News Digging > Technology > This Week in Space: a Comet, a Cosmological Wall, and a Very Cold Chamaeleon
This Week in Space: a Comet, a Cosmological Wall, and a Very Cold Chamaeleon
This Week in Space: a Comet, a Cosmological Wall, and a Very Cold Chamaeleon,This week in space: experimental rocket engines, galaxies galore, an enormous map, and the coldest ice ever.

This Week in Space: a Comet, a Cosmological Wall, and a Very Cold Chamaeleon

This week in space: experimental rocket engines, galaxies galore, an enormous map, and the coldest ice ever.