Cosmic Horizons

Our Solar System

4.6 billion years ago our star formed and here we are now

filler img for hero area

The 8 Planets

Inner planets:

Picture of Mercury on black backgroun
Mercury(36 million miles to sun):

Mecury is so close to the sun that it can reach over 800F. However, it also has no atmosphere meaning at night it drops to -290F.

Picture of Venus on black backgroun
Venus(67 million miles to sun):

Venus is similar in size to the Earth and rotoates in the oppoiste direction. It has a thick atmosphere that traps in the heat making it the hostest planet.

Picture of Earth on black backgroun
Earth(93 million miles to sun):

Hey, thats us! Earth is the only planet with life that we know of. It is the only planet with a prefect atmosphere and liquid water that can support us.

Picture of Mars on black backgroun
Mars(141 million miles to sun)

Mars is famous for its red rusted surface, icy polar caps, and huge mountains. It also has two moons phobos and deimos, but they are much smaller than Earth's.

Outer planets:

Picture of Jupiter on black backgroun
Jupiter(483 million miles to sun):

Jupiter is the biggest planet in our solar system yet has the shortest days, only 9.9 hours. This gives it super big storms, its biggest is the Great Red Spot.

Picture of Saturn on black backgroun
Saturn(889 million miles to sun):

Saturn has the biggest and most complex set of rings in the entire solar system. They are made up of billions of tiny rocks, ice, comets, and dust.

Picture of Uranus on black backgroun
Uranus(1.8 billion miles to sun):

Uranus has an extreme tilt of 98 degrees and therefore spins sidesways. This was the first planet to be discovred using a telescrope back in 1781.

Picture of Neptune on black backgroun
Neptune(2.8 billion miles to sun)

Neptune is the coldest, furthest, and darkest planet from the sun. It is so far that even at noon time the sun's light is more like twilight here on Earth.

"Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there--on a mote of dust suspended in a sunbeam..."

-Carl Sagan(1934 to 1996)

An important message!

Want to learn more about our universe? Click the big button