Ultraviolet light. Light therapy boxes should be designed to filter out harmful ultraviolet (UV) light, but some may not filter it all out. UV light can cause skin and eye damage. Look for a light therapy box that emits as little UV light as possible. If you have concerns about light therapy and your skin, talk to your dermatologist.
The reason behind it has to do with the pretty, little planet called Venus. She will be entering her rare retrograde phase on July 25 th, 2015. Astrologically, a Venus Retrograde period is one of the most important times for matters of love. It happens every 18 months to two years and every time Venus does her backwards dance, relationships end up being the topic on everyoneâs minds. Karma also plays into this period, which makes it all the more special.
This article is about the apparent motion of planets as observed from a particular vantage point. For retrograde motions of celestial bodies relative to a gravitationally central object, see Retrograde motion.As Earth (blue) passes a superior planet, such as Mars (red), the superior planet will temporarily appear to reverse its motion across the sky.Retrograde motion is the apparent motion of a planet to move in a direction opposite to that of other bodies within its system, as observed from a particular vantage point.Direct motion or prograde motion is motion in the same direction as other bodies.he more distant planets retrograde more frequently, as they don't move as far in their orbits while Earth completes an orbit itself. The center of the retrograde motion occurs when the body is exactly opposite the sun, and therefore high in the ecliptic at local midnight.