Space Crossword

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Across
  1. 2. The first planet in our solar system and the smallest one. It has a solid surface that is covered with craters. It has no atmosphere, and it doesn't have any moons.
  2. 6. The home of our solar system.
  3. 8. This dwarf planet is a geologically active body also this planet has less than a third of the moon’s width.
  4. 9. The fifth planet in our solar system and the biggest one. Is a gas giant planet and it doesn't have a solid surface. It is covered in swirling cloud stripes.
  5. 11. A dwarf planet and the farthest planet from the sun. The surface of this planet is covered with ice and has mountain ranges, light and dark regions, and craters.
  6. 15. It is located in the Kuiper Belt, it's really cold and it is the second brightest icy dwarf planet.
  7. 17. The sixth planet in our solar system and the second largest planet. It is a gas giant planet made up mostly of helium and hydrogen and it has thousands of beautiful ringlets.
  8. 20. Giant balls of hot gas, mostly hydrogen with some helium and small amounts of other elements. The life cycle can range from a few million to trillions of years, and the properties change as it ages.
  9. 21. The first human to go into space on April 12, 1961.
  10. 24. It was NASA’s first mission to the outer planets. It was the first spacecraft to visit Jupiter, the first one to fly beyond Mars, the first one to fly through the main asteroid belt, it was the first human-made object to go beyond Neptune.
  11. 26. This dwarf planet could be the 10# planet in our solar system but because it was really small is known as a dwarf planet. Also, it has the name of one of the Greek Gods.
  12. 27. The third planet in our solar system. Is a rocky, terrestrial planet and it has a solid and active surface with mountains, valleys, canyons, plains, and more.
  13. 28. The second object with more mass in the asteroid belt. This giant asteroid has separated into crust, mantle, and core, much like Earth.
  14. 30. A planet beyond our solar system. More than 5,600 of them are confirmed, though it is believed that there are billions of them.
Down
  1. 1. Discovered on June 26, 2014. It is the most distant object visited by a spacecraft. Is the reddest outer solar system object visited by a spacecraft.
  2. 3. Forms when a massive star runs out of fuel and explodes in a supernova.
  3. 4. The second-largest moon of Pluto. This moon has a highly reflective surface.
  4. 5. The fourth planet in our solar system and is the second smallest planet. This planet is also named the “Red Planet”. It is a terrestrial planet with a thin atmosphere.
  5. 7. This asteroid was discovered on Aug,13,1898. This asteroid is known for being the first asteroid to be orbited by a spacecraft.
  6. 10. A solar probe whose scientific mission is to investigate the mysteries of the Sun’s corona and solar wind.
  7. 12. The seventh planet in our solar system and is the coldest planet in the solar system. Is known as the “sideways planet”.
  8. 13. Is the largest moon of Pluto. Is so big that Pluto and this moon orbit each other. This moon has a frigid surface, covered with nitrogen ice, methane, and possibly some water ice.
  9. 14. The eighth planet in our solar system. It is an ice giant made of a thick soup of water, ammonia, and methane flowing over a solid core.
  10. 16. Took the first picture of the Moon by a U.S. spacecraft on July 31, 1964, 17 minutes before crashing onto the lunar surface.
  11. 18. A small natural satellite of Pluto. Has a double-lobed shape and a highly reflective surface
  12. 19. It is an M-Type asteroid, its orbit period is about five Earth years. There is going to be a mission with the main purpose of investigating this asteroid.
  13. 22. Second largest moon in the solar system, and the only world other than Earth that has standing bodies of liquid, including rivers, lakes, and seas on its surface.
  14. 23. The second planet in our solar system. The surface of this planet is extremely dry and is the hottest planet in the solar system.
  15. 25. Is a natural satellite of Pluto and is the third farthest moon from Pluto. Is the third-largest moon.
  16. 29. It is a small, irregular-shaped moon composed mostly of water ice.