103 Super Cool Facts About Space [Free fact Cards]

Hey, space cadets! Are you ready to blast off on an adventure that’s out of this world? Space is like the biggest playground you could ever imagine, filled with stars, planets, and even galaxies! It’s so big that it’s beyond what anyone can see. So, let’s put on our astronaut helmets and zoom through these cool facts about space that are sure to blow in your mind!

First, let’s talk about stars. When you look up at the night sky, you see many tiny twinkling lights. Every single one of these is a star, and they’re not tiny at all; they’re huge! Our sun is a star too, and it’s the closest one to Earth. But even being the closest, it’s still super far away!

Have you ever wondered if Earth is the only planet out there? Nope! It’s just one of eight planets in our Solar System, and they all orbit, or go around, the Sun.

Some planets are rocky, like Earth, while others are made mostly of gas. And beyond our Solar System, there are even more planets. Scientists call these exoplanets, and they’re always looking to find new ones.

And here’s something really amazing: space is always growing! That’s right, the universe is getting bigger and bigger every day. It’s expanding, just like a balloon when you blow air into it. So every time you look up at the night sky, you’re looking at space that’s a little bit larger than it was the night before.

Are you ready to strap in and learn more about space? There’s so much to explore, from the moon’s craters to black holes that gulp up light! So, let’s get set to zoom past the stars and discover all the wild and wonderful things that make space so exciting!

Don’t forget to download your facts about elephant cards to add to your growing collection of fact cards! Have you grabbed your Interesting Facts About Penguins cards yet or your Interesting Facts About Apples cards? Be sure you do!

Best Facts About Space

1. Astronauts grow taller in space because of the lack of gravity, which expands the disks in their spines and makes them taller.
2. There are five officially recognized dwarf planets in our solar system: Dysnomia, Nix, Charon, Hydra, Namaka, Hi’ iaka .
3. There are 500 extrasolar planets have been found in space.
4. The temperature in space is about -270.45 degrees C.
5. The planet Saturn has 82 known moons, and more are being found.

6. Mercury’s temperature varies from -280 degrees F on its night side to 800 degrees F during the day.
7. Uranus’ blue glow is due to the gases in its atmosphere.
8. There is a planet called “55 Cancri e”, a Super-Earth” believed to be covered in graphite and diamonds.
9. There is dark matter in space.
10. Extrasolar planets are located outside the solar system. They come in different sizes.

11. Neuron stars are the densest and smallest stars in the universe. They can rotate up to 60 times per second after they are born from a supernova star explosion.
12. The solar system’s boundary ends in a spherical cloud known as the Oort cloud.
13. When the moon is half-full, it is only 10% as bright as the full moon.
14. A dwarf planet is a planet-like object that does not dominate the neighborhood of its orbit.
15. There are more stars in the universe than grains of sand in all the earth.

16. Most galaxies have a black hole.
17. Exoplanets are planets that orbit other stars.
18. If you scream in space, no one can hear you.
19. Jupiter, Saturn, Uranus, and Neptune have all been observed having light shows known as auroras.
20. Uranus is often called “the sideways planet,” and it orbits the Sun on its side. It is tilted about 98 degrees.

21. No sound exists in space because molecules are too far apart to transmit sound.
22. All planets in the solar system have been visited by uncrewed spacecraft.
23. Mars has a canyon system that is larger than the Grand Canyon.
24. Saturn’s moon, Enceladus, is the most reflective body in the solar system.
25. The Sun is 400 times larger than the Moon and 400 times as far away, making both objects appear the same size in our sky.

26. Mercury is the closest planet to the sun.
27. The Sun can fit one million Earths inside it.
28. Space does not begin at a specific altitude above Earth.
29. Massive stars end their lives through supernova explosions.
30. Over 100 artificial satellites are launched into space each year.

31. Spacecraft have visited all the known planets in our solar system.
32. If you drove a car to the nearest star at 70 mph, it would take more than 356 billion years.
33. Olympus Mons is the largest known volcano in space.
34. The reason space is so dark is because we can see the light only when it hits an object and bounces off of it.
35. Neptune has a moon named Triton and is the coldest known object in the solar system.

36. The Sun is white because of its extreme heat (10,340.33 degrees F). It only appears yellow because of the Earth’s atmosphere.
37. It will take the Sun around 200 million years to travel around our galaxy.
38. The universe is observed to be 12.8 billion years old.
39. Pluto does have mountains.
40. The closest star system to Earth is Proxima Centauri is 4.25 light-years away.

