Stars In Space

And there are billions of galaxies in the universe.

Stars in space. 111 112 betelgeuse however has a much lower densitythan the sun 113 kinematics. So far we have. Stars are huge celestial bodies made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores.

Get the latest updates on nasa missions watch nasa tv live and learn about our quest to reveal the unknown and benefit all humankind. There are 9 096 stars visible to the naked eye in the entire sky. Stars range in size from neutron stars which vary anywhere from 20 to 40 km 25 mi in diameter to supergiantslike betelgeusein the orion constellation which has a diameter about 1 000 times that of our sun.

The closest star to earth is the sun. Stars are giant luminous spheres of plasma. Multiplying that by the milky way s estimated 100 billion stars results in a large number indeed.

Nasa gov brings you the latest images videos and news from america s space agency. Stars are the main components of galaxies and were among the first objects to form in the early universe.