Solar system. Planets of the solar system
Its center is a huge star called the Sun. It is the closest star that is billions of years gives us light and heat. Without it, impossible would be life on the planet. Around it revolve the planets, of which eight are known today, as well as other celestial objects.
Schematically, the structure of the solar system is as follows:
Man is always interested in the question thus arose our solar system. But it was a long time before scientists were able to answer this question. There were many versions and assumptions on this issue. And today, astronomers are continuing their investigation.
According to a hypothesis of Kant-Laplace five billion years ago there was only a gas cloud. It moved through the universe, but at some point he undergoes certain processes. Then there is compression and then begins the rotation, the center of rotation is the fastest. The temperature at the center of the cloud began to grow and formed a protostar that later became the Sun. The nebula continued to spin, and the star are unable to absorb all the substance of the nebula, they are attracted, experienced, forming planetesimal. One of them appeared on the planet. Continue reading
We are not the passengers of the ship named “Earth”. We are his team.
Marshall McLuhan, canadian philosopher
What would happen if you put together all the fantastic ships, coined by science fiction of the 20th century, and a formula of a starship? Rusty titanium case with a sign “Millennium machine”, solar sail (and in the case of wind — solar paddles), the dark matter generator, and calico colored toilet paper, as well as managing all this mess Artificial Intelligence models Windows 2050 with delusions of grandeur and a pleasant female voice, counting down the time before the explosion of the ship’s reactor.
Oh Yes, it would be a good ship. One-legged cyborg-the boatswain, not parting with a jar of deuterium, would include the night side lights (so we don’t crash into someone at subluminal speed, and FTL — us), and the captain nervously poked a finger at the colorful buttons on the command panels of the bridge and shouted: “Where’s the lighter?”. Continue reading
While it “calculated” on the computer
In 2006, the Solar system lost one of the nine planets — Pluto stripped of planet status due to negligible size. But the discovery of American scientists threatens to return the ninth planet in the system — found a new celestial body, claiming the title.
The staff of the California Institute of technology Michael brown and Konstantin Batygin has published a paper in the reputable scientific journal “Astronomical journal” about his study, in which they “discovered” a new planet in the Solar system.
Celestial body has a mass of 5-10 times larger than our planet, and is about 20 times farther from Earth than Neptune. Despite the fact that Neptune is the most distant planet, until it 4300 million kilometers. Accordingly, before “the ninth planet” – about 8600 million. The problem is that open planet. while no one was looking through a telescope, it was discovered through computer simulation. However, the accuracy of such simulations is very high today. Continue reading