Pluto is not a planet because a planet must: orbit the Sun; have sufficient mass to be round; not be a moon of another object; have removed small objects from the area around its orbit. In 2006 the IAS declared that Pluto had not cleared the area around its orbit, so it was reclassified as a dwarf planet.
Pluto is now classified as a dwarf planet because, while it is large enough to have become spherical, it is not big enough to exert its orbital dominance and clear the neighborhood surrounding its orbit.
Pluto follows the first two rules: It is round, and it orbits the sun. It does not, however, follow the third rule. It has not yet cleared the neighborhood of its orbit in space. Because it does not follow this rule, Pluto is no longer considered a planet.
Discovered in 1930, Pluto was long considered our solar system's ninth planet. But after the discovery of similar intriguing worlds deeper in the distant Kuiper Belt, icy Pluto was reclassified as a dwarf planet. Pluto is only about 1,400 miles wide.
Pluto is not a planet because a planet must: orbit the Sun; have sufficient mass to be round; not be a moon of another object; have removed small objects from the area around its orbit. In 2006 the IAS declared that Pluto had not cleared the area around its orbit, so it was reclassified as a dwarf planet.
As such, there is simply no way life could survive on the surface of Pluto. Between the extreme cold, low atmospheric pressure, and constant changes in the atmosphere, no known organism could survive. However, that does not rule out the possibility of life being found inside the planet.
But all of that just changed, After years of deliberation, the IAU announced in a press release that they have reclassified the icy world—they upgraded Pluto back to its proper standing as a planet. "We simply underestimated the public's attachment to Pluto.
Pluto is the ninth largest object orbiting the Sun and was known as the ninth planet until 2006 when the definition of a planet was changed, and it was reclassified as a dwarf planet.
The eight planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Mercury is closest to the Sun. Neptune is the farthest. Planets, asteroids, and comets orbit our Sun.
It is the smallest orbiting body in the solar system. Explanation: Pluto is an icy dwarf planet and is the biggest known object in the "Kuiper belt" & was the "smallest planet" in the Solar System. However, it is considered a dwarf planet at approximately 1/6th the mass of Earth's moon.
Pluto was discovered in 1930, the first object in the Kuiper belt. It was immediately hailed as the ninth planet, but it was always the odd object out, and its planetary status was questioned when it was found to be much smaller than expected.
Its mass is much less than the combined mass of the other objects in its orbit: 0.07 times. Earth, by contrast, is 1.7 million times the remaining mass in its orbit (excluding the moon). The IAU also decided that bodies which, like Pluto, meet criteria 1 and 2 but do not meet criterion 3, would be called dwarf planets.
Pluto's brief life as a planet was over, dead at age 76. Rest in Peace signs for Pluto near the Smithsonian. Along with Eris and Ceres, an asteroid between Mars and Jupiter, Pluto was reclassified as a “dwarf planet.” (In 2008, the IAU also added Makemake and Haumea to its list of recognized dwarf planets.)
However, western and modern astrologers consider Pluto as an important planet in astrology. Pluto's energy is very subtle with it being far away from the sun, but it can play an important role in influencing the zodiac signs. Pluto symbolises regeneration, transformation rebirth.
Venetia Burney Phair was an accountant and taught economics and math in England. But she will best be remembered for what she accomplished at age 11 – giving Pluto its name. In an interview with NASA in January 2006, Phair said she offered the name Pluto over breakfast with her mother and grandfather.
Pluto is the largest known dwarf planet in the solar system and used to be considered the ninth and most distant planet from the sun.
The existence of this distant world is only theoretical at this point and no direct observation of the object nicknamed "Planet 9" have been made.
Human travel to Pluto is out of the question, at least in the near future. It would take too long and be too hard to pack things like food for so many years. We need to be able to travel faster so the trip won't take so long.
The main constituent is molecular nitrogen, (N2) the same as on Earth. Molecules of methane and carbon monoxide have also been detected at Pluto. But no oxygen has been detected at Pluto yet.
Flexi Says: Right now and for the foreseeable future, humans can only live on Earth. Humans have not traveled very far into space. The Moon is the only other place humans have visited. No other planet in our solar system currently has the conditions to support life as we know it on Earth.