A powerful ray or beam of energy that pulls objects into the emitter; a manipulation of graviational force around a selected object.

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.

When a person walks past a TV/computer screen and stops mid-stance to stare at whatever is on the screen, instead of continuing on to his destination. Appears to have been pulled in by the tractor beam of the screen and is unable to move or think.

Tractor Beams are the hairs that grow around the anus which can often capture "Klingons".

A person who sucks you into a stupid conversation, and you can't break away for a long period of time.