Active lava flows at volcanoes might move several feet per minute when hot. As the lava flows cool, they slow down to a rate of only a few feet per day. Geologists in Hawaii keep a close watch on active lava flows. They use handheld global positioning system (GPS) receivers to map lava flows as accurately as possible.
Libra, Aquarius, Gemini. Religion & Spirituality. Air is the element of the mind, and airy types know that everything begins with an idea. These are the idea people, who breeze in and offer a fresh perspective on the situation at hand.
Gemini Dates: May 21 to June 20. Gemini dates in astrology are from typically May 21 to June 20. If your birthday falls in this date range, you have a Gemini Sun sign. Although Gemini horoscope birth dates can change depending on the year, these are customarily the Gemini calendar dates. For about 30 days each year, the Sun travels through the part of the zodiac occupied by Gemini.