![]() ![]() He also makes the point that the Solar System is littered with asteroids to the extent that no celestial body has “cleared the neighborhood” around its orbit. “They now outnumber the terrestrial and gas planets and are expected to number in the hundreds when surveys are complete,” said Stern. ![]() That’s a shame because one of the revolutions in planetary science in the last 40 years has been the discovery that the Kuiper Belt-that “third zone” in the Solar System beyond the orbit of Neptune-is busy with comets, planetesimals and small planets like Pluto. “Astronomers became afraid of astronomically large numbers.” “The purpose of the IAU in creating this definition was to limit the number of planets in our Solar Systems so that school kids wouldn’t have to memorize long lists of planets,” he said. He thinks the IAU overacted because they were horrified by the idea that there could be hundreds of small planets beyond the orbit of Neptune in the Kuiper Belt. Is Pluto a planet? It’s been one of astronomy’s most controversial questions since a meeting of the International Astronomical Union (IAU) in August 2006 voted to downgrade the then-ninth planet to mere “dwarf planet” status.Įnhanced color global view of Pluto, taken when NASA’s New Horizons spacecraft was 280,000 miles. Haumea is an ellipsoidal shape rather than a sphere, owing to its rapid spin. From left to right they are Pluto (with Charon, Hydra, Mix, Kerberos and Styx), Eris (with Dysnomia), Makemake, Ceres, and finally the oddly shaped Haumea (with Hi iaka and Namaka). Here are the five currently confirmed dwarf planets in the Solar System as of 2018 along with their known natural satellites, or moons. All the other dwarf planets so far known are found beyond Neptune, in a region of the Solar System full of debris called the Kuiper belt. Ceres, for example, shares its orbit with other asteroids. They are massive enough for their self-gravities to crush them into spheres, but they have not cleared the neighbourhood of other material around their orbits. A dwarf planet is a planetary mass object orbiting the Sun. The organization is composed of four departments: General Planning System Engineering Science, Technology, and Quality Control and Foreign Affairs.Dwarf planets and moons, illustration. What is the name of China Space Agency?Ĭhina National Space Administration China National Space Administration (CNSA), Chinese Guojia Hangtianju, Chinese government organization founded in 1993 to manage national space activities. It is the primary source of NASA's earnings. According to the latest Budget report for the fiscal year (F.Y.) 2021, the proposed budget of NASA is about $23.3, which is about 3% more than the previous year's amount. ![]() NASA directly gets money from the annual budget. ![]() SpaceX's valuation has topped $100 billion, making the company even more of a rich rarity in a fast-growing industry. SpaceX has apparently become the second-most valuable private company in the world. Administrator of the National Aeronautics and Space AdministrationĮlon Musk SpaceX, the privately held satellite and launch- services company founded by Elon Musk, is valued at about $100 billion-a hefty sum, but a fraction of what Tesla is worth. The administrator of the National Aeronautics and Space Administration is the highest-ranking official of NASA, the national space agency of the United States….Administrator of NASA. governmental agency established in 1958 for the research and development of vehicles and activities for the exploration of space within and outside Earth's atmosphere. National Aeronautics and Space Administration (NASA), independent U.S. Is NASA funded by the government?Īs a federal agency, the National Aeronautics and Space Administration (NASA) receives its funding from the annual federal budget passed by the United States Congress. This is another reason why NASA cannot be privatized. Since NASA is not in the private sector it has been able to fund research in lifesaving technologies and many knowledge advancing projects without having to focus on making a profit. What is the name of China Space Agency?. ![]()
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