On 5 November 1957, Gagarin was commissioned a lieutenant in the Soviet Air Forces having accumulated 166 hours and 47 minutes of flight time. He graduated from flight school the next day and was posted to the Luostari Air Base close to the Norwegian border in Murmansk Oblast for a two-year assignment with the Northern Fleet. On 7 July 1959, he was rated Military Pilot 3rd Class. After expressing interest in space exploration following the launch of Luna 3 on 6 October 1959, his recommendation to the Soviet space programme was endorsed and forward by Lieutenant Colonel Babushkin. By this point, he had accumulated 265 hours of flight time. Gagarin was promoted to the rank of senior lieutenant on 6 November 1959, three weeks after he was interviewed by a medical commission for qualification to the space programme.
What is the difference between a Lunar Eclipse and New Moon? They seem quite similar and there is often confusion between the two. A lunar eclipse happens twice a year whereas a new moon happens once a month. Here is further clarification: Saturn is the smaller of the two gas-giant planets, twirling around our Sun, in the outer regions of our Solar System--far from the delightful warmth of our lovely incandescent roiling gas-ball of a Star. Jupiter is the larger of the duo of gas-giants dwelling in our Solar System, as well as the largest planet in our Sun's bewitching family, which is composed of eight major planets, an assortment of moons and moonlets, and a rich menagerie of smaller objects. Saturn is the second-largest planet in our Solar System--and probably the most beautiful. The Solar System forms a tiny part of the Milky Way Galaxy, a vast conglomeration of stars and planets. What makes astronomy so thrilling is that despite its size, the Milky Way is not the only galaxy in the universe. There are hundreds of billions of galaxies out there, probably more. The closest galaxy to our own Milky Way is Andromeda. Now, brace yourself for the distance: it is 2.3 million light years away. One of the most exciting phenomena for astronomers is the black hole. It is an area of the universe where the concentration of mass is so massive (no pun intended) that the gravitational pull it generates sucks in everything around it. Everything includes light. Remember that the escape velocity for any object in the universe is the speed required to escape the objects gravitational pull. The escape velocity for the Earth is slightly over 11 kilometers per hour while for the Moon is 2.5 kilometers per second. Well for a black hole, the escape velocity exceeds the speed of light. That is how strong the pull is.