Pluto a planet, and so are over 100 celestial bodies

Haze around Pluto appears blue in this image captured by New Horizons and processed to replicate the color a human eye would see

Now, scientists believe that "big" objects found in the Kuiper Belt as well as around the current planets should also be classified as planets, which would mean a drastic change for our solar system, which has remained relatively the same for most of its history. But Runyon argues that Pluto needs to be considered as a planet because it has all the on goings happening on the surface which could be found on other planets.

"It really takes blinders to not look at the solar system and see the profound differences between the eight planets in their stately circular orbits and then the millions and millions of tiny bodies flitting in and out between the planets and being tossed around by them".

"A simple paraphrase of our planet definition - especially suitable for elementary school students - could be, 'round objects in space that are smaller than stars", they add.

Stern points out several flaws in the IAU definition: it doesn't include "rogue planets" with no star to orbit, it requires planets to "clear their neighborhoods", which is impossible to do entirely since small objects are constantly entering and exiting planetary orbits, and it excludes dwarf planets while allowing radically different bodies like Mercury and Jupiter to enjoy planetary status.

The subject of what can be defined as a planet and the subsequent decision to demote Pluto as a non-planet by the IAU (International Astronomical Union) was a topic of debate and much deliberation in the scientific community. More than 10 years later, some scientists want Pluto to get its old title back.

Consequently Runyon and colleagues want to define a planet as "a sub-stellar mass body that has never undergone nuclear fusion" and that has enough gravitational heft to maintain a roughly round shape.

More news: Biren Singh to take floor test in Manipur assembly today
More news: US Lawmaker: 'No Evidence Of Collusion' Between Trump Campaign, Russia
More news: Fed ahead; Dutch vote in focus

This NASA's photo of Pluto was made from four images from New Horizons' Long Range Reconnaissance Imager (LORRI) combined with color data from the Ralph instrument in this enhanced color global view released on July 24, 2015. The six-member team led by scientist Kirby Runyon are pitching to have 100 celestial bodies categorised as planets.

Icy, rocky Pluto had been the smallest of the nine planets; its diameter under three-quarters that of the moon and almost a fifth of Earth.

Otherwise Pluto does fit the IAU definition - it orbits the sun and it is massive enough that the forces of gravity have made it round. Most are closely affiliated with geology and other geosciences, thus making the new geophysical definition more useful than the IAU's astronomical definition. But that is now being monitored, says Timothy Dowling, an atmospheric scientist at the University of Louisville in Kentucky, who was not involved in the new work.

Io, Jupiter's innermost satellite, would also become a planet.

Additional authors of the paper are from the Southwest Research Institute, the National Optical Astronomy Observatory, the Lowell Observatory, and George Mason University.

Related News:

  • 'Piggy bank' turtle slips into coma after op to remove coins

    'Piggy bank' turtle slips into coma after op to remove coins

    Omsin lived for two decades in the pond, with visitors tossing coins into the water, seeking to "make merit" or good luck. Eventually, the money formed a weight that cracked Bank's shell. "She is my friend, teacher and patient", said Dr.
    Trump Walking Out On UN's Human Rights Council

    Trump Walking Out On UN's Human Rights Council

    The United States will vote against every resolution by the council regarding Israel, the department announced . In remarks during her confirmation hearing, U.S.
    Netflix testing 'skip intro' feature that cuts off opening credits

    Netflix testing 'skip intro' feature that cuts off opening credits

    Netflix merely told The Verge that " We perform hundreds of tests every year to help make the Netflix member experience better ". We all know that binge-watching is serious business, and there's no time to waste when taking in your favorite shows.
  • ARM announces its flexible DynamIQ microarchitecture

    ARM announces its flexible DynamIQ microarchitecture

    This will help ARM move into markets beyond mobile, Nayampally explained, particularly as the demand for compute speeds up. For every industry ARM expects DynamIQ to touch, artificial intelligence is expected to play a key role.
    Gold, silver trade higher in early trade

    Gold, silver trade higher in early trade

    United States stocks closed higher on Wednesday, as oil prices bounced back and the Fed took a less hawkish stance than expected. Citizens of the Netherlands voted yesterday, Wednesday 15 March, and the outcome may have a huge impact on the exchange rate.

    ESPN Host Picks South Dakota State to Upset Gonzaga

    Many sports analysts expect Gonzaga to make it to the Final Four, but that doesn't mean it will be easy for the team. The Bulldogs lost that year in the round of 32 by eventual Final Four team Wichita State.
  • Family saw livestream of missing teen's sexual assault

    A missing 15-year-old girl who was sexually assaulted during a Facebook Live stream has been reunited with her mother. This is the second notorious Facebook Live case of violence to hit the Chicago area in the past few months.
    Palestinians give award to United Nations  official who condemned Israel

    Palestinians give award to United Nations official who condemned Israel

    US Ambassador to the UN, Nikki Haley, reacted to Khalaf's resignation and said it was appropriate, Reuters reported. Israel and the United States did not immediately respond to a request for comment on Khalaf's letter.
    Small planes collide above busy shopping mall

    Small planes collide above busy shopping mall

    One pilot is dead and the other is in hospital, and two bystanders had minor stress-related injuries, they confirmed. It's unclear what caused the crash. "I heard the motor so low to the ground and then a loud boom", he said.
  • Men Charged In Paterson 'RHONJ' Car Fire Homicide

    Men Charged In Paterson 'RHONJ' Car Fire Homicide

    Police have identified the two men shot and burned to death in Real Housewives of New Jersey star Kim DePaola's vehicle . Valdes said the deaths have been ruled a homicide and that the investigation is ongoing.

