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Sungazing is the unsafe practice of looking directly at the Sun.It is sometimes done as part of a spiritual or religious practice, most often near dawn or dusk. [1] The human eye is very sensitive, and exposure to direct sunlight can lead to solar retinopathy, pterygium, [2] cataracts, [3] and potentially blindness.
Stand with your back to the sun so you can see the shadow of your head and shoulders. Put the other piece of paper on the ground and hold the piece with the aluminum foil above it.
Starting at approximately the end of November to mid-January, at around the 69th parallel north, the Inuit never see the sun. During this time, though dark, the sky is often obscured by weather conditions like blowing snow or cloud cover. Then, for 10 weeks beginning in mid-May, the sun never sets. This also means that in the spring, summer ...
The annular solar eclipse is a prelude to a total solar eclipse that will take place April 8, 2024. During a total solar eclipse, the moon passes between the sun and earth and completely blocks ...
A European spacecraft is showing us how dynamic the Sun is with newly released images, the highest-resolution images of our star's surface so far. Look (safely) at the Sun's surface in the highest ...
The particles scatter light from the sun and the rest of the sky through the line of sight of the observer, thereby decreasing the contrast between the object and the background sky. Particles that are the most effective at reducing visibility (per unit aerosol mass) have diameters in the range of 0.1-1.0 μm.
The long, vertical dark lines show where the troughs of gravity waves have roughened the surface. The brighter regions show the crests of the atmospheric waves. Beneath the crests, the water is calm and reflects light directly back towards the sensor. Clouds commonly form at the crests of the waves, and such clouds are visible throughout this ...
With a conventional telescope, an extremely dark filter at the opening of the primary tube is used to reduce the light of the Sun to tolerable levels. Since the full available spectrum is observed, this is known as "white-light" viewing, and the opening filter is called a "white-light filter".