Tony Franklins Other Shoe said:

---

Is Pocahantas going to claim she has syphilis now so she can prove she really is Native American?

---

Hank the Grifter said:

---

Slother93 said:

---

titan said:

---

We will have the identical problem on a far worse scale when landing on alien worlds. The moon was a bit of a freebie because virtually airless and so little risk. But that won't last when manned landings happen on worlds with atmosphere.

---

Actually….

Earth's organisms use chiral molecules, such as amino acids and sugars, in specific forms. For instance, amino acids are almost exclusively left-handed (L-form), while sugars are predominantly right-handed (D-form). Enzymes and proteins are highly stereospecific, meaning they only interact with molecules of the correct chirality.

If alien life uses the opposite chirality (e.g., D-amino acids and L-sugars), their biochemistry would be incompatible with Earth's. Enzymes and other biochemical machinery from one life form would not recognize or effectively process the molecules of the other.

---

Aww, yeah! This is great news! No condoms necessary baby!

---

SwigAg11 said:

---

Hasn't this been known forever? I remembering taking the diseases class at A&M and that was mentioned in discussion of the natives revenge for Europeans bringing smallpox.

---

Rapier108 said:

---

SwigAg11 said:

---

Hasn't this been known forever? I remembering taking the diseases class at A&M and that was mentioned in discussion of the natives revenge for Europeans bringing smallpox.

---

It has. I remember being told this when I was in high school.

---

SwigAg11 said:

---

Hasn't this been known forever? I remembering taking the diseases class at A&M and that was mentioned in discussion of the natives revenge for Europeans bringing smallpox.

---