Why Dark matter is called dark?

✨Dark matter is called dark because it does not appear to interact with the electromagnetic field, which means it doesn't absorb, reflect or emit electromagnetic radiation, and is therefore difficult to detect✨

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#Fact @AstroMechanics

How we know that dark matter exists?

✨Dark matter is known to exist through the gravitational effect it exerts on visible matter in the universe✨

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✨The scientific term whereby one galaxy gravitationally disturbs another is called galaxy harassment✨

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#AstroWallpaper 👉 @AstroMechanics

#FutureOfPlanets
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✨The Big Bang happened everywhere at once.

The universe has no center or edge, and every part of the cosmos is expanding. That means if we run the clock backward, we can figure out exactly when everything was packed together—13.8 billion years ago.Because every place we can map in the universe today occupied the same place 13.8 billion years ago, there wasn't a location for the Big Bang: Instead, it happened everywhere simultaneously✨

#BigBang
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✨Our solar system travels through the Galaxy at 251 kilometres per second, as it orbits around the Milky Way’s centre. The Milkyu Way is so vast that even at this speed it takes 225 million years to do one orbit✨

#Fact
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✨The Strawberry Moon, the full moon of the month of June, rises over the ocean on Narrawallee Beach✨

#Phenomenon
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#Alien @AstroMechanics

Dark Energy

✨Dark energy is the name given to the mysterious force that’s causing the rate of expansion of our universe to accelerate over time, rather than to slow down. Dark energy does behave like Einstein’s anti-gravity force, but its nature and origin remain unknown. Recent observation of supernova have produced a value for an acceleration that implies a universe that is about 68% dark energy. One explanation for dark energy is that it is a property of space✨

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#Olympus @AstroMechanics

✨The sun gets hot because it is so big that the pressure in its core is so tremendous – enough to force the nuclei of hydrogen atoms to fuse to make helium atoms. This nuclear reaction is like a gigantic atom bomb and it releases huge amounts of heat✨

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#Mysterious @AstroMechanics

#AstroWallpaper @AstroMechanics

✨​​Venus is the only planet in the solar system, which turns counterclockwise. This in theory, there are several studies. Some astronomers believe that such a fate befalls all the planet with a thick atmosphere, which first slows down and then spins a celestial body in the opposite side of the initial treatment, while others suggest that the reason was the drop on the surface of Venus Group of large asteroids💫

#Venus
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✨The Moon causes not only the sea to rise as the Moon passes over it, but the land rises and falls too, by as much as 30 cm each day✨

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✨A planet is round because of gravity. A planet's gravity pulls equally from all sides. Gravity pulls from the center to the edges like the spokes of a bicycle wheel. This makes the overall shape of a planet a sphere, which is a three-dimensional circle✨

#PlanetFact
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✨The most difficult problem to any future human mission to Mars is to ensure reliable radio communication because Sun often blocks communication between Earth and Mars✨

#Fact
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✨The distinction between dwarf planets, asteroids, meteoroids and comets: simplistically, asteroids are relatively small inactive bodies composed of rock or metals; dwarf planets are the largest asteroids; meteoroids are smaller particles of asteroids (called meteors or "shooting stars" when they burn up in the atmosphere, and meteorites if they manage to penetrate to the Earth's surface); comets are mainly composed of dirt and ices rather than solid rock or metal, and tend to have dust and gas tails when close to the Sun✨

#Fact
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