Is there air on other planets?

Answer 1

I assume that you would test air on another planet the same way you would on Earth. If you are asking how we would procure the sample, then we would most likely send someone or a robot of some sort to retrieve it and bring it to Earth for testing. If we sent a robot, the robot would test it there. Remember that we have already tested things like rocks and sand on other planets, I believe chiefly Mars, through testing equipment in the robot's design. If we were to bring back a sample to Earth then the sample would then be processed in a laboratory. I am afraid that, in the case that you are asking about the types of tests, I am not privy to this knowledge.

Answer 2

There are a wide variety of Atmospheres.

Mercury has virtually no air at all. It's just a barren rock in space.

Venus has a deep, dense, extremely hot atmosphere - by most accounts the nastiest in the entire Solar System. Surface pressure is 95 times as dense as the air on Earth, and so hot that Spacecraft that land there start to melt immediately. In the high Venus atmosphere, clouds of sulfuric acid surround the planet, dissolving any metal that passes through them.

Earth has a warm, pleasant atmosphere. Not too dense. High oxygen content produced by plants makes this the only planet where animals can breathe.

Mars has a very thin atmosphere of almost pure Carbon Dioxide. Pressure is so thin even a jet would simply fall from the sky, the air unable to give it lift. The high carbon dioxide content allows the equator of Mars to almost reach temperatures seen in Antarctica in the dead of Winter. Martian Winters are very severe, dropping to -150 degrees.

Jupiter has by far the thickest atmosphere in the Solar System. It is probably 30,000 to 35,000 miles deep, reaching pressures several million times that of Earth. Jupiter's air is mostly Hydrogen and Helium - very light gases, but it has so much of them that the atmosphere forms a high percentage of Jupiter's great bulk. The Great Red Spot is a storm twice as big as the entire Earth, and Astronomers have watched it raging continuously for the past 400 years. Jupiter is about -120 Degrees.

Saturn's atmosphere is like Jupiter's, only even colder. Temperatures on Saturn rarely climb above -200 Degrees in Summer. Storms whip up winds faster than a Jet Plane, and at six million times the density of Earth's air (some 25,000 miles down), the jet plane would be squashed to the size of a soda can.

It just gets colder at Uranus and Neptune. Their atmospheres are at least 10,000 miles thick, and cold enough that Earth's air would simply snow out and collect on the surface. Their air consists of Ammonia and Methane, deadly poisonous to Humans.

Titan is a moon of Saturn's, but it's the only moon with Air. Unfortunately for us, that air is Methane, and since it's near Saturn, is just as cold. Water ice is frozen so hard it is a mineral on Titan. If there were such a thing as living creatures on Titan, they would think Humans had molten lava for blood. Still, Titan almost looks like Mars at the surface, albeit with very murky, smog filled air. From there, 10 times as far as the Earth is, though, the Sun makes Titan noontime look like 1/2 and hour after Sunset on Earth.

Answer 3

Is there air on planets?

That would depend entirely on your definition of "air." If by air you mean atmosphere - the gases that surround and envelope the surface of a planet- then the answer is yes: there is 'air' on other planets. In regards to terrestrial planets (those with a solid surface) both Venus and Mars, are known to have measurable atmospheres. The air surrounding them however, would be unbreathable for any human, as the combination of gasses that make up the atmospheres of those planets are incompatible with human Biology. Neither atmosphere contains enough oxygen, and in the case of Venus, too much carbon dioxide, for either planet's 'air' to be breathable.

Answer 4

Some planets have atmospheres, like Earth, but the composition of those atmospheres can vary greatly from planet to planet. For example, Mars has a thin atmosphere mostly made up of carbon dioxide. Other planets, like Venus and Jupiter, have thick atmospheres primarily composed of gases like carbon dioxide and helium.