Popularity of the Name Raisa. This name is not popular in the US, according to Social Security Administration, as there are no popularity data for the name. This doesn't mean that the name Raisa is not popular in other countries all over the world.
Causes of Halos and Glare. Halos typically occur when your surroundings are mostly dim or dark whereas glare is more likely to happen during the day. Halos and glare can be a normal response to bright lights or, in some cases, can be the result of a more serious eye problem.
A little atmospheric reflection gave the moon a mysterious ring of light overnight. The white ring that encircled the moon isn't much of a mystery, according to NASA scientists. The ring is caused by the reflection of the moon's light from ice crystals in the upper atmosphere. The hexagonal shape of the crystals causes the light to focus into a ring, according to the Ask an Astrophysicist feature on the Goddard Space Flight Center's Web site.