Used to indicate that the speaker is interested in doing whatever has just been suggested. Similar to "I'm up for that."

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.

An phrase expressing one's willingness to participate in a given activity.

I'm with you, meaning that you agree to do something with someone.

willing to do something

I would be interested in following up on your suggestion.
Let us progress.

"Im game"...its another way of saying..."Im Down"..."Im Ready"..