'In about 5 billion years, the Sun will expand & become a red this; outer layers may reach 2 or even (gulp!) 3 planets'
a giant
THE SUN BELT: In about 5 billion years, the Sun will expand & become a red this; outer layers may reach 2 or even 3 planets
In about 5 billion years, the Sun will expand & become a red this; outer layers may reach 2 or even 3 planets
In about 5 billion years, the Sun will expand & become a red this; outer layers may reach 2 or even 3 planets
THE SUN BELT
a giant
THE SUN BELT