Describe what Earth would look like without an atmosphere. What would the surface look like? Why?

The first
thing one would notice if Earth had nowould be an absence of life. The Earth would have no way
to keep warm or cool enough to support life, so the Earth would be barren of all of the life
forms that inhabit it now. Furthermore, there would be no oxygen required to sustain life on
Earth. The sun's rays would also directly hit the planet, covering it in radiation. There would
be no oceans, as all the water would all boil off.

The Earth would also be
pockmarked by asteroids. Each year, hundreds of asteroids burn up in the atmosphere before they
can hit the Earth. Occasionally one makes it through with the potential to cause damage, such as
the one that hit off the Yucatan Peninsula 65 million years ago (which is presumed to have
killed the dinosaurs), but this is rare. Without an atmosphere, the Earth's surface would look
similar to that of the Moon.

Like other planets, Earth may have volcanoes
spewing gasses, but there is no guarantee that they would ever contribute to an atmosphere.
There would also be no weather patterns or cloud cover. Earth's atmosphere controls much of
Earth's weather, as weather is used to stabilize atmospheric energy.