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no Mars does not go through phases as seen from earth.
Apparently, yes.
-- It'll appear smaller in the sky. -- It'll take longer to go through a full cycle of phases. -- High tides on Earth will be lower. Low tides on Earth will be higher.
to me i think we observe them to know which is going to happen or to notice when an eclipse is going to happen
Yes
Yes.
everyone would DIE! surely..
Every month as the Moon cycles through its phases it appears to change shape. The Moon always has the same spherical shape, but stargazers on Earth see different fractions of the dark and illuminated portions of the Moon as the Moon orbits Earth. The common urban myth that Earth's shadow falling on the Mooncauses lunar phases is incorrect.
No, it has nothing to do with the shape of the Earth. Phases of the Moon are caused by the relative positions of the Sun, the Earth and the Moon. When seen through a telescope, Venus presents similar phases. However, the circular shape of Earth's shadow that is projected on the Moon' surface during a lunar eclipse is evidence that the Earth is round.
From the perspective of the earth, the most apparent objects that go through phases are the moon, Venus and Mercury
when the moon revolves around the earth the sun reflects his light to the moon which is shown to the earth in different phases as it revolves.
Yes.