RT @Spyder_Webb: #OnThisDay 5 June 1989 @NSFVoyager2 began regular observations of #Neptune: voyager.jpl.nasa.gov/news/25_years_… #astronomy #space http://t.co/A44rTmCErA
RT @Spyder_Webb: #OnThisDay 5 June 1989 @NSFVoyager2 began regular observations of #Neptune: voyager.jpl.nasa.gov/news/25_years_… #astronomy #space http://t.co/A44rTmCErA