The moon eclipsing the Earth
This is a view one can only get in space. The Orion spacecraft photographed the moon eclipsing the Earth!
On my previous post showing a view of Earth and moon, some people questioned the relative size of the two bodies. So if this picture seems odd to you, since the moon is really smaller than the Earth, think about what happens when people on Earth witness a solar eclipse. The moon is smaller than the sun (by a lot!) but because it is so much closer to us than the sun is, the moon can block the sun in Earth's sky. The two bodies appear as the same size to us, (the moon fits over the sun just about exactly!) because of the distance gap. Likewise in these photos, the moon is so much closer to the camera than the Earth is, that the moon actually seems bigger than the Earth.
For the ultimate demonstration of this, go out some night when the moon is full and hold your hand to the sky. You can cover the full moon with the tip of your thumb, even though your thumb is much smaller than the moon. And that is because your thumb is so much closer to your eye than the moon is.
On my previous post showing a view of Earth and moon, some people questioned the relative size of the two bodies. So if this picture seems odd to you, since the moon is really smaller than the Earth, think about what happens when people on Earth witness a solar eclipse. The moon is smaller than the sun (by a lot!) but because it is so much closer to us than the sun is, the moon can block the sun in Earth's sky. The two bodies appear as the same size to us, (the moon fits over the sun just about exactly!) because of the distance gap. Likewise in these photos, the moon is so much closer to the camera than the Earth is, that the moon actually seems bigger than the Earth.
For the ultimate demonstration of this, go out some night when the moon is full and hold your hand to the sky. You can cover the full moon with the tip of your thumb, even though your thumb is much smaller than the moon. And that is because your thumb is so much closer to your eye than the moon is.