A solar eclipse is the most amazing astronomical sight you’ll ever see.
Not only is it the only time you’ll ever be able to clearly see the “new moon” phase of the moon, it’s the only time you’ll ever see the sun’s corona. And it’s the only time that, under very specific circumstances, you can actually look directly at the sun for a few moments.
But before you get too excited about that, let me tell you what’s happening in the sky—and give you a few important safety warnings!
(This is just the first of a few posts that will talk about solar eclipses; they’re all worthy of a read. Even if you don’t read all of mine, make absolutely certain you’re caught up on safety warnings before you view a solar eclipse!) Continue reading
Have you ever heard of the blood moon?
It’s named for its red appearance. Sometimes it’s even mistaken for Mars, as in the case of the “Mars hoax” back in 2002. It was claimed then that Mars would look as large as the full moon on August 27.
In truth, Mars will never appear as large as the full moon to the naked eye (a fancy way of saying that you’re not looking through a telescope or binoculars). What really happened was that the moon passed through the Earth’s shadow.
Wait a second. The Earth has a shadow? And it’s red? Continue reading
The lunar phases…who really understands ’em?
We see them all the time. When we look up at the moon in the sky, we’re bound to notice that it looks just a little bit different from the last time we saw it. It changes from a slivery crescent to a full circle, and then wanes back to the crescent phase again.
The moon has behaved the same way in the sky for billions of years, ever since a Mars-sized space rock collided with the newborn Earth and the debris collected into our own personal satellite.
For that long, the moon has watched over us and captivated scientists and amateur skywatchers alike.
But what are the secrets behind its monthly changes? Continue reading