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Neptune's atmosphere is made up of many gases—some very toxic— such as methane, ethane, hydrogen, helium and ammonia, which give the planet a deep blue color. ---- Answer provided by ... /For%20Kids/KidstoSpace.html Click here Category:Kids To Space Category:Kids To Space - NEPTUNE

... down here on the Earth, the Sun's light is spread around by the atmosphere, and so the sky looks blue. Where there is no atmosphere, this cannot happen, so the sky looks black. If you stand on some planets, the sky has funny colors because the atmosphere is different from ...

We do not know yet whether that is true. We have only just begun to develop the technologies to check. Life grows in ... will keep us humans busy for a long time exploring. If this "pale blue dot" called the Earth is the only place in the vastness of space which has living things, will ...

The eighth planet is about 30 times further from the Sun than Earth. ---- Answer provided by Laura Peckyno & Robert ... /For%20Kids/KidstoSpace.html Click here Category:Kids To Space Category:Kids To Space - NEPTUNE

... warm and cold in space. Temperature is a measure of heat energy. In space there is no air so heat transports by radiation—for example, you feel warmth when you hold your hand near a red-hot stove. The Sun is the major source of heat in space. The Earth is also a major source of heat in space, since it ...

... , was liquid oxygen (LOX) and RP1, a special grade of kerosene. Energy is measured in joules. One joule is equal to one Watt for one second. Imagine a one Watt light bulb ... joules, equal to half the mass multiplied by the velocity squared. For example, one joule is the energy in a two kilogram mass moving at one meter per second. Imagine a two kilogram hammer swung at one meter per second. Mega-joule is a million joules. This LOX/RP1 mixture has a specific energy of 4.5 mega ...

... to minimize the amount of precious air lost from the ISS to space. Air loss is further reduced by pumping most of the air in the lock back into the ISS ... airlock that help replenish any air lost. The final act in this hours-long drama is opening the hatch. After a final check for leaks in their suits—spacewalkers are always checking for leaks—the remaining air in the crewlock—about 5 psi is vented overboard through a valve on the outer hatch. All hatches on the ISS operate ...

... the two masses and the square of the distance between them. So, for example, Jupiter is a high-mass planet with a large diameter and has a relatively large gravitational force ...

... Earth's protective atmosphere—begins at a height of 62 miles above Earth and is called the Karman Line, named for the Hungarian aeronautical pioneer Theodore Von Karman who helped ...

... produced by the conversion of hydrogen into helium in the core of the Sun, which is called fusion, replenishes all the heat and energy that the Sun gives off into space ...

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