Beyond our atmosphere flies a lot of debris. Some fragments can be larger than mountains, but most is space-dust.
The startling experience of five British monks from the twelfth century who saw an enormous explosion occur on the moon. The moon still be vibrating today.
How many times have you actually seen a star explode or a asteroid at night? Have ever learned about how the records of these events are taken? Then tune in.
What is the difference between an asteroid and a comet?
Geogenesis is the scientific term for the beginning of something very important, life. How did it all begin?
The first thing you need to survive an asteroid collision is knowledge of when it's coming.
On last count, there were nine planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. Soon, however, we might need to add a tenth planet to the solar lineup. Learn more on this Moment of Science.
Did you know that there was a time before fire ever existed? Learn more on this Moment of Science.
Although the earth has been hit by asteroids in the past, and will surely be hit again someday, much of the gloom-and-doom you hear about in the media is based on very little data.