按月归档： 4 月 2019

2019 April 1 Astronaut Kicks Lunar Field Goal Image Credit: NASA, Apollo 15 Team Explanation: Score three points for NASA. With time running out late in Apollo 15’s mission to the Moon in 1971, Astronaut David Scott prepared to split the uprights and bring about yet another dramatic end-of-the-mission victory for NASA. Scott used a special lunar footba...

2019 March 31 Markarian’s Chain of Galaxies Image Credit & Copyright: Sergio Kaminsky Explanation: Across the heart of the Virgo Cluster of Galaxies lies a striking string of galaxies known as Markarian’s Chain. The chain, pictured here, is highlighted on the right with two large but featureless lenticular galaxies, M84 and M86. Prominent to ...