What is the dark stuff in space?

What is dark matter? Dark matter is stuff in space that has gravity, but it is unlike anything scientists have ever seen before. Together, dark matter and dark energy

dark energy

Another explanation for dark energy is that it is a new kind of dynamical energy fluid or field, something that fills all of space but something whose effect on the expansion of the universe is the opposite of that of matter and normal energy.

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Dark Energy, Dark Matter | Science Mission Directorate

make up 95% of the universe. That only leaves a small 5% for all the matter and energy we know and understand.

What is the dark thing in space?

Over 80% of all matter in the universe is made up of material scientists have never seen. It's called dark matter and we only assume it exists because without it, the behaviour of stars, planets and galaxies simply wouldn't make sense.

What is the deadliest thing in space?

Black holes are obviously terrifying: These crushed remnants of a massive star that exploded as a supernova are so massive that nothing, not even light, can escape its grasp.

Has NASA found dark matter?

Using NASA's Hubble Space Telescope and a new observing technique, astronomers have found that dark matter forms much smaller clumps than previously known.

Are there dark parts of space?

If you get away from city lights and look up, the sky between the stars appears very dark indeed. Above the Earth's atmosphere, outer space dims even further, fading to an inky pitch-black. And yet even there, space isn't absolutely black.

25 SCARY But True Space Facts

What is 96% of the universe made of?

Like the jelly beans in this jar, the Universe is mostly dark: about 96 percent consists of dark energy (about 69%) and dark matter (about 26%). Only about 5 % (the same proportion as the lighter colored jelly beans) of the Universe— including the stars, planets and us—is made of familiar atomic matter.

Can you touch dark matter?

In fact, recent estimates put dark matter as five times more common than regular matter in our universe. But because dark matter does not interact electromagnetically, we can't touch it, see it, or manipulate it using conventional means.

How long will the universe exist?

22 billion years in the future is the earliest possible end of the Universe in the Big Rip scenario, assuming a model of dark energy with w = −1.5. False vacuum decay may occur in 20 to 30 billion years if the Higgs field is metastable.

Is space infinite?

The observable universe is finite in that it hasn't existed forever. It extends 46 billion light years in every direction from us. (While our universe is 13.8 billion years old, the observable universe reaches further since the universe is expanding). The observable universe is centred on us.

Will dark matter exist forever?

A lifetime of a few hundred billion years or longer is still on the table, meaning that it's possible that in the very far future, maybe even while the stars are still burning, dark matter will decay away into normal matter, antimatter, and/or radiation, after all.

What are the scariest space facts?

Do bodies rot in space?

In space we can assume that there would be no external organisms such as insects and fungi to break down the body, but we still carry plenty of bacteria with us. Left unchecked, these would rapidly multiply and cause putrefaction of a corpse on board the shuttle or the ISS.

What Cannot go in the space?

Common items like salt and bread are banned from the International Space Station due to fears that they'll send floating pieces everywhere and potentially damage space equipment or accidentally get inhaled by astronauts. Basic eating, sleeping, and showering habits must also be modified.

What does space smell like?

Astronaut Thomas Jones said it "carries a distinct odor of ozone, a faint acrid smell…a little like gunpowder, sulfurous." Tony Antonelli, another space-walker, said space "definitely has a smell that's different than anything else." A gentleman named Don Pettit was a bit more verbose on the topic: "Each time, when I ...

Why is US dark in space?

In space or on the Moon there is no atmosphere to scatter light. The light from the sun travels a straight line without scattering and all the colors stay together. Looking toward the sun we thus see a brilliant white light while looking away we would see only the darkness of empty space.

What does dark matter do to humans?

The nuclear forces that hold your nuclei and protons together would vanish; the electromagnetic forces that caused atoms and molecules to stay together (and light to interact with you) would disappear; your cells and organs and entire body would cease to hold together.

How will the universe end?

In the unimaginably far future, cold stellar remnants known as black dwarfs will begin to explode in a spectacular series of supernovae, providing the final fireworks of all time. That's the conclusion of a new study, which posits that the universe will experience one last hurrah before everything goes dark forever.

Does space have a end?

No, they don't believe there's an end to space. However, we can only see a certain volume of all that's out there. Since the universe is 13.8 billion years old, light from a galaxy more than 13.8 billion light-years away hasn't had time to reach us yet, so we have no way of knowing such a galaxy exists.

Why can't we see stars in space?

The answer: The stars are there, they're just too faint to show up.

Will time ever go backwards?

Most importantly, time always appears to run forward, never backwards. In other words, there is a perceived arrow of time, and there is a thermodynamic arrow of time, and they both always point in the forward direction.

Will time eventually stop?

The universe will get smaller and smaller, galaxies will collide with each other, and all the matter in the universe will be scrunched up together. When the universe will once again be squeezed into an infinitely small space, time will end.

Is our galaxy endless?

As far as we can tell, there is no edge to the universe. Space spreads out infinitely in all directions. Furthermore, galaxies fill all of the space through-out the entire infinite universe.

Is there dark matter in us?

Even though, at any given instant, there's only around 10^-22 kilograms of dark matter inside you, much larger amounts are constantly passing through you.

Can dark matter hurt us?

And there's a chance that one form of it could behave like tiny, high-speed projectiles, blasting through human flesh like bullets, a new study suggests. In fact, the dark matter impact would generate so much heat that it would tunnel through body tissue as a flesh-melting plasma plume, the study authors reported.

Is light faster than darkness?

Does darkness really have a speed? Nothing's faster than the speed of light. Except the speed of dark. That might sound like the tagline of a grim and gritty movie that's trying way too hard, but it also happens to be true.