Guide to Space
How Fast is Gravity?
How long would it take for the gravitational well created by the Sun to disappear, and the Earth and the…
Is There Life on Pluto?
First discovered in 1930, Pluto was considered to be the ninth planet in our Solar System for many decades. And…
What is the Haleakala Volcano?
Hawaii is famous for its lovely mountains, tropical climate, and majestic oceanfront vistas. Another thing it is famous for is…
What is the Pacific “Ring of Fire”?
What if someone were to tell you that there's a region in the world where roughly 90% of the world's…
Why Don’t We Send Probes “Up” In The Solar System?
Wouldn't it be easier to see what’s outside the solar system if we just send out probes straight up? Dammit,…
Why Can’t We See the Center of the Milky Way?
For millennia, human beings have stared up at the night sky and stood in awe of the Milky Way. Today,…
What Causes Lightning?
Thunder and lightning. When it comes to the forces of nature, few other things have inspired as much fear, reverence,…
Newest Planet: Is it Pluto, Eris or Extrasolar?
With astronomers discovering new planets and other celestial objects all the time, you may be wondering what the newest planet…
What is the Roden Crater?
Imagine a volcano powerful enough to leave a massive crater in the Earth that could be seen from space. Now…
Who Was Nicolaus Copernicus?
Polish astronomer Nicolaus Copernicus revolutionized astronomy by proposing that the Earth and other planets revolved around the Sun