It stands to reason that stars formed from the same cloud of material will have the same metallicity. That fact…
Binary star systems are everywhere. They make up a huge percentage of all known solar systems: from what we can…
About 10,000 light years away, in the constellation Centaurus, is a planetary nebula called NGC 5307. A planetary nebula is…
The Sun has always been the center of the Universe for humanity. However, the nature, composition and lifespan of the…
[/caption] It might be hard to believe, but massive stars are larger in their infant stage than they are when…