Guide to Space
How Do Black Holes Evaporate?
Nothing lasts forever, not even black holes. According to Stephen Hawking, black holes will evaporate over vast periods of time.…
How Quickly Does a Supernova Happen?
When a massive star reaches the end of its life, it can explode as a supernova. How quickly does this…
Beyond “Fermi’s Paradox” II: Questioning the Hart-Tipler Conjecture
Welcome back to our Fermi Paradox series, where we take a look at possible resolutions to Enrico Fermi's famous question,…
Beyond “Fermi’s Paradox” I: A Lunchtime Conversation- Enrico Fermi and Extraterrestrial Intelligence
Welcome back to our Fermi Paradox series, where we take a look at possible resolutions to Enrico Fermi's famous question,…
How Can Black Holes Shine?
We hear that black holes absorb all the light that falls into them. And yet, we hear of black holes…
A Red Moon – NOT a Sign of the Apocalypse!
On most evenings, the Moon will appear as a bright yellow or white color in the night sky. But on…
How Dense is the Asteroid Belt?
We've seen way too many science fiction episodes that show asteroid belts as dense fields of tumbling boulders. How dense…
Will the Universe Run Out Of Energy?
It seems like the good times will go on forever, so feel free to keep on wasting energy. But entropy…
Predicting Eclipses: How Does the Saros Cycle Work?
Boy, how about that total solar eclipse last Friday? And there’s more in store, as most of North America will…
Is the Universe Finite or Infinite?
Two possiblities exist: either the Universe is finite and has a size, or it's infinite and goes on forever. Both…