New evidence suggests the Moon holds more water than ever previously believed

Illustration depicting how magma in ancient volcanic deposits on the Moon contains more water than expected. Image Credit: Olga Prilipko Huber

To some people, the Moon can seem like a rather boring place – gray, dusty and covered in craters. It is also usually thought to be bone dry, not the first place that comes to mind when you hear about water elsewhere in the Solar System, and for the most part that may be true, but now new evidence shows that the Moon may be a lot wetter in its interior than previously known.

Read MoreNew evidence suggests the Moon holds more water than ever previously believed

The saline slopes of Mars: NASA confirms evidence for flowing liquid water

False-colour image of RSL on slopes in Hale crater. The blue colour is thought not to be related to their formation, but instead are from the presence of the mineral pyroxene. The image is produced by draping an orthorectified (Infrared-Red-Blue/Green(IRB)) false colour image (ESP_030570_1440) on a Digital Terrain Model (DTM) of the same site produced by High Resolution Imaging Science Experiment (University of Arizona). Vertical exaggeration is 1.5. Image Credit: NASA/JPL/University of Arizona
False-colour image of RSL on slopes in Hale crater. The blue colour is thought not to be related to their formation, but instead are from the presence of the mineral pyroxene. The image is produced by draping an orthorectified (Infrared-Red-Blue/Green(IRB)) false colour image (ESP_030570_1440) on a Digital Terrain Model (DTM) of the same site produced by High Resolution Imaging Science Experiment (University of Arizona). Vertical exaggeration is 1.5.
Image Credit: NASA/JPL/University of Arizona

In a finding that is sure to fuel the ongoing debate about possible life on Mars, NASA announced yesterday the confirmation that intriguing seasonal dark streaks running down Sun-facing slopes are indeed flows of liquid water. The water is salty (briny), but just the fact that it is current liquid water, albeit transient and in relatively small amounts, is still big news.

Read MoreThe saline slopes of Mars: NASA confirms evidence for flowing liquid water