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The bombardment of comets

Possibly, comets brought water to Earth

To see exactly what is in the comet, it is necessary to analyse its substance with the help of different high sensitive devices, bringing samples to Earth. But aboard a small spacecraft such devices are difficult to place, because the size of the station Stardust 1,7×0,7×0,7 meters – about the same size as the Desk. How to take a sample of matter, flying from the comet’s nucleus at high speed? Space standards Stardust was moving slowly relative to the comet, about one and a half times slower than fly around the Earth artificial satellites. However, even this speed was several times greater than that of the bullet, the station flew over one second 6 km from the Contact of dust particles with the container of solid material at this speed (more than 20 thousand km/h) would have led to their strongest heating and evaporating. The only way to mildly catch and stop these dust particles, turned out to be a trap made of unique material – aerogel, which was established in 1931, but the big distribution has not received. Continue reading

Place the Solar system in our Galaxy

Planet Earth, the Solar system . and all the stars visible to the naked eye are in the milky Way Galaxy . which is a spiral galaxy with a jumper with two distinct sleeves starting at the ends of the jumper.

This was confirmed in 2005 a space telescope named the Lyman Spitzer, which showed that the centre bar of our galaxy is larger than previously thought. Spiral galaxy barred spiral galaxy barred (“bar”) of bright stars emerging from the center and crossing the galaxy in the middle. Spiral branches in these galaxies begin at the ends of the crosspieces, whereas in normal spiral galaxies, they come directly from the kernel. Observations show that about two thirds of all spiral galaxies have a bar. According to existing hypotheses, the jumpers are centers of star formation, supporting the birth of stars in their centers. It is expected that through orbital resonance, they are passed through a gas of spiral branches. This mechanism provides a flow of building material for the birth of new stars. Milky Way along with the Andromeda galaxy (M31),Triangle (M33), and more than 40 smaller galaxies-satellites, form the Local Group of Galaxies, which, in turn, is part of the Virgo Supercluster. “Using infrared images from NASA Spitzer telescope allowed scientists to discover that the elegant spiral structure of the milky Way has only two prevailing sleeves from the ends of the Central bar of stars. Previously it was thought that our galaxy has four main hoses “. Continue reading

Parade of planets

Star line-up. As you know, these days several planets in the solar system lined up in one line. This so-called parade of planets. In Irkutsk cosmic phenomenon, of course, interested professionals and Amateurs to observe the Universe.

Fans of star observations go in pursuit of planets in the early morning. Every minute counts. Dawn is inexorably approaching. Even a small glow can ruin the expedition. In the suburbs of Irkutsk the best place for astronomical observations — the village of Maksimovschina. There is a good elevation away from the city. At five o’clock in the sky appears the first star of the big parade of planets. Despite the early hour and freezing temperatures, people came here by families with young children.

— Parade of planets happens once in a lifetime. At least see the time. Star-gazing, says participant observations Dmitry Bakers.

Organizes the monitoring of the Irkutsk planetarium. Brought two powerful telescope. With their help, you can enjoy a stunning view of space in all its glory. Thanks frosty air clearer picture. Continue reading

The largest planet in the Solar system
Equatorial diameter of Jupiter 142600 km (11 times the diameter of the earth). The period of rotation of Jupiter is the shortest of all the planets - 9h. 50min. 30C.…

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Astronomer Fyodor Bredikhin
Astronomer Fyodor Bredikhin was born in 1831 in the city of Nikolaev in the ancient noble family. To 14 years Bredikhin was home-schooled - in the estate of her father…

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The history of cosmonautics
Space and Humanity History of Astronautics - 098 The history of the space a number of times when on the road to further human exploration of outer space rose up…

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