Interested in everything connected with high technologies.
Inside the comet 67P/Churyumov — Gerasimenko there are no large voids. The mission of “Rosetta” the European space Agency made measurements that clearly demonstrated and solved the old mystery. Comets are icy debris left over from the formation of the planets 4.6 billion years ago. Spacecraft have visited a total of eight comets, and through these missions we pulled a picture of the basic properties of these space-time capsules. On some questions the answers were found, others appeared.
Comets, as we know, consist of a mixture of ice and dust, and if there were compact, gravity superior to water. However, previous measurements have shown that some of them have very low density, much lower than water ice. Low density means that the comet must be extremely porous.
But what is this porosity: due to large voids in the subsurface of the comet, or due to a more homogeneous structure with low density? Continue reading
Comets are small Solar system objects that move in orbit around the Sun and can be observed as a bright point with a long tail. They are interesting for several reasons.
Since ancient times people have observed comets in the sky. Only once in 10 years, we can see the comet from Earth with the naked eye. Its impressive tail flashes across the sky for several days or weeks.
In ancient times comets were considered a curse or a sign of previous trouble. So in 1910, when the Ground caught the tail of Halley’s comet, some entrepreneurs took advantage of the situation and sold people masks, pills from the comet, as well as umbrellas to protect from comets.
The name of the comet received from the Greek word for “long-haired” because people in Ancient Greece thought that comets look like stars with flowing hair.
Comets tail appears only when they are close to the Sun. When they are far away from the Sun, comets are extremely dark, cold, icy objects. Ice body is called the nucleus. Continue reading
Second disclaimer: Denis Tito was the first cosmotourist, but not the first astronaut sent into orbit on a commercial basis. Even in 1990, Japanese journalist toyohiro Akiyama visited the orbital station “Mir” as a cosmonaut-researcher. For his training and flight paid Tokyo broadcasting Tokyo Broadcasting System (TBS) for promotional purposes.
But Dennis Tito became the first tourist in the classic sense of the word. He flew to the ISS in order to relax, spend time with pleasure, to film the Earth from the window I. to open a new era in the history of space exploration.
In the office of the Director General of the company “Orbital technologies” Sergey Kostenko – many diplomas for merits in development of space tourism and Photos with celebrities. “We’ve been working in the field of space tourism company Space Adventures, says Mr Aksyonov. – Initially it was just a workout space, and then, in 2001, there was Dennis Tito marked the beginning of a real flight. Continue reading