About the discovery of the ninth planet of the Solar system two astronomers from the California Institute of technology in Pasadena became known on January 20. One of them — the native of Russia Konstantin Batygin — spoke about the search for Planet X, the difficulties with the title the new heavenly bodies and unsolved mysteries of the Solar system.
What is an open planet?
Konstantin Batygin . She falls into the category of dwarf planets. This celestial body is quite massive. Our model gives a mass of about ten earth, this planet is just a giant. Now it is defined as a celestial object whose gravitational field is dominant in that part of the Solar system.
In General, there is not even a question: it’s a planet or not. We know about it, because its gravity affects the orbit of the farthest objects in the Kuiper belt. The very mathematical modeling relies on the fact that this planet has enough mass for gravity to dominate in the Solar system. Continue reading
The U.S. space Agency plans to launch a probe, equipped with a solar sail. He will leave earth orbit and go to the distant asteroid due to the pressure of sunlight. Like the ships of the discoverers of the 15th century, in 2018, a small space probe will unfurl the sail and start a journey to a faraway asteroid, marking the beginning of a new phase in space exploration.
The idea of using solar sails for space flight was proposed almost a hundred years ago, Soviet rocketry pioneer Friedrich Zander. It was based on the fact that Photons of light can exert pressure on the illuminated surface, giving him his momentum. Therefore, if you expand behind the ship a giant mirror, his speed will gradually increase without using fuel.
However, the first experimental devices were established only at the very end of the twentieth century. This is because space sailboats should be very easy, and their embodiment in life became possible only after the emergence of a truly compact electronics. Continue reading
5 documentaries about space, which is a must-see after “Gravity”.
Of course, no one claims that the recent release with George Clooney and Sandra bullock is a scientific and educational films. However, in the film there are scenes that require clarification to fully appreciate the realism of the project, Alfonso Cuaron. To do this, we have found 5 documentaries that are not only fascinating but also relevant to the plot of “Gravity.”
“Hubble 3D”, 2010
At the beginning of “Gravity” Dr. Ryan stone, she is new to NASA, trust the repair of Hubble telescope. Learn how the Hubble looks real, how many people have access to it and what happens when damage to a spacecraft, from a picture of Tony Myers. The film “Hubble 3D” is a complete film magazine on a mission “Atlantis”, where the parts are shown in a professional kitchen around Sara and satellites. It is noteworthy that the astronaut Michael Massimino, who was in the space Shuttle Atlantis, is considered the prototype of Matt Kowalski, played by Clooney. The number of celebrities associated with the movie, not the end — in the original version of the film narration reads Leonardo DiCaprio. Continue reading