Has anyone ever passed through the Earth's exosphere?

The exosphere is the uppermost region of Earth's atmosphere as it gradually fades into the vacuum of space. Air in the ... Most gas particles in the exosphere zoom along curved paths without ever hitting another atom or molecule, eventually arcing back down into the lower atmosphere due to the pull of gravity. read more

So if the exosphere extends some 800 miles above Earth and it is accepted by the scientific community to be part of Earth’s atmosphere then that means the International Space Station is still within Earth’s atmosphere – positioned within Earth’s upper atmosphere called the thermosphere (the Earth’s atmosphere directly above the mesosphere and directly below the exosphere). read more

Yes. Lava is magma at Earth's surface. Go Hawaii when Mt. Kilauea is erupting and you can have close personal relationship with Earth's magma. Sarcastic questions deserve sarcastic answers. Ignorance can be VERY fatal. read more

It has a lower boundary defined as the point at which temperature begins to be nearly constant as you continue outward from the Earth. There is no widely-agreed-upon definition for where the exosphere ends, however. read more

There is no exact place where Earth’s atmosphere ends; it just gets thinner and thinner, until it merges with outer space. The exosphere is considered the outermost layer of the Earth’s atmosphere. The exosphere goes from about 400 miles (640 km) high to about 800 miles (1,280 km). read more