Shiney as new; or worked hard to clean something to make it appear as new

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.

Spit shined is used describing something shiny or brand new

An object that is most likely brighter than your future.

Using ones own saliva to give something, or someone (if you're into that) a shine that's so lustrous it makes Jesus himself turn away from its blinding reflection.

Unbelievably clean.