Understanding how the universe transitioned from darkness to the emergence of stars marks a critical shift known as Cosmic Dawn. Yet, astronomers have struggled to unravel details about the first ...

Pt. I, Stars, planets, and life : -- The size and scale of the universe -- From the day and night sky to planetary orbits -- Newton's Laws -- How stars radiate energy (I) -- How stars radiate energy ...

New observations from the James Webb Space Telescope hint that the universe’s first stars might not have been ordinary fusion-powered suns, but enormous “supermassive dark stars” powered by dark ...

Massive stars do not live long. There are several candidates for the biggest star in the universe. One of them, VY Canis Majoris, is over 1,500 times the width of the sun. If it were placed in our ...

A discovery of binary stars could be the first step in building a more complete picture of how our galaxy formed, according to astronomers from The Australian National University (ANU). The discovery ...