CaptainDork writes: A British gun enthusiast whose friends were banned from Facebook for posting pictures of firearms has started his own version of the site for gun lovers.
Called Gunbook, it was set up by David Scott, a 57-year-old shooting instructor who lives in Kilsyth, 20 miles from Dunblane. It went live three weeks ago and he says it already has more than 1,000 members, around 60 of whom are from the US.
schwit1 writes: Some distant objects in our solar system bear the gravitational imprint of a small stars close flyby 70,000 years ago, when modern humans were already walking the Earth, a new study suggests.
In 2015, a team of researchers announced that a red dwarf called Scholzs star apparently grazed the solar system 70,000 years ago, coming closer than 1 light-year to the sun. For perspective, the suns nearest stellar neighbor these days, Proxima Centauri, lies about 4.2 light-years away. The astronomers came to this conclusion by measuring the motion and velocity of Scholzs star — which zooms through space with a smaller companion, a brown dwarf or "failed star" — and extrapolating backward in time. Link to Original Source