Water freezes fast when exposed to the #vacuum of #space but salty brine might last for an hour:  
<br />#NASA #astronomy
<br /><a href='https://www.jpl.nasa.gov/news/lab-work-digs-into-gullies-seen-on-giant-asteroid-vesta-by-nasas-dawn/'>https://www.jpl.nasa.gov/news/lab-work-digs-into-gullies-seen-on-giant-asteroid-vesta-by-nasas-dawn/</a>