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Comment Definition bad, vote wasn't consensus (Score 1) 118

A professional astronomer here, with some things to keep in mind:
* While opinions are divided on whether or not Pluto, and other 'dwarf' planets are full-blown planets, the astrophysics community, by and large, doesn't like - or adhere to - the IAU planet definition. It restricts the use of 'planet' to the 8 bodies in the solar system, ignoring the 5,000+ confirmed exoplanets. It goes to great pains to attempt a definition of the low mass range (which it fails at), and doesn't define the high end of the mass range. And the eligibility of those 8 bodies in 'clearing their orbital zones' is ill-defined (Shoemaker-Levy 9 and the Chelyabinsk meteor have entered the chat). If you look at the scientific discourse at astrophysics meetings - eg. the recent "Extreme Solar Systems V" conference in Christchurch, NZ - astronomers use 'planet' in a much more ecumenical fashion.
* A significant number of planetary scientists - the scientific community that matters, not us astronomers - have put forth a different definition of planet. The 'geophysical definition' of a planet is basically, "big enough to be a ball" - simple, elegant, and easy to explain to schoolkids. The 'big enough to be a ball' concept is rooted in actual physics, not tempest-in-a-teacup astropolitics.
* While it was apparently of paramount importance to define 'planet', the IAU hasn't made similar moves to define 'star', or 'galaxy', or anything else.

Comment Good for education (Score 1) 92

As someone who's trying to monitor my kids while they're supposed to be doing schoolwork on their laptops, being able to see what's going on from any angle would be great. I don't necessarily have to read their screen, but being to see at a glance if they're coding versus playing Doom would be great

Comment The real reason (Score 5, Interesting) 98

I had the opportunity to ask Ed Stone, the JPL Director & Voyager scientist, this question. His rather glib answer was, "well, Titan was 3 hours away, and Pluto was 3 years away - and I had to make payroll." I think the broader answer is that JPL assumed they'd get another mission funded if they simply skipped it (and they almost did).

Comment Once again short-changing the space program (Score 1) 304

Another sad turn for our once-glorious space program. The simple motivation here? Not wanting to spend money on the landers for lunar surface access, or the base(s) we'll build once we get there. The shuttle program was short-changed grievously during its design phase, and while its design was compromised, its mission expectations were not - and this led to catastrophe. Going down the path of expecting miracles without adequate funding for them will, once again, lead to grief.

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