The fuzzy, gaseous component of a comet's head.
A cloud of gas or dust in space.
A small body made of rocky and metallic pieces held together by frozen gases.
Small, irregularly shaped body formed by colliding matter.
A small rocky body, which can range in size
A small, solid particle that travels through space.
The luminous phenomenon observed when material enters the Earth's atmosphere and burns up.
Any portion that reaches the Earth's Surface.
The Jupiter-like planets, also known as gas giants. (farthest away)
any of the Earth-like planets. (closest to the sun)
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.
NEW! Voice Recording
Click the mic to start.