Meet tourmaline. It’s one of two birthstones for October. The other October birthstone is opal. More info inside this post. And happy birthday October babies!
Earth’s shadow extends about 1,400,000 kilometers (870,000 miles) into space, in the direction opposite the sun. There are several good times to think about and be aware of Earth’s shadow. Follow the links inside to learn more…
Are you planning on watching the September 27-28 eclipse? Here are some tips.
A solar eclipse happens at the new moon – when the moon passes between the sun and Earth. A lunar eclipse happens when the Earth, sun and moon align in space, with Earth in the middle. Why aren’t there eclipses at every full and new moon?
During a lunar eclipse, you’ll see the Earth’s shadow creeping across the moon’s face. The shadow will appear dark, like a bite taken out of the moon’s face, until the shadow completely covers the moon. Then, during the breathtaking moments of totality, the shadow on the moon’s face often often suddenly changes. Instead of dark, it appears red. Why?
The fourth and final lunar eclipse in an ongoing tetrad – four lunar eclipses in a row – happens on September 27-28, 2015. Some will call it a Blood Moon.
Many believe Earth’s changing distance from the sun causes the change in the seasons. But that is not the case.
Have you ever noticed mushrooms growing in a big circle? It’s known as a ‘fairy ring.’ Ok, you probably didn’t see it looking exactly like this. Click in for some photos of the way a fairy ring is more likely to look, plus an explanation of why these mushroom circles happen.
That’s more than previous estimates. But the number of trees has dropped by 46% since the start of human civilization, says the study.
It’s sometimes said that, on a worldwide scale, solar eclipses outnumber lunar eclipses by about a three to two margin. True?