Why don’t you live on Mars?

Oh I don’t know. It’s a lot further than I usually go to visit exotic places. There’s no breathable air. There’s no suitable soil to grow anything. I’m an outdoor kind of person, but you just can’t go out on Mars without a spacesuit. There’s dangerous solar radiation bombarding the place. NASA has established that... Continue Reading →

Why would the footprints of astronauts not be wiped out from the surface of the moon?

Well, there’s no air, and therefore no wind on the moon. There’s really not a lot that could wipe out the footprints. They’ll be there a long time. What will happen, eventually, however, is meteorites striking the moon. Really big ones might make the ground shake where the footprints are and cause the fine dust... Continue Reading →

NASA says Terraforming Mars Not Possible

This article was originally posted on Business Insider. A NASA-sponsored study found there's not enough carbon dioxide on Mars to deliberately modify the planet's atmosphere (known as terraforming). This means terraforming isn't a viable option to make the planet habitable for humans. Terraforming the planet was the entire basis for Elon Musk's plans to colonize... Continue Reading →

How do satellites stay in space?

Let’s revisit Sir Isaac Newton’s cannon. In the above mentioned article we had placed a level on the cannon and shot the cannonball at 1440 feet per second parallel to the ground until it fell and bounced and rolled and came to a stop. We didn’t want to shoot it up in the air in a... Continue Reading →

GPS Block III on Hold

Since GPS achieved Fully Operational Capability on July 17, 1995, GPS has become an essential navigational tool for civilians and military alike. Keeping the system up-to-date has proved to be a problem. Originally the system was supposed to be up and running in February of 2016 but has been delayed at least until 2023. The latest... Continue Reading →

Why does the moon revolve around the earth?

It just moves forward. The moon isn’t stationary. It has inertia and no atmosphere in space to slow it down. It just goes. As it moves forward, the gravity of Earth tugs on it and it falls, but because it’s moving forward it misses Earth as it falls and goes around, again and again. That’s... Continue Reading →

Why doesn’t anyone else besides me believe in time traveling?

I don’t know the answer to your question. However, consider this. We are not standing still. In time the Earth rotates around it’s axis, the Earth also rotates around the sun, the sun rotates around the galactic center and the galaxy is merging with Andromeda. We are therefore moving at hundreds of thousands of miles... Continue Reading →

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