How old is a star?
How old is a star? A star like our sun is calculated to have a total stable life-span of around 10 billion years; the sun is now a bit less than half that age (this age is very accurately determined from radioactive elements in meteorites), so we have another five billion years or so before we have to start looking for a new home.
What’s bigger than the universe?
No, the universe contains all solar systems, and galaxies. Our Sun is just one star among the hundreds of billions of stars in our Milky Way Galaxy, and the universe is made up of all the galaxies – billions of them.
What is the youngest thing in the universe?
GN-z11 is the youngest and most distant galaxy scientists have observed. This video zooms to its location, some 32 billion light-years away.
What is older than the universe?
Far from being 13.8 billion years old, as estimated by the European Planck space telescope’s detailed measurements of cosmic radiation in 2013, the universe may be as young as 11.4 billion years. If that is, indeed, the case, then Methuselah is one again older than the universe.
