It may be so small at great distances that it's almost undetectable. Gravity exists everywhere, even in outer space. As they orbit and fall toward Earth at the same rate as their spaceship, astronauts feel weightless, as if there were no gravity. In outer space, however, there is no ground to push against astronauts. ![]() On Earth, astronauts feel the force of gravity as weight, because Earth's surface prevents them from falling. They are both orbiting Earth, which means they're falling sideways at the same time they're falling toward Earth. Astronauts on spaceships in outer space are affected by gravity in the same way that their spaceships are. The weightless feeling astronauts experience can be explained by their relation to the spaceship they're on. For example, at the orbit of the International Space Station, which is approximately 250 miles above Earth, Earth's gravitational pull is still about 90% of what it is at Earth's surface. To feel like there is no gravity due to distance, the distance must be truly extreme. At extreme distances, the gravity exerted on a particular object might be almost zero, but it will never be completely absent.ĭistance alone doesn't account for the weightless feeling astronauts get, however. However, the effect of that gravity decreases as distance increases. The gravity generated by the Sun, Earth, the Moon, and other planets stretches throughout outer space. Gravity is everywhere…even in space! So what accounts for that weightless feeling that astronauts experience in outer space? There are a couple of factors that explain it.Īnything with mass creates gravity. Those same scientists would actually be quick to correct your misunderstanding. So what's going on here? Why isn't there any gravity in space? ![]() ![]() Scientists will tell you that the laws of physics do indeed apply in outer space, and it's not a lack of air that accounts for the absence of gravity. Why is that?Ĭould it be because there's no air in outer space? Maybe it's because the laws of physics don't apply to outer space? That's because of the powerful force of gravity. Here on Earth, when you drop a ball it falls to the ground. Have you ever seen videos of astronauts in space going on a "spacewalk"? If so, you know that they don't look like they're walking like they do on Earth.
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