Scientists do not fully understand the universe and disagree on some facts, such as whether it is expanding or contracting. While there is no agreement on everything, there are some agreed upon facts, such as Venus having temperatures over 400°C and its day lasting longer than its year. Many scientists are still searching for life elsewhere in the universe, though Venus does not seem suitable due to its atmosphere consisting mainly of carbon dioxide and air pressure 90 times greater than Earth's. The author is sitting in a small boat traveling down a river in the South American rainforest. It is hot and raining frequently, which explains the forest's name. Travel is mostly by water or plane as there are no paths. The forest smells