Space is the vast expanse of the universe that exists beyond the Earth's atmosphere. It is the area where planets, stars, galaxies, and other celestial bodies exist and move. Space is also filled with vast amounts of gas, dust, and other matter, as well as electromagnetic radiation such as light and radio waves.
The study of space is known as astronomy, and space exploration is the physical exploration of space, often involving the use of spacecraft and other technologies.
यह आर्टिकल इंडियन क्यूरेटर (Indian Curator) पर हिंदी में उपलब्ध हैं|
Interesting facts about space:
1. The universe is estimated to be around 13.8 billion years old.
2. The temperature of the sun's core is about 15 million degrees Celsius (27 million degrees Fahrenheit).
3. The sun is about 4.6 billion years old and will continue to shine for another 5 billion years or so before it dies.
4. The sun is just one of about 100 billion stars in the Milky Way galaxy.
5. The Milky Way is a barred spiral galaxy, which means it has a central bar-shaped structure made up of stars.
6. The Milky Way galaxy is estimated to be about 100,000 light-years in diameter.
7. The nearest star to Earth is Proxima Centauri, which is about 4.24 light-years away.
8. A light-year is the distance light travels in one year, which is about 9.46 trillion kilometers (5.88 trillion miles).
9. The Earth is the third planet from the sun and is about 150 million kilometers (93 million miles) away from it.
10. The Earth is the fifth largest planet in the solar system and is the only planet known to support life.
11. The Earth has a diameter of about 12,742 kilometers (7,918 miles) and a circumference of about 40,075 kilometers (24,901 miles).
12. The Earth has one moon, which is about one-quarter the size of Earth and is the fifth largest moon in the solar system.
13. The moon is about 384,400 kilometers (238,855 miles) away from Earth and takes about 27.3 days to orbit the Earth.
14. The moon has no atmosphere and is covered in craters and mountains.
15. Mars is the fourth planet from the sun and is known as the Red Planet because of its reddish appearance.
16. Mars is about 228 million kilometers (142 million miles) away from the sun and takes about 687 Earth days to orbit the sun.
17. Mars has two small moons, Phobos and Deimos, which are thought to be asteroids that were captured by Mars' gravity.
18. Mars has a thin atmosphere made up mostly of carbon dioxide, with trace amounts of other gases such as nitrogen and argon.
19. Mars has the largest volcano in the solar system, Olympus Mons, which is about three times taller than Mount Everest.
20. Mars also has the longest canyon in the solar system, Valles Marineris, which is about 4,000 kilometers (2,500 miles) long and 7 kilometers (4.3 miles) deep.
21. Mercury is the smallest planet in the solar system and is the closest planet to the sun.
22. Mercury is about 58 million kilometers (36 million miles) away from the sun and takes about 88 Earth days to orbit the sun.
23. Mercury has no moons or rings and has a very thin atmosphere made up mostly of sodium and hydrogen.
24. Mercury has a cratered surface and is heavily scarred by impacts from meteoroids.
25. Venus is the second planet from the sun and is sometimes called the Earth's sister planet because it is similar in size, mass, and composition.
26. Venus is about 108 million kilometers (67 million miles) away from the sun and takes about 225 Earth days to orbit the sun.
27. Venus has no moons or rings and has a thick atmosphere made up mostly of carbon dioxide, with trace amounts of other gases such as sulfur dioxide and nitrogen.