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Is there a hole in the universe?
science.howstuffworks.com/dictionary/astronomy-terms/hole-in-universe.htm
A hole in the universe was recently discovered by scientists at the University of Minnesota in 2007. Read about the discovery of a hole in the universe.
How Elon Musk Works
science.howstuffworks.com/elon-musk.htm
Internet king turned rocketman? After making his fortune on the Web, Elon Musk entered the commercial space race. Will this businessman and his SpaceX company make space tourism affordable?
4 Ways to Experience Outer Space Right Here on Earth
science.howstuffworks.com/space-tourism-experiences.htm
Amazon CEO Jeff Bezos and his brother plan to blast into space next month. But even if you're not related to a billionaire, you can still experience the fun of space at a 'down-to-Earth' price.
What If the Earth Had Two Moons?
science.howstuffworks.com/science-vs-myth/what-if/what-if-earth-had-two-moons.htm
Tons of planets have more than one moon. Heck, Jupiter and Saturn have more than 50 each, and they seem to be doing just fine. So why is it that the idea of a second moon for Earth has scientists throwing up red flags?
How Space Tourism Works
science.howstuffworks.com/space-tourism.htm
The space tourism industry offers people a way to take the ultimate vacation. Learn about space tourism and find out how you can become a space tourist.
How Space Junk Works
science.howstuffworks.com/space-junk.htm
Space junk is the debris orbiting Earth, left behind by satellites and space shuttles. Find out how much space junk is up there and space junk dangers.
What conditions are required for life?
science.howstuffworks.com/environmental/earth/geophysics/conditions-required-life.htm
We argue that living well requires wine and cheese, but what does living at all require? You might be surprised to find out that there's no single definition.
Earth: A Primer on the Third Rock From the Sun
science.howstuffworks.com/earth.htm
Earth is an enormous and extremely complex planet. Learn about the inner workings of the planet Earth and find out what forces are constantly at work on Earth.
How Aerogels Work
science.howstuffworks.com/aerogel.htm
Aerogels are incredible materials that could have dozens of uses from insulation to oil spill cleanup. Learn about aerogels in this article.
The Time Two Russian Space Tortoises Beat Apollo to the Moon
science.howstuffworks.com/space-tortoises.htm
Yep, two small-bodied Russian tortoises made it to the moon and back before man did.