Here are some recent stories of interest.
—ScienceNews.org: “Passing Through the Milky Way’s Arms May Have Helped Form Earth’s Solid Ground“
Earth’s journey through the Milky Way might have helped create the planet’s first continents. Comets may have bombarded Earth every time the early solar system traveled through our galaxy’s spiral arms, a new study suggests. Those recurring barrages in turn helped trigger the formation of our planet’s continental crust, researchers propose August 23 in Geology.
—Phys.org: “Astronomers Discover Two ‘Super-Earths’ Orbiting Nearby Star“
An international team of astronomers reports the discovery of two new “super-Earth” exoplanets orbiting a nearby late-type M dwarf star. The newfound alien worlds, designated LP 890-9 b and LP 890-9 c, are slightly larger than the Earth. The finding has been published in Astronomy & Astrophysics.
—Space.com: “Germany and Japan Pledge Not to Conduct Destructive Anti-satellite Tests“
Germany and Japan have pledged not to conduct destructive anti-satellite tests that could create dangerous clouds of space debris in orbit. The announcements of these pledges were both made at the second session of the United Nations’ open-ended working group on reducing space threats, which is being held in Geneva from Sept. 12 to Sept. 16…Germany’s and Japan’s announcements follow similar pledges made by the United States, Canada and New Zealand in the wake of Russia’s irresponsible destruction of a satellite in November 2021 that created a massive cloud of space debris.