At www.jpl.nasa.gov/news/news/php … a few days ago (see also www.sciencedaily.com/releases/2019/03/190328170639.htm … and https://solarsystem.nasa.gov/cassini …). NASAs Cassini mission has found Saturn's rings coat tiny moons – or rather, five small moons nestled in and near the rings, with material. The surface of these moons are covered with material originating from the rings.
At www.sciencedaily.com/releases/2019/03/190327142018.htm … rivers on Mars. Possibly until fairly recent times.
At http://spaceweather.com (28th March, 2019) … can humans sense magnetic storms? A study in the journal eNeuro suggests changes in Earth's magnetic field can suppress alpha waves in the human brain.