Learn about the composition of the universe in terms of element abundance. Find out about the most abundant element and those that are rare.
Astronomy
Learn about nucleosynthesis including Big Bang and stellar nucleosynthesis and other processes that make elements.
Nucleosynthesis – How Elements Are Made Recently updated !
Learn about a selenelion eclipse, including how it works, how often it occurs, and how to see this type of lunar eclipse yourself.
Selenelion Eclipse
Learn whether the Sun fits between the Earth and the Moon and get a sense of exactly how big the Sun is in comparison to a planet.
Can the Sun Fit Between the Earth and the Moon?
Learn what a lunar eclipse it and why it's called a blood moon. Find out why lunar eclipses occur and when the next one is.
What Is a Lunar Eclipse?
Circle the names of the moons of Saturn in this fun and educational astronomy word search puzzle. The puzzle includes 21 names.
Moons of Saturn Word Search Puzzle
Learn about the 8 phases of the moon. See how they work and learn which phase occurs during a lunar eclipse.
Phases of the Moon – Lunar Phases
Learn what color the Sun is and why it appears different colors from Space, the Earth, and in photographs.
What Color Is the Sun? Hint: Not Yellow
Learn about the colors of the stars from hottest to coldest and see why there aren't any green or purple stars.