giant

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“Now, this is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning.” -Winston Churchill To kick off every week for nearly a year now, we’ve begun it with Messier Monday, where we take an in-depth look at the 110 deep-sky objects that make up…

The lives and deaths of Sun-like stars

“Man alone is born crying, lives complaining, and dies disappointed.” -Samuel Johnson But the stars, as opposed to humans, are born shining, with hundreds (or more) of brothers and sisters, shine ever more brightly over their lifetimes, and die in spectacular fashion. As far as we can tell, here’s the past, present and future story…

A Super-Sized Sister Solar System!

“It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put up my thumb and shut one eye, and my thumb blotted out the planet Earth. I didn’t feel like a giant. I felt very, very small.” -Neil Armstrong Here on our little wet rock in our Solar System, we…

How Come We Have A Moon?

But I didn’t want one! Stop your whining, Earthlings. We have a serious question to answer, courtesy of Tamara: What’s the moon like below its surface, moving into the interior? And what’s the current thought on its formation? Well, we do know a lot about the Moon’s insides the same way we know about the…

Do all Stars Eventually Explode?

What’s going to happen to all the stars in the Universe as they get older? Well, just as nothing can live forever, stars can’t live forever also. Why? Because they run on fuel: burning hydrogen into helium, for example. When they run out of fuel, something’s gotta give. Barbara Ryden reminds us of an excellent…