That's why Pluto is not a planet
And why many experts say it still should be a
As Joni Mitchell pointed out, "You do not know what you had" until it's gone. "Nowhere is no longer apparent than in the solar system.
Sure, day after day, most of us probably do not think much aboutThe massive celestial corpores This shares this corner of the universe with us. I imagine that most of us took for granted that there were nine planets - a fact, it was once irreproachable that "the sun rises to the east" and that nothing can be said to be certain except death and taxes. "But all this changed in 2006, when scientists decided to deposit Pluto from his planet status practically one night, which simply made him a "dwarf planet".
Pluto, once the smallest of the nine planets of the solar system, was also the last discovery, spotted by 23-year-old Astronomer, Clyde Tombaugh, in 1930. He arrived at the Lowell Observatory in Flagstaff, Arizona, with The specific mission to find the ninth ninth "planet x", and after a year to photograph the night sky, preview the moving object that would apply as Pluto (a name that British Schoolgirl of 11, Venetia Burney had proposed) .
The discovery was celebrated and greeted by the public and when it was estimated at the size of the Earth. But doubts were soon launched on the size of this new icy planet (in 1948, it was estimated that one-tenth of the size of the earth, then a hundredth of the size by 1976 and a 650eOnly two years later) and its classification.
According toInternational Astronomical Union (IAU), which has supervised the denomination and definitions of planetary bodies and their satellites since the early 1900s, a planet must (1) orbit the sun and no other object, (2) have sufficient mass to be almost round and ( 3) removed debris and small objects from the area around its orbit. It is this last rule that has created problems for Pluto.
Starting in 1992, a number of other objects began to be spotted in the same part of the solar system as Pluto, and it was determined to be part of a group of donut-shaped objects that would be called The kisk belt. What was worse: many of these objects were almost as big as Pluto. Which eventually led to Pluto losing its classification as a planet was the discovery of July 29, 2005, by Caltech Astronomer Mike Brown-of Eris, an object larger than Pluto himself. The following year, the IUU determined that Pluto did not respond to the third criterion and should be reclassified, with Eris, his dysnomy of the moon and many other big but notthisLarge planetary bodies like a "dwarf planet". It has been removed from the planetary models of schools, museums and more.
The decision was not without its own controversy. A number of scientists protested the IAU decision. The House of Representatives in New Mexico (where Pluto Discoverer Tombaugh was a longtime resident) adopted a resolution declared Pluto would be considered a planet within the state. More recently, astronauts aboard the new Horizons mission in Pluto captured images of its rich and proposed surface in theirsubsequent bookthat the celestial body must be reinstated as a planet.
But for the moment, at least, the IUI remains unconvinced. OfOfficial Blog of the Organization"These results raise fundamental questions about how a small cold planet can remain active at the age of the solar system.They demonstrate that dwarf planets can be just as scientifically interesting as planets. It is equally important that the three main Kuiper belt bodies visited by the Spatial-Pluto, Charon and Triton vessel are more different than similar, testify to potential diversity while waiting for the exploration of their kingdom. "And if you want to know more about space, here's30 reasons why the ocean is more frightening than space.
To discover more incredible secrets about the life of your best life,Click hereTo follow you on Instagram!
