Angličtina na iDNES.czAccording to astronomers, Sol is about 4.57 billion years old, roughly 1,370,000 km in size, and it has a surface temperature of anywhere from 5,800 degrees to as much as 15,800,000 degrees in its core .
Planets and Asteroids
Located between the planets of Mars and Jupiter, is an area known as the asteroid belt. It is called this, because scattered over millions of kilometers are the remains of countless asteroids and small rocks.
Our Closest Planet
The closest planet to Sol is called Mercury. Mercury, much like the Moon, does not rotate, despite the fact it is a planet.
This means that the side of Mercury which faces Sol is extremely hot, while its back side is icy cold.
Much like the Moon, the planet Mercury has no protective atmosphere. Because of this fact, its surface has scars from its long past of having been hit with asteroids and meteor strikes of all kinds.
Mercury also has a very short orbit. It only takes 88 days to days to circle the sun, compared to 365 days for the Earth.
Jokes of the Day: Great Expressions"Women are like phones. They like to be held and talked to, but if you press the wrong button, you will be disconnected." "When I die, I want to go quietly and peacefully in my sleep, just like my Grandfather did. I don’t want to go out screaming and yelling like the rest of the passengers on his bus did." "Behind every successful man, is a completely surprised woman." "Some people have photographic memories. Others do as well, but never bring any film." "Always remember that you are unique, just like everyone else." |
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