Water

25 May 2019

Yesterday we had a post on the idea a collision with a proto planet led to the formation of the Moon and provided the Earth with abundant water. Today, at www.jpl.nasa.gov/news/news.php?feature=7409 ... we are told NASAs SOFIA mission has found evidence that water in some comets is similar to water in Earth's oceans. This reinvigorates the theory that comets played a major role in delivery of water to Earth, many moons ago. SOFIA = the Stratospheric Observatory for Infrared Astronomy, which made observations of Comet Wirkonen back in December of 2018. We have identified a vast reservoir of earth like water regions of the solar system, we are told, and water is crucial for the development of life.

At https://phys.org/news/2019-05-unique-explore-black-holes.html ... a unique experiment is in the offing in order to explore black holes - especailly the merging of black holes. ESA has drawn up a timetable for missions to explore black holes further (via X-ray telescopes) and gravitational waves.

At https://phys.org/news/2019-05-phase-transitions-math-music.html .... an interesting post on the mathematics of music. Phase transitions applied to music - order out of disorder. The ordered structure of music is the focus of a research paper in Science Advances (May 2019). The claim is that this is a universal principle.