“I heard something really unusual was supposed to happen with Jupiter and Saturn right before Christmas. What?”

Answered by Brian Tonks – BYU-I daho Astronomy Professor The ancients noticed that seven celestial objects move relative to the stars: the Sun, the Moon, and the five visible planets (the word “planet” comes from the Greeks meaning “wanderer”—the Greeks knew them as wandering stars). Astrologers attributed special meaning to these objects. It is clear…

Due to the fluctuations of the Earth’s temperature over time, who is to say that we aren’t currently living at the Earth’s natural temperature?

Question Answered by NOAA, Air Resources Laboratory, Field Research Division, Idaho Falls, ID The Earth’s climate does vary over time due to factors such as the movement of continents, large-scale volcanic activity, changes in the Earth’s orbit, and variations in the Sun’s energy output. Because of these changing factors, there is not one fixed temperature…