Language Selection

English French German Italian Portuguese Spanish

Pluto: And then there were eight

Filed under
Sci/Tech

Pluto has just been demoted. The celestial body, long known as one of the nine planets of the solar system, will now be considered a "dwarf planet," the General Assembly of the 2006 International Astronomical Union ruled in a vote Thursday in Prague, Czech Republic.

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune will be defined as "classical planets."

The IAU said in a statement on Thursday that the definition for planet is now officially "a celestial body that (a) is in orbit around the Sun, (Cool has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape and (c) has cleared the neighborhood around its orbit."

Full Story.

Textbook makers grapple with Pluto demotion.

Stick to Computer Rants

As any high school physics student will tell you, CENTRIPETAL FORCE is what influences the orbital path.

MASS is completely INDEPENDENT of size or distance from the sun (or any other body in the universe).

The boundaries of the Universe has NOTHING to do with how far something is from our Sun.

I think it's safe to say that even on a bad day, an Astrophysicist has a better understanding of simple physics then you do.

The new planetary definition has nothing to do with physics and everything to do with nomenclature. As more and more orbiting bodies are found within our solar system, as well as in other star systems, the IAU wanted a more accurate way of defining what that body is. Since the original definitions predated Newton, I'd say it was about time to bring things up to date.

I feel sad for Pluto. I

I feel sad for Pluto. I think that they should keep Pluto as a planet if only for the more than 75 years of being known as one. They could easily correct its status by way of explanation in text books.It can be taught in schools that Pluto is not really a planet according to the new definition, but it will be kept in the list of 9 major planets. Then new discoveries can be placed in subgroups like "dawrf planets"and other terms they came up with. Or if they're going to remove Pluto, might as well use the term "plutonian objects"; sort of like a tribute.

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

More in Tux Machines

Leftovers: Ubuntu

  • Canonical, Snappy and the marketing value of collaboration
    Canonical implies it is collaborating with nearly every major Linux distro for its Snappy project. It is not. And what could have been a marketing win for it is now a loss.
  • How to install MongoDB community edition on Ubuntu Linux
    MongoDB is a NoSQL database that avoids the traditional structure of relational databases in favor of document-oriented JSON-like objects. What this translates to is the integration between application and data is faster and easier. If that's not enough, consider this: MongoDB is one the databases preferred by big data and large enterprise companies, including Adobe, Craigslist, eBay, FIFA, Foursquare, and LinkedIn.
  • No WhatsApp, but fixes set to come for Ubuntu Phone
    Users of the Ubuntu Phone will have to get used to the fact that popular Android apps like WhatsApp are unlikely to be made available for the platform, at least not in in the short term. Facebook owns WhatsApp and the communications app now has more than a billion users.
  • Ubuntu Developers Discuss Again About Dropping Support For 32-bit x86
    Ubuntu developers are once again pondering the possibility of dropping support for i386 (32-bit x86) as installation media for their Linux distribution. The matter of dropping Ubuntu i386 ISOs has been brought up many times the past few years, but ultimately it's kept getting pushed back for users still running Ubuntu Linux on old hardware and other reasons. Dropping Ubuntu for i386 keeps getting brought up namely for the installer media rather than the i386 package archive itself.

Sabayon 16.07 Ships with Linux Kernel 4.6.3, Introduces the First LXQt Flavor

Today, June 28, 2016, the developers of the Gentoo-based Sabayon Linux computer operating system have had the great pleasure of announcing the general availability of new respin ISO images for the month of July 2016. Right on the schedule, Sabayon 16.07 Live ISO images are now available for download, switching the OS to the latest Linux 4.6.3 kernel from the deprecated Linux 4.5 branch that shipped with the May ISO respins of the GNU/Linux distribution, Sabayon 16.05. Read more

Android Apps Turn Chromebooks Into Macbook Killers

  • Android Apps Turn Chromebooks Into Macbook Killers
    When Chromebooks launched in the summer of 2011, they seemed destined to fail, much like the underpowered, internet-dependent netbooks that came before them. But in the five years since, Chromebooks have defied expectations, becoming the most used device in US classrooms and even outselling Macs for the first time this year. Still, people complain about their inability to run useful software, but that’s all about to change.
  • Android apps could turn Chromebooks into MacBook killers

today's leftovers

  • Permabit Debuts Only Complete Data Reduction for the Linux Storage Stack
    Permabit Technology Corporation, the leader in data reduction technology, today announced the latest release of its Virtual Data Optimizer (VDO) software, VDO 6. The newest release of VDO delivers the company's patented deduplication, HIOPS Compression™ and thin provisioning in a commercial software package for Linux, expanding availability beyond the OEM marketplace to include the leading Professional Services organizations that are enabling today's modern Hybrid Cloud data centers.
  • My KIWI/OBS talk from oSC'16
    Last Friday, at openSUSE Conference 2016, I was giving a talk together with Christian Schneemann about KIWI and OBS (the events.opensuse.org software is not able to manage "two speakers for one talk", this is why I am not listed in the schedule).
  • AppliedMicro Announces the Availability of its Mudan Storage Platform at Red Hat Summit 2016
  • AsteroidOS smartwatch OS wants you, developers
    AsteroidOS is a new open source operating system specifically designed to serve software application development on smartwatches. The project is now gaining some traction and has been reported to now be looking for developer and community contribution engagement.