Nice, Ruth Anthony-Gardner - medicine that actually works is something that will never cease to amaze me either.
Mars once had an ocean covering 20% of it's surface. Article: http://www.nasa.gov/press/2015/march/nasa-research-suggests-mars-on... Video: https://www.youtube.com/watch?v=WH8kHncLZwM&feature=youtu.be
5 hours ago
Learning more & more all the time.
3 hours ago