All the naturally occurring elements in the Universe are produced by nuclear fusion reactions in stars. For example, beryllium and carbon nuclei can be produced from helium nuclei: During the ...

Calculations by astronomers and physicists suggest that the universe formed around 13.8 billion years ago. Since then, an unfathomable number of stars and planets have come into existence.

So, a near-perfect circle in a messy universe ... objects from outside our Milky Way galaxy – for example, “radio ring” galaxies. When we use visible light to look at the stars in this ...

Hubble also measures the atmospheres of planets outside our own solar system ... their mission as a search for "the old" (the universe's earliest stars and galaxies), "the cold" (brown dwarfs ...

what they are doing and how they enriched the universe at that time." Individual stars outside of the Milky Way have been observed before but usually only one or two at a time. Dr Lagattuta said ...

A study now provides evidence that some stars may have been born from some fluffy versions of these clouds in the early years of our universe, they report in The Astrophysical Journal. “Even today our ...

Because the universe's oldest stars are only 10 billion to 20 billion years old there are no known black dwarfs—yet. Estimating how long white dwarfs have been cooling can help astronomers learn ...