Infinity-Science

Nebula is an interstellar cloud of dust, hydrogen gas and plasma. Some nebulae are formed as a result of supernova explosions.

Because the speed of the Sun moves at, solar eclipse can last at most 7 minutes and 58 seconds.

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Pluto was discovered in 1930 by astronomer Clyde Tombaugh.

Jupiter's moon Ganymede is the the largest moon in the solar system, even bigger than the planet Mercury. Saturn's moon Titan is the second largest moon, and Earth's moon is the fifth largest.

Mu Cephei (also known as the Garnet star) is so large that it's surface would be between Jupiter and Saturn.

An annual eclipse occurs when the apparent size of the moon is smaller than that of the sun, and the moon does not block the sun from our view. This occur because the Moon's orbit is elliptical, and so the Moon's distance from the Earth varies. When the moon is further away from the Earth, it appear to be smaller.

Mars has extremely low temperature, and frequent out of this world dust storms that are the biggest in our solar system.

The sun is about 149 million kms (93 million miles) from Earth, yet it's 270,000 times closer than the next nearest star, which is 4.3 light years away.

In 1974, Stephen Hawking showed that black hole evaporate. According to quantum mechanics, pairs of virtual particles are constantly being created and then annihilating each other near black holes (as well as everywhere else in the universe). On occasion, one of the pair of particles ends up inside the black hole's event horizon, and so cannot annihilate its pair, which is forced to become a real particle. This results in slight increases in total mass-energy of the outside universe, and that mass-energy has to come from black hole, whose mass-energy is slightly decreased. Eventually (after an incredibly long time fro normal sized black hole) the black hole would disappear in explosion of particles and energy.

Pluto is not a planet, because it does not have a fixed orbit and it's orbit comes in between the orbit of another planet (Neptune).

Even though Mercury is the closest planet to the Sun, temperatures reaches -280 degree F. Why? Since Mercury has almost no atmosphere there is nothing to trap heat near the surface. So, the dark side of Mercury (the side facing away from the Sun) is very cold.

Saturn's moon Titan is the second largest moon in the solar system, being 50% larger than our moon. It is the only place known other than Earth where liquid exists on the surface in the form of lakes and rivers.