41. Enceladus, Saturn’s moon, has an icy shell that reflects about 1005 of the light that reaches it.
42. The first person to look into space with a telescope was Galileo.
43. When water boils on Earth, it creates thousands of little bubbles, but because of lack of gravity, when water boils in space, it produces one giant, undulating bubble.
44. To escape Earth’s gravity, a spacecraft must travel more than 25,008 mph, Mach 33.
45. Since 2021, more than 609 people have been in space.

46. Space is flexible and expanding.
47. Jupiter weighs more than twice as much as all our other planets together.
48. There are two plants with no moons: Mercury and Venus.
49. Jupiter is the largest planet in the solar system and a failed star.
50. Jupiter has a “Great Red Spot,” which is a storm that has been swirling for more than 100 years.

51. Galaxies can “eat” other galaxies.
52. Light takes 8 minutes 22 seconds to reach Earth from the sun’s surface, but 100,000 years from its core.
53. Mars is known as the red planet because it is rich in iron.
54. There are eight planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
55. The International Space Station completes an orbit of Earth in about 90 minutes.

56. Space is completely silent. It is a vacuum with no medium to travel; there are no sound waves.
57. The planets in our solar system are divided into two main groups: Terrestrial Planets and Gas Giants.
58. Pluto has been reclassified as a dwarf planet, not a planet.
59. Jupiter has more than double the mass of all the other planets combined.
60. Galaxies are either elliptical, spiral, or irregular. These galaxy types are based on their appearance.

61. A day on Mars is longer than a day on Earth.
62. The footprints on the moon will be there for 100 million years.
63. The Sun is a main-sequence star. One million Earths can fit inside the Sun.
64. The Sun’s mass takes up 99.86% of the solar system.
65. Earth’s atmosphere protects from meteoroids and the Sun’s radiation.

66. If a star passes too close to a black hole, it can be torn apart.
67. The Earth’s moon is the 5th largest moon in the solar system.
68. A volcano on Mars is three times the size of Everest.
69. Mercury is shrinking.
70. There is floating water in space.

71. Venus is the second brightest natural object in the sky.
72. Planets are defined as a celestial body that orbits around the Sun.
73. Jupiter comprises Hydrogen and Helium but is not large enough to generate its energy.
74. Venus is the hottest planet in the solar system.
75. Light always travels at 186,000 miles per second.

76. The International Space Station is about as wide as a soccer field.
77. The rings on Saturn are named alphabetically based on when they were discovered.
78. Stars do not twinkle until their light passes through Earth’s atmosphere.
79. The Sun is made of ¾ hydrogen, and its remaining mass is helium.
80. There have been six successful missions to put people on the Earth’s moon. A total of 12 astronauts explored the moon between 1969 and 1972.

81. The International Space Station is a partnership between five space agencies from 15 countries.
82. Our solar system is 4.571 billion years old.
83. An estimated 100- 400 billion stars in our galaxy make up what we know as the Milky Way.
84. The Milky Way is a spiral galaxy.
85. The first American in Space was Alan Shephard (1961).

86. The Moons of Uranus were named after Characters created by Alexander Pope and William Shakespeare.
87. The solar system contains small black holes.
88. Any liquid floating in space will form the shape of a sphere.
89. The International Space Station can be viewed from your backyard.
90. A burning ice planet has been detected in space.

91. Pluto’s most significant move is about half the size of a dwarf planet.
92. Venus has the thickest atmosphere among all planets.
93. Extragalactic plants are planets that are outside the Milky Way.
94. If two pieces of the same type of metal touch in space, they will permanently bond.
95. The planets are listed in order of size, largest to smallest: Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars, and Mercury.

96. All planets, except for Earth, are named after gods from Roman and Greek mythology.
97. Sunsets on the Red Planet are blue, small and long.
98. Venus is the hottest planet in our solar system. The average temperature is 232 degrees F.
99. The solar system has four planets known as “gas giants”: Jupiter, Saturn, Uranus, and Neptune.
100. The International Space Station is the largest ever-crewed object in space.

101. The most giant known asteroid is 600 miles wide
102. It would take a person 9 years to walk to the moon.
103. Space is a hard vacuum, which means it is a void that contains very little matter.

Do you have even more interesting facts about space? Share them with us in the comments! Also, don’t forget to grab your free space fact cards to add to your collection!