1. In four days, the Deep Space 1 spacecraft traveled 621,400 miles (1,000,000 km). To cover that distance in a jet, you would have to fly nonstop for six weeks.
2. NASA's space shuttle pro- gram shut down on July 21, 2011, after more than 30 years of missions.
3. At liftoff, a NASA space shuttle weighed about 4,5 million pounds.(2,041 mt).
4. NASA's space shuttles were the world's first reusable spacecraft.
5. Snoopy, the dog from the Peanuts comic strip, is the safety mascot of NASA astronauts.
6. The International Space Station weighs 861,804 pounds (390,908 kg) and has been continuously occupied by astro- nauts since November 2, 2000.
7. Space doesn't have a tem- perature, only things in space have a temperature.
8. An astro- nomical unit, or AU, is a measurement used to calculate distances in our solar system. One AU is about the distance from the sun to Earth: 92,960,000 miles (149,597,890 km).
9. Earth is the only planet in our solar system with liquid water.
10. Venus is covered in thick clouds that reflect a lot of sun- fight, making it the brightest planet in the night sky.
11. The Big Bang, which formed the universe 13.7 billion years ago, wasn't an explosion but rather an event similar to an enormous balloon inflating.
12. The Barringer Crater in southern Arizona, U.S.A., is a depression three-quarters of a mile (i.2 km) across and nearly 600 feet (183 m) deep created by a meteorite that crash-landed to Earth 50,000 years ago.
13. The universe is filled with visible light and radiation-a kind of light invisible to the naked eye that includes x-rays and radio waves.
14. In our solar system formed about 45 billion years ago-13 planets orbit our home star, the sun. Scientists bave identiied about 300 difierent stars with orbiting planets,
15. The universe is so vast that scientists measure cosmic distances using light years. A Hight-year is the distance that light travels in one year-about 5.88 trillion miles(9.46 trillion km).
16. Venus has the densest atmosphero oioenet in tihe solarsystem; its so dense that if you'tried to walk on the planet's surface, you would be crushed instantly like a soda can.
17. Viewed from Earth, the three brightest objects in the sky are the sun, the moon, and Venus.
18. It never rains on Venus and the temperature never changes-it's always a blistering 864"F (462°C) on the planet.
19. One day on Mercury is equal to 176 days on Earth.
20. Mercury is home to one of the largest craters in the solar system: The Caloris Basin iş about 800 miles (1,287 km) across and was formed when a giant asteroid hit the planet.
21. In star years, the sun, more than four billion years old-is middle-aged.
22. One million Earths could fit inside the sun but the star is considered average-size.
23. The sun, like all stars, is primarily an enormous ball of hydrogen gas. It has no solid surface.
24. While the planets in our solar system orbit the sun, the sun itself moves around our home galaxy, the Milky Way.
25. All the elements in your body are recycled from two previous star explosions.
26. The sun appears white to an astronaut in space.
27. The sun's corona- the halo-like outer layer that can be millions of times hotter than the star's surfaceis visible from Earth only during a solar eclipse.
28. The sun's surface has sunspots- slightly cooler areas that appearas dark blotchesand the largest ones are nearly twice the size of Earth.
29. When people say they were "born under the sign of."they mean that on their birthday, the sun was directly between Earth and their constellation.
30. Martian volcanoes can growto be about 100 times larger than those on Earth.
31. You can't walk on Jupiter, Saturn, Uranus, or Neptune because they have no solid surface.
32. Astronaut Alan Shepard hit three golf balls on the moon while exploring its surface in 1971.
33.Astorm nearly three times the size of Earth has been raging on Jupiter for centuries.
34-Earth has one moon; Jupiter has 50, maybe more; Mercury has none.
35. Saturn, Jupiter, Neptune, and Uranus all have rings, but only Saturn's are vis- ible with a telescope from Earth.
36. Scientists haven't found life beyond Earth yet, but in 2010, a Vatican astronomer announced that the Catholic Ehurch would vvelcome alien life forms.
37. Uranus tilts 98° on its axis, so it appears to be lying on its side.
38. Most of Uranus's moons are named for 76 5.000 AWESOME FACTS
characters in Willan Shakespeare's writings.
39. On Neptune, winds blow more than 1.200 miles per hour (2,000 kph).
40. Neptume's core is hotter than the surface of the sun, but the clouds surrounding the planet are 250E(1m
41. Stas die when they run out of fuel, and the heavier the star, the shorter its life span: Massive stars live for only a few million vears, but lighter stars can live for trillions of years.
42. Al stars come from cosmic nurserles called nebulas- giant hydrogen gas clouds.
43. Heavy stars are blue: lighter stars are red.
44. A supernova is the explosive death of a very large sta Black holes, which have the strongest gravitational pull in the untyerse can form from supernova leftovers.
45. Astronomers have found hundreds of planets orbiting distant stars. Some circle two stars, which means the planets have double sunsets and sunrises.
46. Our home galaxy, the Milky Way, i5 spiral-shaped and contains billions of stars (the sun is merely one of thede) 7. Qur closest galactic neighbor is Andromeda, about twice the size of the Milky Way. The two galaxies are moving toward each other at about 300.000 miles per hourl483.000 kph) and will collide in a few billion years.
48. Astronauts grew potatoes on the space shuttle.
49. The universe is expanding-literaly.cveating more spaceat an ever-increasing speed.
50. Some scientists believe that there are other universes, but even if these exist we can't commumicatre with or travel to them.
51. On several missions, NASA has launched into space LEGO figurines resembling the astronomer Galileo Galiei and the Roman god Juniter and his wife Juno.
