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two worlds, one sun

Thursday,  05/14/15  11:22 PM

From Gerald Vanderleun: two worlds, one sun:


Martian sunset
yes, for reasons not completely understood, the red planet has blue sunsets


Earth sunset
the blue planet has red sunsets

The sun appears a bit smaller on Mars, because it is 50% further away.  That means it receives just 25% of the energy, and since it has much less atmosphere, it retains a lot less of it.

I can't stop looking at the top picture; it is so weird to realize that really exists, it isn't just a scene from a movie...