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.
Halos and glare can be caused by eye problems that keep the eye from properly focusing light onto your retina (the thin lining located in the back of the eye). Common eye problems that can cause halos and glare include: Nearsightedness (difficulty seeing things far away) Farsightedness (difficulty seeing things nearby)
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.