Day: September 9, 2018

https://www.youtube.com/watch?v=wfi4s2qgY-Y nemesis maturity Published on Sep 9, 2018 On Sept. 10th, Comet 21P/Giacobini-Zinner will make its closest approach to Earth in 72 years–only 58 million km from our planet. This small but active comet is easy to see in small telescopes and binoculars as it shines like a 7th magnitude star. The close approach coincides with …