Guide to Space
Neptune’s Moon Triton
The planets of the outer Solar System are known for being strange, as are their many moons. This is especially…
What About a Mission to Europa?
Europa’s water exists in a layer around the planet, encased in a layer of ice. Could there be life down…
The Planet Venus
The planet Venus, which is hottest and most hellish world in our Solar System, has a long history of being…
What if a Black Hole Met an Antimatter Black Hole?
Would shooting a black hole into an antimatter black hole destroy them both? (more…)
What’s This Ridge on Iapetus?
The strangest feature on Iapetus is the equatorial ridge. What could possibly create a feature like this? To paraphrase the…
The (Dwarf) Planet Pluto
Once known as the 9th planet of the Solar System, Pluto is now classified as a "dwarf planet", a Trans-Neptunian…
How Could We Destroy the Moon?
What would it take to destroy our moon, and eliminate the enemy of stellar astronomy for all time? In the…
New Horizons Mission to Pluto
Humans have been sending spacecraft to other planets, as well as asteroid and comets, for decades. But rarely have any…
Charon: Pluto’s Largest Moon
Charon is the largest moon of the dwarf planet Pluto. In fact, it's so large the two objects act like…
Pluto’s Moon Hydra
In 1930, Pluto was observed for the first time. For many decades, astronomers thought that the "ninth planet of the…