Ask Your Science Teacher: 'Great American Eclipse' on its way August 21


You'll have to hit the road to see the full splendor of the upcoming solar eclipse, but there still will be quite the show if you stay put in Florida. "If you don't do that soon, it's going to be too late".

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Here's everything you need to know about the sun's (temporary) disappearance on August 21. "We'll come around one more time and from the station side we'll see about an 85 percent eclipse of the sun looking up (at 4:17 p.m.)". They're typically made of cardboard and only cost a dollar or two each.

They say mom was right: You can damage your eyes staring at the sun, even the slimmest sliver of it.

It may be tempting to take the glasses off, to just view the eclipse using the clouds as a filter. Some of those look a bit more fashionable.

This is especially true here in Canada, where it is unsafe to watch any part of the eclipse without having your eclipse glasses on (or #14 welders glass, or by using a pinhole projector).

Laura Shelton, a first-grade teacher at the Discovery School in Shelbyville, Ky., learned that lesson the hard way. NASA has a handy list of reputable vendors here that you can double-check.

Spotting the fakes is rather easy. But Blair said people should make sure the glasses are ISO (International Organization for Standardization) certified. You don't even need to be in the path of totality to participate.

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Solar eclipses happen when the moon passes between the sun and the Earth, covering up part of the sun.

The crown is the sun's atmosphere and stretches millions of miles into space.

As the last of the sun vanishes, the temperature drops, and from the west, a wall of darkness, the moon's shadow, approaches. "It is something that is 500 years in the making, so you can't say you didn't have time to plan for it", said news director Denise Eck.

We all know the eclipse can be bad for our eyes. "It doesn't take very long before you're exposing your eyes to serious risk". "The sun can be bright enough to cause retinal damage".

The Land of Enchantment will only experience a partial eclipse, but the 60 mile wide path of "totality" from OR to SC will be ground zero with numerous telescopes. The rest of the continent will also see a partial eclipse.

Just so we're clear.

One source told Business Insider that she had nearly purchased a five-pack of eclipse glasses on Amazon, before double checking the date - and realizing that they wouldn't arrive until September. Apparently people will try all sorts of things to avoid that.