    Billionaire banking boss David Rockefeller dies aged 101

    On the occasion of his 100th birthday in 2015, the BBC reports , he donated 1,000 acres of land to the state of Maine. He also headed what is now JP Morgan Chase (JPM) in the 1970s, expanding the bank's reach internationally.
    Cheltenham Gold Cup - Shaggy's Hot Tip

    Cheltenham Gold Cup - Shaggy's Hot Tip

    Jonjo O'Neill was thrilled with the way Minella Rocco ran on to finish second in Friday's Timico Cheltenham Gold Cup. This is the jewel in the crown--the race I've listened to and watched all my life", she continued.

Most liked

Bombay HC asks protesting doctors to resume duty immediately
The doctors said their first demand of allowing only two relatives with one patient should be implemented in all hospitals. With this, the Bombay High Court ordered the striking resident doctors to join work or face action by the management.

Turner, NCAA Team on March Madness Live VR App
Additionally, NCAA March Madness Live garnered 29 million live video starts over the first full Thursday, up 19% over past year . Intel noted that Intel Tru VR is the new brand to emerge from the Voke acquisition.

Ivanka Trump is moving into the White House
First daughter Ivanka Trump is getting a bigger role in her father President Donald Trump's administration. Officials noted that she will "follow the same ethics restrictions that apply to government employees".

"We deeply apologize": Google bows to advertiser pressure with new hate controls
He added that as well as removing content , its YouTube team would revisit the guidelines on allowable videos. Google is taking further steps to prevent ads from appearing next to hateful content .

Gold futures rise as traders prepare for United Kingdom leaving EU
Oil prices rose in Asia on expectations that an OPEC-led production cut to prop up the market could be extended. Dow Jones Industrial Average rose by 20.51 points, or 0.1 percent as of 1710 GMT.

Uber president Jeff Jones resigns
Liane Hornsey, Uber's new head of human resources, said more than 100 "listening sessions" had taken place across the company. Huffington said Kalanick is honest that he wants the incoming COO to be a true partner with him.

Death toll climbs to 72 as floods, mudslides hit Peru
But at least one person spotted her, pointing and shouting: "A person!" Rescuers were searching Friday for survivors. Embassy helicopters typically used to eradicate coca crops in the Amazon were redirected to help in rescue efforts.

White House in lock down after auto bomb scare
A Secret Service official speaking on condition of anonymity said the person was not found to be carrying any weapons. A robot was said to be inspecting the trunk of the suspect's vehicle, which was still parked outside the White House.

Kuznetsova, Vesnina set up all-Russian final
Mladenovic wasted a slew of opportunities, squandering nine break points as she fell behind 1-5 in the opening set. Neither Mladenovic nor Wozniacki had dropped a set before their quarterfinal. "I needed a match like this".

Kim Jong-nam's embalmed body can remain from rotting for three months
He said any decision will be subject to negotiations between the two countries amid a diplomatic standoff over the killing. Nonetheless, Pyongyang continued to deny the claims, referring to the victim only by the name in his passport, Kim Chol.

Merkel says looking forward to meeting Trump in Washington - paper
You look at China, virtually any country we do business with, it's not exactly good for our workers. Mr Trump said he did not believe in isolationism, but that trade policy should be fairer.

Sturgeon: May's Stance on 2nd Scottish Independence Vote Unsustainable
The only other way the reserved matters in the Scotland Act can be amended would be through an Act of the UK Parliament. Theresa May would be ill-advised to stand in the way".

Nikkei ekes out small gains after Fed; Fast Retailing falls
The Netherlands has its own election this week, where politicians have also railed against the European Union and immigrants. The British government, meanwhile, has been cleared by parliament to formally begin the process of exiting the EU.

Charges against alleged Canadian Yahoo hacker may be 'politically motivated,' lawyer says
Belan, also known as "Magg", was born in Latvia but holds a Russian passport, according to the Federal Bureau of Investigation . A separate, larger breach of 1 billion accounts occurred in 2013 but was only disclosed by the company three months ago.

McDonald's Calls Trump "Disgusting" in Hacked Tweet
The tweet called Trump a disgusting excuse of a president and made fun of his seemingly tiny hands. McDonald's also has a consumer-facing Twitter account, which has 3.39 million followers.

Most Commented