[butlike]

If: extra-terrestrial life exists

How can we, with any certainty, guarantee the human remains won't be a virus or viralphage to them?

I think we should pause and think about jettisoning organic material into space.

[mr_toad]

Viruses rely heavily on cellular machinery for replication, and whatever machinery alien lifeforms have is likely to be too different for the virus to propagate.

Bacteria might be more likely to survive in an alien environment.