Universe

Question 1

Star

Answer 1

Are huge spheres of very hot gas that emit light and other radiation.

Question 2

Light-year

Answer 2

Is the distance that light travels in one year or 9.5x1015m.

Question 3

Red giant

Answer 3

The star is red because its surface is cooler, but the core is hot enough to convert helium into carbon and oxygen.

Question 4

White dwarf

Answer 4

No longer fuse elements ,so they slowly cool.star with a mass of 1.4solar masses or smaller will have a similar life cycle. Most stars in our galaxy will end as white dwarfs.

Question 5

Supernova

Answer 5

Type 1 supernova occurs when a white dwarf in a binary system (a system composed of two stars) collects enough mass from its companion to exceed 1.4solar masses.

Question 6

Black hole

Answer 6

If the leftover core has a mass that is greater than three solar masses, it will collapse to form an even stranger object a wormhole, which consists of matter so massive and compressed that nothing, not even light, can escape its gravity.