52. Comets are leftovers from the cre- ation or our solar system about 4-5 billion years ago, and they consist, of sand Jce and carbon dioxide.
53- A comet's tail, which always points away from the sun, can be hundreds of millions of miles long,
54. The brightest avolosionsin the universe are called gamma ray bursts; these occur when a black Toie is born.
55. The sunset on Mars appears blue.
56, In s969, U.S. astronaut Neii Armstrong became tho first person to walk on the moon.
57. The Kuiper Belt is a region beyond Neptune that's home to comets, icy objects, and the dwarf plänets Pluto, Haumea, Makemake, and, sometimes Eris.
58. In 2006, Pluto Smaller than Earth's moon-was demoted to a dvarf planet
5e. The coldest, farthest. obiect found in our solar system is the dwwarf planet Eris. It orbits the sun once every 557 years,
6o. Because ofit estimated 661 million tons (600 million MT) of hydrogen even second osubemassive black hole is millions or even billions of times as massive as the sun.
63. Scientists crashed a'rocket into the moon in October 2o0g to study its surface. The impact kicked up water vapor and ice, proving the moon is at least partly made of water s has 42 years of sunshine folloved by 42 years of darkness.
61. The Sun burns an inot cheese) 1931. astronomers have discovered more than 550 exoplanets-worlds outside our :
65. More than half a million kids and adults have attended Space Camp in Huntsville, Ala- bama, USA, since the program began in 1982.
66. Most galaxies are spiral-shaped, like the Milky Way. But galaxies can take other forms, including the shape of an egg, toothpick, or ring.
67. Mars has two moons, Phobos and Deimos, and both are shaped like a potato.
68. Mars was named by the Romans after their god of war. The Egyptians called the planet "Her Desher," wtrich means "the red one."
69. On April s 2010, four female astronauts-three American, one Japanese-gathered aboard the Interational Space Station and set the record for most women in orbit at once.
70. Uranus shares its name with the Greek god of the sky, thoughe the astronomer who discovered the planet in 1781 wanted to name it after King George III.
71. A Car-size asteroid enters Earth's atmosphere roughly once a year, but it burns up before it can make impact.
72. NASA monitors more than 1,200 Potentially Haz- is ar PHAS,witich are rocky bodies orbiting Earth closely enough to pose a threat of timpact.
73. The Asteroid Belt, which lies between Mars and Jupiter, is home to most of the solar system's asteroids.
74. In 2005a Japanese spacecraft landed on an asteroid.
75. Asteroids tend to have unusua names: Mr. Spock, Donald Duck, Santa, and Yes, to name a few. 76. Asteroids range in size from 592 miles (952 km) to 0.6 miles (1 km) across.
77. About 150 of the roughly 550,000 known asteroids have moons orbiting them.
78. According to the International Astronomical Union, the definition of a planet is an object that orbits the sun, is nearly round, is not a moon, and steers clear of other nearby planets.
79. If you weigh 100 pounds (45 kg) on Earth, you' weigh a fraction of a pound-o.01 pounds (0.005 kg)-ona comet, and 38 pounds(17 kg) on Mercury.
80. On Venus, the sun rises in the west and sets in th N the opposite as on Earth.
81. Shooting stars are really meteors, space material that heats up and burns bright once it enters Earth's atmosphere and severalcan be seen every hour on any given night.
82. Meteorites are meteors that don't burn up completely in Earth's atmosphere and make impac with the planet's surface. The largest meteorite ever found on Earth landed in southwest Africa and weighed 119,000 pounds (54.000 kg).
83. In 195. an eight-pound (3.6 kg) mėteorite crashed through the roof of an Alabama woman's house.
84. About 1,000 to 10,000 tons (g07 to 9,072 MT) of meteori naterial falls en Earth every day, but most is in the form of tiny particies, or space dust.
85. On the asteroid Vesta, there isa mountain three times as ta as Mt. Everest,
86, Saturn's moon Enceladus is covered in 330 feet (100 m) of snow.
87. Jupiter's moon Europa has a surface layer of ice that scientist believe covers a giant ocean that could harbor alien life.
88. Hubble, aspace telescope the length of a school bus and the weight of two elephants, has bee orbiting Earth at 17,500 miles per hour (28,160 kph) since 1990. It has taken hundreds of thousands of images of distant planets, stars, and galaxie
89. Astronauts eat tortillas in space because they don't crumble, so nothing can get stuck in the equipment.
90. Astronauts don't bring dirty laundry hom with them; they place the clothes in a bag that burns up in Earth's atmosphere during re-entry.
91. Aştronauts working aboard the International Spar Station get weekends off. Popular pastimes include racing through the station, doing somersaults and backflips, and simply staring out the windows at spac
92. Mayan astronomers made detailed observations of Venus more than 1300 years ago.
93. The word "planet" comes from the Greek word "plahete which means anderer
96. The Cassini spacecraft took less than seven years to travel nearly two billion miles (3.2 billion km) to Saturn. To cover th distance bcar voA ould bave to drive 62 miles per hour(100 kph) for 3,653 years.
95. There are six American flags planted on the moon,
96. A 19 Euntry from ovaning planets, stars,oF any other natural objects in space.
97.If you could fly a plane to Pluto, the tr 48MP QUAD. CAMERA storm clouds the size of Earth.
99. The ancient Greeks called the sun "Helios" and the ancient Roma REDMI NOTE 8 inter NOuld take more than 800y Called it "Sol"
100. Neptune was discovered in 1846 and didn't complete an orbit of the sun until 201
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