The solar system comprises the Sun then everything around it, including planets, moons, asteroids, comets, and meteorites. It stretches from the Sun, called the Sun by the ancient Romans, and traverses the four inner planets. Through the asteroid belt to the four gas giants and the disc-shaped Kuiper belt, and beyond that to the teardrop. – heliopause fit. Scientists estimate that the solar system’s edge is about 15 billion kilometers from the Sun. Beyond the heliopause is the huge spherical Oort cloud that is said to surround the solar system.
How Old Is Our Solar System?
Meteorites, or rocks from space that fell to Earth, have helped scientists determine the age of the solar system. Some of these tiny bits of space rock, or meteoroids, have been detached from moons or planets and can provide interesting scientific information. About the chemistry and history of their original bodies; Others had travel through our solar system since the initial dust cloud collapsed, even before these planets existed. The Allende meteorite, clear-cut to Earth in 1969 and spread through Mexico, is the oldest known meteorite, dating back 4.550 million years.
How Did Our Solar System Come About?
Scientists believe that a nearby exploding star called a supernova could have caused our solar nebula to collapse. According to this theory, the supernova explosion sent shock waves into space. Which brought parts of the nebula closer together and caused it to collapse. The supernova could even have seeded matter into the nebula, and that discarded matter would have drawn even more value into the growing mass of the nebula.
A Star In A Galaxy
The Sun is among 25,000 and 30,000 light-years since the supermassive black hole that forms the center of our galaxy. The Milky Way remains a spiral galaxy with curved stellar arms extending from its center. Our solar system includes one of the minor arms, the Orion-Cygnus arm, or simply Orion’s arm.
According to NASA’s Jet Propulsion Laboratory’s Night Sky Network, if our solar system were the size of your hand, the Milky Way would cover North America. The limit of the Sun’s gravitational influence is about 122 astronomical units (AU), where AU is the distance between the Earth and the Sun, or about 93 million miles (150 million kilometers).
The Planets Of Our Solar System
Eight confirmed planets and at minimum five dwarf planets orbit our Sun. According to NASA, “the arrangement and arrangement of the planets. And other bodies in our solar system is due to the way the solar system was form.” Rocky materials could withstand the immense heat of the young Sun. And therefore the first four planets (Mercury, Venus, Earth, and Mars) are small with rocky surfaces. Furthermore, “the materials that we are used to in the form of ice, liquid or gas have settled in the outer regions of the young solar system,” says NASA, namely the gas giants Jupiter and Saturn and the ice giants Uranus. And Neptune.
Mercury is the nearby planet to the Sun and the minor planet in the solar system, barely bigger than Earth’s moon. It does not have an atmosphere to defend it from the Sun’s relentless radiation, and surface temperatures can rise as high as 430 degrees Celsius (800 degrees Fahrenheit) before dropping to minus 290 F (minus 180 C) during the day. Mercury got its name from the Roman messenger of the gods due to its rapid rotation around the Sun. This minor planet has no moons.
Venus, named after the Roman divinity of love, is the hottest planet in our solar system. Its atmosphere is a thick layer of carbon dioxide that stores heat. Allowing the planet’s surface temperature to reach a scorching 880 F (471 C). Venus is slightly lesser than Earth and, like Earth’s outer core, it also has a cast iron core. “Almost every feature on the surface of Venus is name after notable women on Earth, both mythological and real,” says NASA. “A volcanic crater is name after Sacajawea, the Native American that Lewis and also, Clark led the exploration. A deep gorge is name after Diana, the Roman goddess of the hunt”. Like Mercury, no moons are orbiting Venus.
What Happened To Pluto
Our solar system has at most minor five dwarf planets: Ceres, Pluto, Eris, Haumea, and Makemake. The International Astronomical Union describes a planet as a celestial body that orbits the Sun, has sufficient gravity to assume a round or nearly round shape. And has cleared the area around its orbit.
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