A mediocre horror movie with plenty of blood, but not enough ass. The basic plot is as follows:

"Hey guys, lets go spelunking....who's this butch that every viewer is going to think is a lesbian, but because it is a below-average movie, we are going to deny them the gratification of seeing girl on girl action deep underground? And wtf.. we're getting chased by mutant miners? Ok i'll buy that.. so apparently, after escapting from the cave, the ghost of my previously wtfpwned daughter suddenly appears in my car! Liek OMG!

The safeguarding of Earth and other worlds from biological cross-contamination (i.e. billionaires with too much time on their hands).

Also known as “planetary protection.” Planetary protection / quarantine “reflects both the unknown nature of the space environment and the desire of the scientific community to preserve the pristine nature of celestial bodies until they can be studied in detail.”

There are two types of interplanetary contamination. Forward contamination is the transfer of viable organisms from Earth to another celestial body. Back contamination is the transfer of extraterrestrial organisms, if such exist, back to the Earth's biosphere.