Accidentally Bringing Life from Earth to Mars?

In our quest to unlock the secrets of Mars and search for extraterrestrial life we need to keep planetary protection in mind. NASA Astronaut Jeff Hoffman explains the intricacies of planetary protection and what protections we can put in place as we prepare Martian samples back to Earth.

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[PamelaAnn]

So wise to exercise such care and caution.

[salinagrrrl]

"Andromeda Strain" 1971 the only sci-fi flick to scare me.

[ebin]

"Will never get to the surface of the earth" sounds more like foreshadowing instead of a promise.

[FaSquad]

Im more worried about ancient bacteria in the ice shelves

[QuickcatMK]

One solution to the fermi paradox is a deadly bug on another world…

[JGreyJens]

Fascinating 😍 I love science!
Can't wait for what kind of discoveries we will maker in the future

[mfaizsyahmi]

We can do genetic testing on samples to see how far back in time they diverged from a common ancestor. If the sample from mars is nearly 100% genetically identical with Earth's then we can be close to 100% certain that one hitched a ride from Earth to Mars and back.

[billwonders]

With all the unknown things flying around our sky, it's incredible that people still talk about whether there are germs on Mars.

[sicmesicme]

Great to know that NASA thinks out possibilities that may impact planerary lives in many years to come 🙏

[JeffreyWLaRue]

a special lab should be set up on the moon to Examine the Samples from

[jfletchstud]

Worked on this problem as an intern years back when Mars Sample Return was just getting introduced alongside Perseverance. If my memory serves correctly, I had to flag any chances that a unsterilized spec of “dirt” could reach Earth’s biosphere within 1 and 1, 000, 000 odds given the models I was dealing with. Pretty fun

[tehscope]

Build a special module for the ISS and take the Mars sample to it .

[ChinaChuck]

Fascinating. I was hooked watching that. Nice loop! 👍🏼

[detroitboy]

The one fact that most people ignore when they imagine alien contagions is that any organism that grows on another planet would be so different genetically from Earth life that it probably could not survive for the inability to infect life here.

[MAFIA]

All life on our planet came from space as single celled organisms as the crust became hospitable..No being MADE us here and its crazy that ppl believe that...

[museumofscience]

With the possibility of life on Mars, planetary protection becomes crucial. Do you believe it's worth the risk to search for extraterrestrial life, even if it means potential contamination and consequences for Earth?

[dmo]

I like how the robot kind of looks like Wall-E

[dr.karmichaelandjones]

Can we just send all the flat earthers to Mars?

[JackForrest]

I never thought about that until now, and now I'm terrified.

[jacobemming]

It's hardly ever in the movies but if there is life outside of this world that's even remotely similar to life here there is absolutely no telling what kinds of diseases could be spread that there are no immunities to.