Unless you mean astronauts, then no. Unfortunately, no evidence of alien life, not even bacteria, has been found so far.
Not in our solar system. Nor have any been found elsewhere to date.
The three layers of the Sun's atmosphere are the photosphere, the chromosphere, and the corona. The photosphere is the visible surface where sunspots are found. The chromosphere is a thin layer above the photosphere where solar flares occur. The corona is the outermost layer of the Sun's atmosphere, extending millions of kilometers into space.
The atmosphere is made of gas molecules.
In the earth's atmosphere.
Scientists found evidence in Rodinia in Antartica.
Particles found outside Earth's atmosphere include solar wind particles, cosmic rays, and interstellar dust. These particles can interact with Earth's magnetic field and atmosphere, impacting space weather and the planet's environment.
Yes. Earth's atmosphere is about 21% oxygen. Without it, the vast majority of life we see, including humans, could not exist.
no
no they're found in space...
Rock
yes
The earths atmosphere is denser than the helium found in a baloon therefore the baloon is lighter and is lifted above the denser air located in earths atmosphere. Which is why if you just blow up a baloon with air from your lungs it does not float. It would be the same density as the air outside of the baloon.
Everywhere, at least on earth and in the earths atmosphere.
Nitrogen and oxygen,
The Ozone Layer.
Oxygen is most commonly found in the air of Earths atmosphere.
Ions