Related topics: earth

Lost in space? Just use relativity

One of the hardest things for many people to conceptualize when talking about how fast something is going is that they must ask, "Compared to what?" All motion only makes sense from a frame of reference, and many spacecraft ...

Video: Permafrost thaw: A silent menace

Ice is without doubt one of the first casualties of climate change, but the effects of our warming world are not only limited to ice melting on Earth's surface. Ground that has been frozen for thousands of years, called permafrost, ...

Does Betelgeuse even rotate? Maybe not

Betelgeuse is the well known red giant star in the corner of Orion the hunter. The name translated in some languages means "armpit of the giant," which, I think of all the star names, is simply the best! Betelgeuse has been ...

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