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
100 kilometers above the Earth’s surface (according to the international standards space begins at this altitude), speed – kmh 4000, which is 4 times the speed of sound, so it looks like a tourist flight into space, which you could see in sci-Fi movies or dreamed about since childhood.
Now the dream to see the immensity of outer space has already become a reality.
Who are those 5 people who first saw the Galaxy, read the article. We will also talk about the details of the flight and to quote the impressions of space explorers.
Space tourists – Dennis Anthony Tito
Time in space: 28 April – 6 may 2001
Fare: $20 million
Citizenship: United States
This reckless American with a decidedly non-American name proudly bears the title of “space tourist No. 1”. Anthony Tito is a multimillionaire and entrepreneur of Italian origin. Continue reading
While the Solar system in General and Earth in particular is the only house people, we need to know about this house. And what? Humanity is grappling over the years, it would seem, not so complicated questions, and no answers.
1. The Oort Cloud. Does the Oort cloud
The Oort cloud is the biggest mystery of the Solar system. People have never seen this hypothetical plot of the Universe, which, according to theories, is a place of formation of the comets with a long period of treatment. Scientists believe that the Oort cloud is located at a distance from 50 thousand to 100 thousand. E. from our Sun. Its outer boundaries lie on the boundary of the Solar system, and billions of bodies out of the Oort cloud is gravitationally bound to the Sun.
2. The anomaly of the spacecraft “pioneer”. Why probes pioneer deviate from the course?
Space probes “pioneer 10” and “pioneer 11” were launched in 1972 and 1973, respectively, to study the outer limits of the Solar system. NASA scientists have observed significant deviations of vehicles from the course, due probably to the action of gravity of the Sun. When more detailed calculation of the acceleration of the spacecraft found a very weak force of unknown nature, which operated on them. Continue reading