New! Sign up for our free email newsletter.
Reference Terms
from Wikipedia, the free encyclopedia

Red giant

A red giant is a large non-main sequence star of stellar classification K or M; so-named because of the reddish appearance of the cooler giant stars.

Note:   The above text is excerpted from the Wikipedia article "Red giant", which has been released under the GNU Free Documentation License.
Related Stories
 


Space & Time News

November 11, 2024

Astronomers have discovered a supermassive black hole at the center of a galaxy just 1.5 billion years after the Big Bang that is consuming matter at a phenomenal rate -- over 40 times the theoretical limit. While short lived, this black hole's ...
New research in our Milky Way has revealed a neutron star that rotates around its axis at an extremely high speed. It spins 716 times per second, making it one of the fastest-spinning objects ever ...
It would take far longer than the lifespan of our universe for a typing monkey to randomly produce Shakespeare, a new study ...
Astronomers observed ancient quasars that appear to be surprisingly alone in the early universe. The findings challenge physicists' understanding of how such luminous objects could have formed so early on in the universe, without a significant ...

Latest Headlines

updated 12:56 pm ET