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Inside the comet 67P found no major voids

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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

Interesting facts about comets

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

The discoverer of the comet ISON at Baltkom

Thanks to the flight to Pluto the earthlings had the opportunity to see a completely unknown distant world, but the planet itself asked scientists puzzle that requires resolution, said in an interview with radio Baltkom, the Russian astronomer who discovered the brightest comet of the decade ISON Artem Novichonok.

“We, first of all NASA employees,as well as all humans, had the opportunity to see a completely unknown distant world located on the outskirts of the solar system and he was totally not as what we expected. This world presents a lot of surprises and much more when the device will reset all data”, – said the scientist.

“First of all we are talking about data relating to the formation of the solar system in General and the formation of those distant objects, one of which is Pluto. Learning of this mission, we see a completely unusual structure, we see that the surface of Pluto and its satellite Charon are very young, suddenly, their bodies are very small, cold, much less the Earth and explain this geological activity is quite young mountains, the age of which children on the part of the solar system is very young, the plains are also very young, completely devoid of craters. All of these processes obyasnite does not work. Continue reading

Space tourists threat?
Recently a team of American researchers said that the now popular space tourism can be dangerous for climate of the planet. However, many scientists refer to this statement with skepticism.…

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For the non-refundable flight to Mars 52 Russians are selected
Dutch company Mars One intends to send the first volunteers to the Red planet by 2023. But our expert explains why it's not going to happen Organizers of large-scale colonization…

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Christmas comet Lovejoy
Good Christmas gift for this year all lovers of astronomical observations . New for 2015, the comet called Lovejoy C/2014 Q2 will reach visible magnitude, making it visible to the…

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