The Sun Saga

'Red giants' are evolved giant stars of 1000 times the volume of the Sun and with a surface temperature of 2,500 to 3,500 °C. In about five billion years, the sun will become a red giant and the planets that are the closest to the Sun (including Earth) will be burnt away.A recent s... [ read more >> ]

An artist's illustration shows the relative sizes of various stars compared to our sun

Image comment: An artist's illustration shows the relative sizes of various stars compared to our sun
Image credits: NASA, ESA and A. Feild (STScI)

An artist's illustration shows the relative sizes of various stars compared to our sun