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Cool Facts
Enceladus Reflects 90% of the Sun’s Light
Enceladus, one of Saturn's smaller moons has an icy surface that reflects sunlight rather than absorbing it. Temperatures reach as low as -394 Fahrenheit ( -201 Celsius).
What Is Space Junk?
Space junk is any human-made object orbiting Earth that no longer serves a useful purpose. Scientists estimate there are about 500,000 pieces of space junk today, including fragments from rockets and satellites, and everyday items like…
Astronauts – Origin?
The word “astronaut” comes from the Greek words “astron nautes”, which means “star sailor.”
Our Milky Way Galaxy
Our galaxy will collide with the Andromeda Galaxy in about 5 billion years. Some astronomers refer to our two galaxies as a binary system of giant spirals.