solution to what type of a planet would have and average temperature of 40 degrees, a year on the planet lasts 423 earth days
Most of the frozen ice in a comet's ______ vaporizes after the comet's many trips around the sun. The Sun produces energy by fusing hydrogen atoms, into _____ atoms in its core. Planets...
I'm confused on what a black hole is and how they work.
Can someone please provide me a link for free astronomy textbooks online for high school students that has lots of practice problems? Unfortunately my school doesn't have them.
Studying the Hubble's Galactic Classification Scheme
i dont really get what they are, its not making sense that one exists
its coming up i think