Why spiral galaxies seem to line up from our perspective? What’s the origin story about Saturn’s ring? Also the discovery of Hipparchus’ star charts in early Christian parchments and this month skyguide. More with @AwesomeAstroPod

Why spiral galaxies seem to line up from our perspective? What’s the origin story about Saturn’s ring? Also the discovery of Hipparchus’ star charts in early Christian parchments and this month skyguide. More with @AwesomeAstroPod
This is a famous tale from Bali about the eclipse of the moon. This tale is strongly influenced by Indian (Hindu) Culture. There are many versions of this tale with some slight differences. Javanese Culture also has very similar tale like this.
Dan McGlaun takes us on a tour of the capabilities of his eclipse simulator software on his webpage.
Why is it so hard to predict solar eclipses? How did Newton and Halley team up to solve it? What have we learned from solar eclipses since then?