how long you can keep going before the Universe runs out of edges.

Fall toward it. Watch what happens to the clock.

Near a black hole, time runs slower for you than for everyone far away. Move the slider closer to the event horizon and let both clocks run.

Hold to dive through the throat.

Steer with your pointer. Hold the button, the canvas, or the space bar. When the tunnel fills, you come out somewhere else.

Make your own gravity.

Drag on the canvas to throw a planet. Switch to star mode and click to plant a sun. Raise gravity until orbits tear apart.

Is anyone out there? Do the math.

Frank Drake's equation estimates how many civilisations in our galaxy could be sending a signal. Every number is a guess. Move them and watch the answer swing.

Still here?

There are probably more stars in the observable universe than grains of sand on every beach on Earth. Somewhere in that, there may be someone asking the same questions about the dark.