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Roughly thirty two million americans live along the route
That the moon shadow will take as it goes across the country millions more pouring and towns and cities in the path of tutality to get a first hand view of the total solar eclipse
And for more on the science behind it all and what scientists ally be able to learn from it seen as air space analals miles ubrian enjoying this now a miles great to have you with us
Let's just start with the basics for everyone
What happens during a total solar eclipse
对对对
Well jessica
We're taking advantage of a coincidence
That uh we don't know of any other planet and moon combination has which is the moon is four hundred times
Smaller than the sun and uh the sun is four hundred times
The distance away
And that councils each other out and so from where we sit on the surface of birth
They appear to be the same diameter
Now the moon is una tilted orbit
So this doesn't happen every month
Whatever there's a new moon
But on occasion relatively frequently we get this occurrence
Where the moon passes over for the sun
Eclipsing the sun and umany times this happens over the ocean
So we don't know about it in this case
What makes it extraordinary
嗯
Is this just going to rip across a huge population center
Which is to say north america from mexico s the the t in the united states exiiting newffdland probably thirty to forty million people just living under the so called pack of totality
Ah so it's going
Going be a big event
Yeah
It ssounds like it
And it's also a chance for scientists to learn more about our universe
Now is is going to launch rockets into the path of the eclipse
What makes this a unique research opportunity
What do you think they're hoping to learn
没有没有没有
Well
We wanted know about the sun's coroner uh looking at the sun with most instruments
There are some instruments which create artificial clilipses uh
But most instruments are unable to view the coroner which is like a million times fainter than the sun
Itself when the moon is eclipsing the sun
You see that outer edge
That crown the coroner understanding its raatties uh t's in it the chemical composition uh that sort of thing just tells us more and more about the most important star
We know of which is to say our sun uh so as a will fly some high attitude aircraft to gather that kind of spectroscopy information uurared photographere
The'll take a look at how uh the oclipse affects the ionosphere
The upper atmosphere when you take away the sun briefefit gives them an opportunity to test what the sun does uh to the atmosphere on the ground of be testing some radars
They use to predict it's pron itself whether to refine their accuracy
So it does nature
It's naturres opportortity and natural experiment uh
Which scientists always love to take a manager of yep
What scientists doesn't love what nature's experiment
It sounds pretty great
It's also just an inspiring moment
That we is humange
And don't get to see that often
But in terms of safety
You know there's the thing don't look directly at the sun cover your eyes is that true
What a people need to know about about how to observe this safely 没有异议
Well as we all know
We should never look at the sun
Directly ever and unfortuntely uring an eclilise or kind of tempted ted
If we want to see what's going on up there
So if you are in a situation
Where it is partial a partial glasses
Either you're in a place
It's never going to become total
Or you're waiting for that four minutes
Or so when there's a total eclips
You need to wear some of these eclipse glasses
These marallar glasses
Uh which block out uh enough of the sun's race to safely look right at it now if you're in the path of totality
You get to the point
Where the moon is completely cocoover the sun uh which invite you to take those glasses off
So you can see and marvel at the coroner
The glasses are so darky
You might miss out so be safe about it
But also don't forget to take them off
When it safe to do
So because that's the real clill
Yeah
That's the really special part
It sounds like what will you be doing to watch eclilise
嗯 有没有
I made plans to go to dallas
I will be in the cotton ball with about thirty thousand young people
Unfortunately
The weather forecast is not looking fabulous for dallas
As you were just talking about now ii be hardenby by fact that this event ent staged by by national oceananic and atmosphere administration
And who has more control over the weather than them right
Maybe
Maybe the part
The clouds and give us all we need is four minutes
At the right time
Right just just appealed in no and see they
You going to done
