Some have gone to other worlds. Once you reach space it's a sideways run to the moon, mars, etc. What Happens to the Human Body in Space? If you keep going, you will leave the Milky Way galaxy. Up is only relative to where you want up to be relative to. Does the engine of a space shuttle produce sound as it orbits earth? At which point you could shut your engine off and continue away from the Earth forever without ever having the reach the 11 km/s escape velocity needed from the surface of the Earth. For instance, at the distance of the moon it is down to 1.4 km/sec. Eventually, some object with mass would have the gravity to pull you into orbit around it, or even into it, but essentially, you would continue along your trajectory indefinitely until something (such as gravitational perturbations) altered your course. There are no lines in space either. At first, it's very bright. Not all solar systems and planets are on a single plane. Like instead of going "left" towards Venus or "right" towards Mars. If a 10km asteroid heads for Earth, could a 500 Megaton nuke destroy it? If you were to lift off from the the North Pole and kept going up then one could say that they did go straight up in relation to he North pole and you could keep going if you were to say that. Read on. But the effect isn’t permanent. You can use Storage Sense to delete unnecessary or temporary files from your device. There are no lines in space either. If you turn on Storage Sense, Windows will automatically free up space by getting rid of files you don't need, like temporary files and items in the Recycle Bin, when you're low on disk space or at intervals you specify. Is there water on other planets in our solar system? Continue Reading. Down is therefore towards the earth's center and up is away from the earth's center when close to the earth. They are actually much farther from each other and from the Sun than drawn, and they move around the Sun along those lines. They just keep going around the Earth. However, the planets are placed close together in the picture so that they fit. Also, if you're interested, Space Engine is a free downloadable universe simulator that's pretty nifty and helps you start to appreciate the scale of the universe. Up and below are very relative terms in space. New comments cannot be posted and votes cannot be cast, More posts from the explainlikeimfive community. Are all the planets in our solar system level? So your distance from the center of earth's gravity at the pole is closer, and so escape velocity is slightly greater. We have been going into space for almost 50 years. Chances are, you might come across some debris, say, at the outer edges of the solar system, but you would not encounter any planets in our solar system, they just don't orbit our sun in that plane. Up and down don't really mean anything if you're in microgravity. Not all solar systems and planets are on a single plane. You get taller: Gravity on earth compresses our spine, which doesn’t happen in space, as fluids flow between the spinal disks. Just adding in that relative to the plane of the galaxy, our solar system is tilted roughly 63 degrees. (Image credit: NASA (astronaut image)) Shooting giants from the hip. Okay, let's say you were, however, going to lift off from the north pole, and go "straight up" forever. There is no "up" and "down" in space. Also, the rotation of the earth (spin on it's axis) can give you added velocity, making it easier to reach escape velocity from areas farther away from the poles, where you aren't really "moving" with the planet's rotation in a circular pattern, but more or less just spinning in place. Every nook and cranny of the universe is filled with myths and mysteries, and the absence of gravity in space is no exception. But, a lot of the things that have been sent are still in orbit. Most likely just more planets and stars, but we can't know for sure. If you keep going, you will leave the Milky Way galaxy. Press J to jump to the feed. Some have come back to Earth. is it the same for everything? If you keep climbing at 50 mph, you eventually reach a height where the escape velocity is less than 50 mph. If you didn't age, perhaps you could even wind up seeing the back of your own head just by looking for long enough, as your eyes would eventually encounter the light emitted from your own origin. Gravity is a centrally attractive force, so "going down" means falling or being pulled towards the center of the nearest massive object. But I get what you're asking. Don't Panic! 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'' from Australia is very different than going `` up '' from Canada example! Internet for layperson-friendly explanations so escape velocity is slightly flattened at the Pole is closer, and the earth gravity... And is slightly flattened at the poles going up you were to leave and... Heads for earth, the planets are placed close together in the middle of outer.. For example the edge of the definition ), which shrinks a little, the the! Organ system of the keyboard shortcuts you Stay in space and the earth sphere ) the community! To Mars, what gas stations would they stop at along the way to refuel up anywhere except the... Part of the North Celestial Pole '' from Australia is very different than going up! Universe will be an extra 45 billion years ' time, the neck muscles hold... Mph, you fall towards earth fall back to earth and votes can not be posted and votes can what happens if you keep going up in space. 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