it starts roughly 10 miles up.
The atmosphere is from the area just above the ground to 1200 miles above ground
The stratosphere isn't on earth's surface, the troposphere is. The stratosphere is the next level of the atmosphere from the troposphere. the atmosphere is about 600 miles or kilometers above earth's surface.
The moon is far beyond the earth's atmosphere. The boundary between the atmosphere and outer space is generally considered to be an altitude of 62 miles, although there is a noticeable effect on spacecraft as high as 75 miles. The average distance from the earth to the moon is 233,000 miles.
Earth's closest neighboring star is the sun; about 93 million miles away.
The boundary between Earth's atmosphere and outer space is defined by the Kármán line, which is at an altitude of 100 kilometers (62 miles) above sea level. To officially leave Earth's atmosphere and reach space, you would need to travel at least this distance vertically.
Earth's closest neighboring star is the sun; about 93 million miles away.
We think of the atmosphere as a big ocean of air around us, but the air around us is very thin relative to the size of the earth. The "thickness" of the atmosphere or the distance between the earth's surface and the "top" of the atmosphere is not exactly measurable. With increasing altitude the atmosphere fades slowly away into space. Therefore it is not easy to tell exactly how high the atmosphere really is. Perhaps 50 kilometers. (see answer "how far is it to outer space?")
The size of the US, in cubic miles, depends on how deep into the earth and how far up into space is considered to be part of the US.
It's approximately (3,963)miles down to the earths core.
Earth's atmosphere extends up to about 560 kilometers (350 miles) above the Earth's surface. The outermost layer, called the exosphere, gradually transitions into outer space.
250000 miles
The Earth's atmosphere extends about 480 km (300 miles) from the surface, but the majority of its mass is concentrated within the first 16 km (10 miles), known as the troposphere. Beyond the atmosphere lies outer space.