10  Amazing facts about Space*🌌

 1.NASA has recorded eerie space "sounds."

NASA uses a technique called data sonification to take signals from radio waves, plasma waves, and magnetic fields and convert them into audio tracks to "hear" what's happening in space. Example for that technique : The exoplanets discover Kepler Space Telescope records data as light and NASA can convert into sound.

 2.Space is full of "space junk."

Space is full of junk like used rocket parts and dead satellites. These objects continue to orbit Earth at about 17,500 mph - 10 times as fast as a speeding bullet.

 3.The Apollo astronauts' footprints on the moon could last up to 100 million years

Moon rocks erode at a rate of 0.04 inches every 1 million years. This means that the astronauts' footprints on the moon from the Apollo mission in 1969 could be there for 10 to 100 million years.

 4.Space isn't always cold. In fact, it can get pretty hot. 

In the darkest parts of space, temperatures can reach -454 degrees Fahrenheit. But if you're orbiting near Earth in the sunlight, space is a toasty 250 degrees Fahrenheit. Astronauts' spacesuits are white to reflect the heat they encounter while floating above the Earth.

 *5.Sunsets on Mars are blue.*The Curiosity Mars rover's first color photograph of a sunset in 2015 revealed a surprising twist — sunsets on Mars are blue.

 6. A year on Venus is shorter than a day there.

Venus spins very slowly in the opposite direction of Earth — 243 Earth days for a full rotation. But it only takes 225 days to go around the sun because it's so close to it. Therefore, a year on Venus is shorter than a day.

 7.Outer space isn't empty space.

Besides the obvious stars and planets, you might think that the surrounding space is completely empty — a perfect vacuum devoid of all matter. It's true that space is a vacuum, but it's an imperfect vacuum because it contains a low density of particles like clouds of interstellar dust, space plasma, and cosmic rays.

 8.The International Space Station (ISS) is the size of a football field.

The International Space Station is 357 feet long, just three feet less than an American football field. It weighs 925,000 pounds and is the largest single human-made structure to ever enter space.

 9. The sun makes up 99.8% of the solar system's mass.

The mass of the sun is 1.989 × 1030 kilograms — 99.8% of the entire solar system's mass. The rest of the solar system is a speck of dust in comparison. 

 10.The center of the Milky Way galaxy has tens of thousands of black holes.

According to a new study, there are tens of thousands of black holes at the center of the Milky Way galaxy.