Here are some rare and interesting facts about satellites:
- First satellite: Sputnik 1 (1957) weighed 83 kg and measured 58 cm in diameter.
- Most satellites: USA has launched over 1,700 satellites, with Russia second at around 1,400.
- Largest satellite: International Space Station (ISS) spans 73 meters in length and 109 meters in width.
- Smallest satellite: Femto satellites are smaller than a grain of rice (less than 1 cm³).
- Highest satellite: Voyager 1 is 14 billion miles away from Earth, traveling at 38,000 mph.
- Longest-operating satellite: NASA's LAGEOS 1 has been orbiting since 1976 (over 47 years).
- Most expensive satellite: International Space Station (ISS) cost around $1.3 trillion.
- Satellites in orbit: Over 5,000 active satellites are currently orbiting Earth.