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

Ubuntu bq Aquaris M10 Review Part 2: Software

In part one of our rather lengthy review, we took a look at the bq Aquaris M10 Ubuntu tablet's hardware. Suffice it to say, it perfectly played the role of a mid-range tablet. While the device had a few ups, like its lightweight design, bright display, and substantial battery, it would have been easily passed for a mediocre slab if not for the software running on it. In this round, we take a deeper look into what makes this tablet truly one of a kind, and almost literally too. This time, we take a dive into the alien world of Ubuntu Touch. Read more

Best Linux Distro: Linux for old laptops, privacy and USB sticks

Best Linux distro The best Linux distro is a matter of personal taste and use case. On the following pages, we take you through four potential Linux use cases and select the best for each. We'll look at the best overall OS for general computing, the best for an old laptop, a lightweight distro for USB drives and a privacy-focused option. Read more

Pravin Satpute: How do you Fedora?

Pravin Satpute started using Linux in 2004 when he was working with Dr. Nagarjuna Gadiraju of the Free Software Foundation of India. He was working on a project to develop libre fonts for Indian languages. At that time, he was using Knoppix with the KDE desktop. In 2006, he became interested in Fedora and starting using Red Hat Enterprise Linux (RHEL) in 2007 when he was given a laptop with RHEL 5. Quickly after receiving the laptop, he switched to Fedora 8. His childhood heroes were Steve Jobs, Ratan Tata and Sachin Tendulkar. His favorite movies are Inception and The Mummy. Read more

QNAP and Canonical Optimize Ubuntu For IoT Purposes

The Internet Of Things movement has attracted a lot of attention in recent years. Not just enthusiasts, but also major firms in the technology sector are working on developing new IoT initiatives. A Partnership between QNAP and Canonical will help optimize Ubuntu on NAS systems for Internet of Things applications. Read more