Planet Pluto

Today is historic.  Nasa’s New Horizon’s spacecraft, after 9 years of travel, will provide the closet views of  Pluto that were not available before this day. The biggest surprises are that Pluto, like Mars, has a reddish hue, it has a heart-shape on it’s surface, and it’s larger than previously thought. New Horizons was launched in 2006. Pluto was dethroned to a dwarf-planet or “plutoid” and officially has an asteroid number. It didn’t qualify as a planet because of its size and orbit. Astronomers had clear qualifications for planets. It has to  orbit around the Sun, be large enough to have a round shape, and no other objects can be in its orbit. Today’s evidence from New Horizon’s photos hopefully will reinstate Pluto’s status as a planet.

The probe will continue through the solar system after this quick flypast of Pluto.

2 Comments

Filed under Astronomy

2 responses to “Planet Pluto

  1. It’s high time we put Pluto back on the planet list!

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