Astronomy @ BellaOnline http://www.bellaonline.com/Site/astronomy Interested in learning about the wonders beyond the Earth's atmosphere? The astronomy site aims to furnish you with the information you need, whether it be the mysterious properties of black holes or the origins of the universe itself. en-us Copyright 2017 BellaOnline.com All Rights Reserved. Tue, 27 Jun 2017 20:57:02 EST 240 http://www.bellaonline.com/images/logo.jpg Astronomy @ BellaOnline http://astronomy.bellaonline.com Beautiful Planet – film review http://www.bellaonline.com/articles/art304331.asp The Milky Way contains billions of stars and planets, but Earth is to us the most beautiful. The thin skin of our atmosphere protects us from many space hazards, but can't protect life on Earth from human-made hazards. Tony Meyers's new film A Beautiful Planet 3D says only we can do that. Tue, 27 Jun 2017 11:50:33 EST Cecilia Payne-Gaposchkin http://www.bellaonline.com/articles/art304281.asp How does the composition of a star affect the temperature? In 1925 a young woman solved this puzzle in her doctoral thesis. Her analysis was a great breakthroughs in astrophysics. Otto Struve described it as “the most brilliant Ph.D. thesis ever written in astronomy.” Wed, 14 Jun 2017 20:00:00 EST Ptolemy and the Butterfly – M7 and M6 http://www.bellaonline.com/articles/art304246.asp The objects in the Messier catalog that are the farthest south are two star clusters. M6 is also called the Butterfly Cluster and M7 is also known Ptolemy's Cluster. They're splendid objects seen in their glory in the southern skies, but if you live in the far north you can't see them at all. Sat, 3 Jun 2017 18:00:59 EST