Fifteen detailed pictures and informative captions delve deep into the exploration of stars—their life cycle and importance in the universe. 

Follow along as Stella Stardust interviews the sun. A fun and informative interview provides scholars with information about the sun. 

Scholars take a journey through space with 16 eye-catching images. Along the way, learners read captions starting with the moon, then move onto asteroids, Mars, and Jupiter.

Rocks and minerals are great on their own, but they also turn into some pretty amazing stuff! An online lesson explains the different types of materials we get from rocks and minerals, including glass, plastic, and coins. An embedded...

Get to know our little part of the vast universe. Learners read about the common and not-so-common facts about each of the planets in the solar system. The interactive lesson includes a large amount of information as well as a quiz to...

A website all about planetary mysteries—it's a one-stop-shop for all things, stars, planets, and space travel. Scholars read an astronomy overview to discover the page's big ideas, then choose from the plethora of resources, including...

A website looks at how we know so much about Mars—telescopes, robots, and spacecraft—and the search for martian life. Following the informational text are three questions that quiz pupils about possible life on Mars. 

Humans have only inhabited Earth for a short part of its existence. An online resource explains how scientists use clues from rocks and fossils to piece together information about Earth prior to humans. The online instruction includes...

This site has a description of the many probes sent to the outer planets, including pictures and vocabulary words linked to a glossary of terms. Other links on interesting facts and more detailed information are also included.

This survey of the planets includes all the basics, size, mass, atmosphere, length of day, and the like. It features interactive activities and learning exercises and compares all of the planets in colorful tables.

Our solar system is filled with a wide assortment of celestial bodies - the Sun itself, our eight planets, dwarf planets, and asteroids - and on Earth, life itself! The inner solar system is occasionally visited by comets that loop in...

Official NASA information page about the planet Mercury.

How do you recognize life on another planet? What tests do scientists use to determine if something is a life form when they are many light years away from being able to observe it directly? Try your hand at interactives to create a...

Kids learn about astronomy, the study of outer space including the stars, planets, comets, black holes, and the Solar System. History and astronomers in this astronomy for teachers and kids section.

Empty space in outer space is not truly empty. Celestial objects fill the space not occupied by planets, stars, and such. This resource identifies these objects and further explains their existence.

The official site for the "leading organization of the Russian Academy of Sciences in the field of investigations of Outer Space, Solar System planets and other objects of the Universe"