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Old 01-07-2017, 10:01 AM
Chronos Chronos is offline
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Join Date: Jan 2000
Location: The Land of Cleves
Posts: 74,336
Earth from Mars will be brighter than Mars from Earth, for three reasons: First, Earth is closer to the Sun, and so gets more sunlight to reflect. Second, Earth has a much higher albedo, mostly due to clouds. Third, Earth is bigger. The net effect wouldn't be quite as bright as Venus is from Earth, but it'd still be plenty impressive. Especially since Earth would always be accompanied by another decently-bright point of light, Luna.