An unknown object — a “cosmic string” – has been discovered near the milky Way’s supermassive black hole. This cosmic thread will revolutionize our understanding of gravity, space-time, and the Universe itself.
The center of our Galaxy has been intensively studied for many years, but it still holds surprises for scientists. A snake-like structure lurking near our galaxy’s supermassive black hole has become a discovery that teases the imagination of astronomers. “A mystery that became part of the thrill. Science has stumbled upon a mystery that is not easy to solve,” said Jun — Hui Zhao of the Harvard-Smithsonian center for astrophysics in Cambridge, Massachusetts. “While we don’t have an answer yet, the path to finding it is fascinating.”
In 2016, Farhad Youssef-Zadeh of northwestern University reported the discovery of an unusual luminous filament near the center of the milky way galaxy using a very large NSL Karl j matrix. Yansky (VLA). The thread is about 2.3 light-years long and curves around and towards a supermassive black hole called Sagittarius A * (Sgr A *), located at the center of the Galaxy. Continue reading
Jupiter thousands of years ago named after the king of Roman gods, and reigns among the nine planets of our Solar system, rivaling the Sun in its splendor. The largest planet is located far beyond the main asteroid belt. The mass of Jupiter exceeds the mass of all other planets combined.
Jupiter is the largest planet in the Solar system. The semimajor axis of Jupiter’s orbit is 5.2.e. the eccentricity of the orbit e = 0,0489, the period orbits – 11,867 years. The inclination of the orbital plane to the plane of the Ecliptic is 1°1817″. The average speed along the orbit – about 13.1 km/s.
The period of rotation around the axis is 9 hours and 55 minutes. Each dot on the equator moves at a speed of 45 thousand miles per hour. Due to the centrifugal force of Jupiter is noticeably flattened (compression rate greater than 6 %). Since Jupiter is not a solid ball, and consists of gas and liquid, the Equatorial parts rotate faster than the polar regions. The rotation axis of Jupiter is nearly perpendicular to its orbit, therefore, the planet has no seasons.
The mass of the planet is M = 318 M = 1,9∙10 27 kg, radius R = 11,2 R = 71 492 km, However, Jupiter is very thin: its density is 1.33 g/cm 3. which is four times less than the density of the Earth. The acceleration of gravity at the level of the cloud surface of Jupiter sostavljaet = 2,53 g. Continue reading
Alexander Laveikin: “Flights must go on”
In Moscow memorial Museum of cosmonautics in full swing preparing for the celebration of the 50th anniversary of Yuri Gagarin’s flight. Open exhibitions, meetings with foreign delegations, conducted educational activities in schools. Deputy Director of the Museum of science, pilot-cosmonaut A. I. Laveikin took the time to answer the questions of the correspondent of the Russian geographical society.
– In Russia, 2011 was declared the year of cosmonautics. Half a century since Yuri Gagarin’s flight, many have given our country in terms of space exploration. Should we expect the same from the next fifty years?
Depends on what kind of development is involved. There are manned and unmanned space exploration. Unmanned space exploration – satellites, navigation, natural resources, meteorology, Photography of the Earth and the Universe. Today all this is extremely in demand and popular, so the direction will develop by leaps and bounds. As for manned space flight – here the question is more complicated. Continue reading