Feb 5, 2011

Lots and Lots of Alien Planets?


 NASA's space telescope found lots of planets that could harbor life- 54 of them. This is probably like the one NASA found a few months ago, which was in the so-called "Goldilocks zone" which isn't too far or too close to the star it's orbiting, and so might have liquid water and a temperature that's not too cold or too hot.
 But still, Kepler's only covered one-400th of the whole galaxy, so there might be...
54 times 400=21,600 planets could have liquid water!
And in those 21,600, how much would harbor life...?

Jan 31, 2011

Saturn; the ringed planet

Saturn is the 6th planet from the sun in our solar system.
It's made from gas-mostly hydrogen and helium.
This planet's probably most famous for the ring. It's really magnificent. It's made from small chunks of ice and rocks. The ring's so wide, you can fit 5 Earths in it! But the thickness is just a few hundred feet. Speaking of which, Saturn is like, humongous. Look at this photo comparing sizes!
Though this planet is huge, it completes its rotation in 10.7 hours. Because of the fast rotating, a centrifugal force works on the planet and it looks like it was squashed a  bit from the poles.

Jan 30, 2011

Went to the Air&Space exibit in Tokyo

I went to this museum called the National Museum of Nature and Science, which is in Tokyo, yesterday. There was a special exhibit called "Air&Space; 100 years of dream"(rough translation, sorry) going on and so went to see it.
There was a real-life sized model of Hayabusa(click here to go to my page about it; sorry, I'll write part 2 of this Hayabusa article soon) I was surprised at how big it was- I was expecting a trash can sized object. You can see the 4 revolutionary ion engines on the spacecraft.
This flimsy-looking film is part of "Ikaros", a prototype of a space sailing ship. It uses sunlight to propel itself in space, and the film thing is the "sail". What's so good about using this is that you actually don't need fuel!(this is the official site for the project.)

This is the HTV(click here to see my article about it)


Also, there were some cool stuff in the permanent exhibits too.
These are moon rocks Apollo took from the moon! Apollo 11 on the right, Apollo 17 on the left.