Wearing heavy cotton clothing, head protection and a device to help her breathe, Jessica Ball recently spent the night observing lava coming out of Hawaii's Kilauea volcano.Ball is a researcher with the United States Geological Survey, the agency which studies the country's land and natural resources.She was at "fissure 8," one of at least 22 holes that have opened around the Kilauea volcano in the past two months.Rock from deep inside the volcano is so hot that it has become a liquid.The liquid, known as lava, began flowing from the openings in early May.At fissure 8, the lava shot up as high as 45 meters in the air before slowly heading for the Pacific Ocean a few kilometers away."The volcano is doing what it wants to," Ball told the Reuters news service."We're reminded what it's like to deal with the force of nature."Scientists have been in the area of the volcanic activity measuring the eruptions 24 hours a day, seven days a week since Kilauea first exploded.