Sep 25, 2025 · An asteroid is a small rocky object that orbits the Sun. Asteroids are smaller than a planet, but they are larger than the pebble-size objects we call meteoroids.

Sep 25, 2025 · Scientists can learn about asteroids by studying meteorites: tiny bits of asteroids that have flown through our atmosphere and landed on Earth’s surface. Several NASA space missions …

Sep 25, 2025 · And we also have to make sure we don’t run into any other orbiting objects — like planets or asteroids — along the way. Scientists who study Mars also need to keep a Martian …

Sep 25, 2025 · The answer may surprise you.Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward …

Sep 25, 2025 · The Sun contains almost ALL of the material in our solar system. 99% of it. All the planets, asteroids and comets add up to less than 1% of the total. The Sun is so far away that it …

Sep 25, 2025 · Ribbon Colors If you have three different colors of ribbon, you can make a very accurate comet. Comets have a nucleus, which is the main body of the comet. They have a coma, which is …

Sep 25, 2025 · The middle layer The mesosphere lies between the thermosphere and the stratosphere. “Meso” means middle, and this is the highest layer of the atmosphere in which the gases are all …

Sep 25, 2025 · Learn more about asteroids, meteors, meteoroids, meteorites, and comets!

Sep 25, 2025 · To weigh a planet, scientists need to know two things: how long it takes objects to orbit the planet and how far away those objects are from the planet. The time it takes an object to orbit a …

Sep 25, 2025 · Make asteroids you can eat! Create your own odd-shaped asteroids out of plain old mashed potatoes. Bake them in the oven to turn them (more or less) asteroid color. Then eat your …