Definition of red giant in English:
A very large star of high luminosity and low surface temperature. Red giants are thought to be in a late stage of evolution when no hydrogen remains in the core to fuel nuclear fusion.
- When its fuel runs out, an old star expands into a red giant and then collapses to become a white dwarf.
- Multiple collisions involving red giants and other stars might yield the random orbits her team has observed.
- It is believed that eventually the sun will expand into a red giant, swallowing all of the inner planets, and destroying all life on earth.
Definition of red giant in:
- US English dictionary
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Australia
Most popular in India
Most popular in Pakistan