Science Does the time it takes different methods to create all the elements coincide with the universe’s accepted age?
Galaxies Scientists identified galaxies at 600 million light-years after the Big Bang in the Hubble Ultra Deep Field. Shouldn’t this light have passed us long ago? Why is it just getting to us now?
Stars Is it possible to see a star’s disk? I’ve heard that Betelgeuse has been imaged, but what about the Alpha Centauri system or other stars?
Science Ask Astro web extra: Does a star stay at the same spot in the sky everyday? If not, is it considered a star, or some other unidentified object?