earth

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How to Destroy the Entire Universe

Since the dawn of time man has yearned to destroy the sun. – C. M. Burns There’s no need to stop at the Sun, though. Since yesterday was Earth day, I thought it was only appropriate to spend today telling you how not only to destroy the Earth, but to effectively destroy the entire Universe.…

Happy Earth Day in Pictures!

As you may have noticed from yesterday’s unusual post, today is Earth Day! I thought I’d share with you some of my favorite pictures from space of it, including the famous photograph from Apollo 8 known as Earthrise: This combination shot made from NASA’s Terra satellite and NOAA’s Geostationary Operational Environmental Satellite: The known satellites…

Sometimes we need to look Down!

What makes earthquakes? Although there are many causes, including volcanoes, the most common thing that causes them are tectonic motions, which also cause tsunamis. But as valuable as it is to understand other planets in our solar system and in other star systems, sometimes it’s important to understand what’s going on inside our own planet.…

Why Explore Space/the Universe?

Fraser Cain over at Universe Today sent out a question to the Astronomy/Astrophysics/Space communication community today. And he asks: Why should we spend our time/money/resources on exploring space when there are so many problems here on Earth? This is something that, for better or worse, I had a knee-jerk reaction to. Here’s what I wrote…

How did Life on Earth Originate?

I was thinking about the timeline that brought us here, today, from the origin of the Universe up through the present day. I realized that the most uncertain thing that we know of, the step that we have the least information about, is the origin of life on Earth. All hypotheses about how life on…

Total Eclipse of the Heart Moon!

As Bonnie Tyler sang, and later The Dan Band (with more cursing), Once upon a time there was light in my life But now there’s only love in the dark Nothing I can say A total eclipse of the heart Well, it isn’t the heart, but this Wednesday night, beginning at 10 PM Eastern Standard…

That Bloody Moon!

The closest you’re going to get from me on Valentine’s Day is something red, dear readers. As the Moon is now a waxing gibbous and will be for the next week, it will brighten the sky for the majority of the night. But before sunrise, it will dip below the horizon and set. The funny…

What if I were made of Dark Matter?

I’ve been talking about dark matter a lot, and yet there’s still so much to explain about it. For example, dark matter and normal matter (protons, neutrons, and electrons) have a few things in common: They both have mass. They both feel the effects of gravity. They both cause their own gravity. But that’s where…

How to Build a Home in Space

Ever get sick of your life here on Earth? What about really getting away from it all; what if you wanted to live in space, orbiting the Earth, away from everyone. (At least for awhile, like a summer home.) What would you need to do it, and what would it consist of? I propose an…