Stars & Galaxies
Look up at the night sky! Every star is a sun, and every smudge of light could be an entire galaxy holding billions of stars.
Star Life Cycle
Stars are born in nebulae, live for billions of years, and eventually die as white dwarfs or supernovas!
Galaxies
A galaxy is a massive city of stars, gas, and dark matter bound together by gravity.
Black Holes
Regions of space where gravity is so strong that nothing, not even light, can escape!
Deep Space Objects
The Sun
Our local star, a massive ball of plasma that gives us light and heat. It makes up 99.8% of the mass in the Solar System!
Sirius
The brightest star in the night sky! It is actually two stars, Sirius A and a tiny white dwarf called Sirius B.
Betelgeuse
A massive red star in the Orion constellation. It is so big that if it replaced the Sun, it would swallow Mars and Jupiter!
Andromeda Galaxy
Our closest major galactic neighbor. It contains over one trillion stars and is slowly pulling towards the Milky Way.