Remix.run Logo
Something1234 2 hours ago

What would a 25km resolution of earth look like

JorgeGT 41 minutes ago | parent | next [-]

This is the Earth last Wednesday at 0.25º resolution (roughly 28 km per pixel at the equator): https://neo.gsfc.nasa.gov/servlet/RenderData?si=2050444&cs=r...

brcmthrowaway 32 minutes ago | parent [-]

It's dead.

mikepurvis an hour ago | parent | prev | next [-]

Earth is 12700 km in diameter, so such an image would be 688 pixels across.

Basically you won't be reading license plates but you'd see enough to identify evidence of very large scale construction, and with multiple images over time I bet you could draw even more conclusions.

escapecharacter 39 minutes ago | parent [-]

We could make a license plate big enough that aliens could see it and know we are sophisticated.

prerok 29 minutes ago | parent [-]

Nah, let's just put a big sign "Kilroy was here", so they don't bother with the "mostly harmless" planet.

holoduke 2 hours ago | parent | prev [-]

Enough to see cities