There are 8 worlds in the planetary system, and each journeys by itself course around the sun. Of these worlds, which is nearby to the sun?

Mercury is the closest world to the sun, followed by Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Mercury orbits at just 0.387 huge systems(AU)or about 36 million miles( 58 million kilometers ), from our star, typically. For contrast, Earth is 1 AU from the sun, and Neptune is a massive 30 AU from our star.

Mercury is a weird little world. There are some craters on its surface area that never ever see sunshine. It likewise has the most severe temperature levels of any world in the planetary system. Temperature levels there can vary from minus 300 degrees Fahrenheit (minus 184 degrees Celsius)– nearly two times as cold as the most freezing location in the Arctic– to over 800 F (427 C), which is hotter than a pizza oven.

“One might think Mercury is very hot all the time because it’s so close to the sun,” Maria Vincentan astronomer at the University of Hawaii, informed Live Science. “But it’s not — instead, the side of Mercury facing the sun is ultrahot, and the night side is freezing cold.”

“This is because Mercury has no atmosphere to regulate the temperature,” Vincent stated. “Its gravitational force is just too little to hold on to a blanket of air around it, and even if an atmosphere did form, intense radiation from the close by sun and subsequent solar wind would have stripped it all away.”

Remarkably, in spite of being further from the sun, Venus is really hotter than Mercury. This is due to the fact that Venus does have an exceptionally thick blanket of air, which traps a lot heat around the world that its surface area can reach 900 F (482 C).

On Mercury, the hot days are likewise extremely long. Due to the fact that Mercury turns so gradually– when every 58 Earth days– in some locations, the sun can appear overhead for weeks at a timeA year on Mercury is just 1.5 Mercurian days, or 88 Earth days. These severe temperature levels, to name a few aspects, make life as we understand it difficult on Mercury. “The extreme weather conditions do not allow for the planet to have liquid water, which is the basis of habitability as we know it,” Vincent stated.