Sentences with phrase «transported by comets»
When it comes to life on Earth, we're not sure if it came from the outside (transported by comets) or on the inside.
https://gizmodo.com/ Not exact matches
However, gravity on the comet is also very weak, and an analysis of the forces exerted on the grains at the comet's surface shows that these thermal winds can transport centimeter - scale grains, whose presence has been confirmed by images of the ground.