this post was submitted on 17 Nov 2023
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[โ€“] KISSmyOS@lemmy.world 3 points 2 years ago (1 children)

I find it fascinating how astronomers can figure out the amount of ice and rock, the planet's history, its temperature, etc. just by pointing a telescope at it and basically measuring the color of the light.

[โ€“] niktemadur@lemmy.world 4 points 2 years ago

measuring the color of the light

All nine blurry pixels of it.

[โ€“] Sigmatics@lemmy.ca 2 points 2 years ago

Not to mix to with Eros