To recap, here's all of the Spanish I've posted.:
Phil Plait es un scientifico famoso.
Phil Plait is a famous scientist.

No hay una cara en Marte, estupido!
There is not a face on Mars, you ding-dong!

SpaceShipOne esta en el museo Smithsonian en Washington.
SpaceShipOne is in the Smithsonian museum in Washington.

Estas un cobarde, un mentroso, y un ladron!
You are a coward, a liar...

un moquete
A punch in the face

No existen fantasmas.
Ghosts do not exist.

Hola, me llamo x. Como se llama?
Hello, my name is x. What is your name? (Litterally "What do you call yourself?")

Prende el televisor! Neil Tyson esta en las noticias!
Turn on the TV! Neil Tyson is on the news!

One more:
La placa de Voyager tiene muchas lenguas.
The Voyager plaque has many languages.

__________________
I want to go back to the moon.
I don't care which rocket you use, whichever one you pick, I'll like it, I swear.
"If you think the LHC will create black holes, you might as well believe Hobbits are at the bottom of your garden."- Dr. Mike Inglis
Rovers forever! - ToSeek