You will be fine looking at it during totality, but at other times, when the sun is only partly covered, it can damage your eyes and lead to permanent damage to your vision.
This is a solar eclipse, specifically a total eclipse (Total solar eclipse I think is how you would word it).
-- During a partial solar eclipse, part of the sun is obscured from our view (by the moon) and the rest of it is still there. -- During a total solar eclipse, the entire disk of the sun is obscured from our view (by the moon).
Build an indirect solar eclipse viewer following the directions at the link.
The next solar eclipse in the UK area is on March 20, 2015. It will be a total solar eclipse, lasting around 2.5 minutes. However, you will only be able to view the eclipse from Faroes.However, the next solar eclipse in the actual UK is on September 23, 2090. Also a total solar eclipse, you can view best from the south-west of Cornwall.
A lunar eclipse can be seen from anywhere on the dark side of the Earth. The Moon is opposite the Sun because the eclipse happens at Full Moon, and the Moon should be at a good height, so it's preferable to view it from a place where the eclipse starts a couple of hour after sunset.
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It is o.k. to view a lunar eclipse, because unlike a solar eclipse you are not viewing direct sunlight which can be harmful and blinding but rather reflected light. When viewing a lunar eclipse you would see even less light than viewing a full moon which we know is safe.
A lunar eclipse happens ON THE MOON, so it is visible from anywhere in the night half of the Earth. To see a lunar eclipse, go outside and look up. As long as the weather is clear, you'll be able to see it.
The corona of the Sun can only be seen with the naked eye during a total solar eclipse. However, with a special telescope called a coronagraph, you can view the solar corona at any time.During a solar eclipse, you can see the corona as a bright ring. But compared to the brilliance of the Sun itself, the corona is invisibly dim. That's why you can only see it when the Sun itself is hidden behind the Moon.
When the moon travels between the Earth and the sun, it causes a solar eclipse, obscuring the sun's light from view. During this event, the moon casts a shadow on the Earth, and observers in the path of the shadow experience a temporary darkening of the sky. Depending on the alignment, the eclipse can be total, partial, or annular, with a total eclipse resulting in complete obscuration of the sun. This phenomenon also creates a striking visual display, allowing for the observation of the sun's corona.
Depending on the weather, all of North America will be able to see a total lunar eclipse on December 21, 2010. You can see the NASA Eclipse web page, to see a list of all eclipses from 2000 BC to 3000 AD.
Solar Eclipse