Guide to Space
How Could You Capture an Asteroid?
We can't just go into space with a big butterfly net or catcher's mitt, so how in the world could…
Could the Death Star Destroy a Planet?
In the movie Star Wars, the Darth Vader's Death Star destroyed a planet. Could this really happen? You've watched Star…
How Do We Know Dark Energy Exists?
We have no idea what it dark energy is, so how are we pretty sure it exists? I've talked about…
How Do We Know Dark Matter Exists?
Dark matter can't be seen or detected by any of our instruments, so how do we know it really exists?…
How Long Does It Take to Get to Pluto?
It's a long way out to the dwarf planet Pluto. So, just how fast could we get there? Pluto, the…
How Far Back Are We Looking in Time?
When we look out into space, we're also looking back into time. Just how far back can we see? The…
10 Interesting Facts About Volcanoes
Want some volcano facts? Here are 10 interesting facts about volcanoes. Some of these facts you'll know, and others may…
Why Don’t We Search for Different Life?
If we really want to find life on other worlds, why do we keep looking for life based on carbon…
Could the Milky Way Become a Quasar?
There's a supermassive black hole in the center of our Milky Way galaxy. Could this black hole become a Quasar?…
What is the Brightest Star in the Sky, Past and Future?
What is the brightest star in the sky today, and what was it in the past? What will be the…