Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. Many Americans grew up with this as the definitive planetary lineup and created clever mnemonic devices to memorize them in ...

Pluto is beautiful, interesting and worthy of more exploration, but it's not a planet. That's the opinion of UBC astrophysics professor, Jaymie Matthews. And he warns that if the movement to make ...

This paradigm shift had to do with a discovery that was made around that time. It was Eris, another Pluto-sized body also in the Kuiper Belt, and one of the largest bodies in the solar system not to ...

The debate over Pluto’s planetary status has been ongoing since its reclassification as a “dwarf planet” in 2006 by the International Astronomical Union (IAU). Recent discussions and new scientific ...

TORONTO – In just over one month, a tiny dot in the heavens — a dot that has caused a lot of controversy among astronomers over the past nine years — will reveal itself. The New Horizons mission is ...

So eulogized Caltech planetary astronomer Mike Brown in August, 2006. The International Astronomical Union had just voted overwhelmingly to kick Pluto out of the Sun’s family of planets and designate ...

On July 14, 2015 the New Horizons spacecraft sped past the dwarf planet Pluto at 14 km per second, after a nine-year journey of almost 5 billion kilometres. The probe contains an array of scientific ...

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