![alien-tupperware-flickr](http://grist.org/wp-content/uploads/2013/10/alien-tupperware-flickr.jpg?w=470)
original image: Steven Taschuk
Diss aliens all you want, but at least they’re saving their leftovers — in a BPA-free container, no less — instead of just adding to food waste:
A NASA spacecraft sniffing the smoggy atmosphere of Titan has found traces of the chemical used to make plastic Tupperware boxes.
The robotic Cassini probe has detected propylene on Saturn’s moon — the first time this chemical has been found out in space.
According to NASA scientist Conor Nixon, string together enough propylene and you get polypropylene, the foundation of mold-free lunches:
“That plastic container at the grocery store with the recycling code 5 on the bottom — that’s polypropylene.”
Then it’s settled. Martians — well, Saturn’s-moon-ians — don’t hunger for intergalactic domination. They just want to enjoy a fresh sandwich.
![](https://grist.org/wp-content/uploads/2013/09/guilty-pug.jpg?quality=75&strip=all&w=1024)