Guide to Space
What Happens When Galaxies Collide?
In about 4 billion years, the Milky Way and Andromeda galaxies will collide. Known as a galactic merger, this process…
How Many Dogs Have Been to Space?
During the early Space Race, both the American and Soviet space programs conducted tests flights using animals. In the Soviet's…
What Does Earth Look like from Mars?
Earth has been photographed multiple times from Mars, both from orbit (by orbital missions) and from the surface (rover missions).
Where Can I Take Off My Space Helmet?
When it comes to space helmets, there's one rule: you keep your helmet on. But there might be a couple…
What is Carbon Dating?
Radiocarbon dating (aka. carbon dating) measures the half-life of carbon-14, which occurs naturally in our atmosphere, to determine the age…
What is Absolute Zero?
Absolute Zero is the coldest possible temperature, the point at which you can no longer extract any energy from a…
What is a Total Eclipse?
A total eclipses is an amazing sight, occurring whenever the Moon passes between the Sun and the Earth (or the…
How Can You see the Northern Lights?
The northern lights are an amazing thing to behold, and can be seen regularly from locations spanning from Siberia and…
What is a Debris Flow?
Debris flows are fast-moving landslides made up of liquefied, unconsolidated, and saturated mass. They are one of the most dangerous…
How Can We Save The Sun?
Bad news, our Sun is living on borrowed time. It’s only got a few billion years left. But there might…