Question: Is There An Up And Down In The Universe?

What would happen if you fell out of a spaceship?

You’d possibly be spinning.

In space, no kicking and flailing can change your fate.

And your fate could be horrible.

At the right angle and velocity, you might even fall back into Earth’s atmosphere and burn up..

How much of space is empty?

99.9999999 percentMaybe you have a lot of friends, or an important job, or a really big car. But it might humble you to know that all of those things – your friends, your office, your really big car, you yourself, and even everything in this incredible, vast Universe – are almost entirely, 99.9999999 percent empty space.

What percent of the universe is visible matter?

five percentOnly five percent of the universe is visible. What is the rest made up of? The visible universe—including Earth, the sun, other stars, and galaxies—is made of protons, neutrons, and electrons bundled together into atoms.

What is outside the universe?

Astronomers think space outside of the observable universe might be an infinite expanse of what we see in the cosmos around us, distributed pretty much the same as it is in the observable universe. … After all, it doesn’t make sense that one section of the universe would be different than what we see around us.

Are there other universes?

In fact there are almost too many other potential universes. Physicists have proposed several candidate forms of “multiverse”, each made possible by a different aspect of the laws of physics. The trouble is, virtually by definition we probably cannot ever visit these other universes to confirm that they exist.

Is dark matter everywhere?

Dark matter, to the best of our knowledge, is out there in all directions. It may be invisible to our eyes, but we can feel its gravitational force. It passes through all the matter in the Universe, including human beings, as though it weren’t there at all.

Why is it dark in outer space?

The daytime sky is blue because light from the nearby Sun hits molecules in the Earth’s atmosphere and scatters off in all directions. … At night, when that part of Earth is facing away from the Sun, space looks black because there is no nearby bright source of light, like the Sun, to be scattered.

Does space have a smell?

“Space,” astronaut Tony Antonelli has said, “definitely has a smell that’s different than anything else.” Space, three-time spacewalker Thomas Jones has put it, “carries a distinct odor of ozone, a faint acrid smell.” Space, Jones elaborated, smells a little like gunpowder. It is “sulfurous.”

Does the universe have a top and bottom?

Has the universe a top and bottom? … Our 4D universe does indeed have a top and bottom. The bottom (T=0) was the Big Bang. Space and time curved in, not to a point but to a parabola.

Is there a north and south in space?

There is no north south east west, or up and down in space. north, south, east, and west refer to the Earth’s magnetic or geographic poles, irrelevant in space. … This is a convenient way of locating things in space and defining directions in space, but is arbitrary because we live on Earth.

Do directions exist in space?

The universe isn’t spinning or stretched in any particular direction, according to stringent tests from scientists in London. Three friends, planets and Milky Way from a South Carolina beach, by Shreenivasan Manievaannan of Shreeniclix Photography.

Do you age in space?

So depending on our position and speed, time can appear to move faster or slower to us relative to others in a different part of space-time. And for astronauts on the International Space Station, that means they get to age just a tiny bit slower than people on Earth. That’s because of time-dilation effects.