Add Yahoo as a preferred source to see more of our stories on Google. The sun shines above the Earth’s horizon. Perihelion, the point when Earth is closest to the Sun, occurs annually in early January ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Notice anything different today? Is the sun ...

If I were on Mars, how often would I see Earth transit the Sun? Steven RiserConyers, Georgia From Mars, Earth transits the Sun four times in a 284-year cycle. The transits occur in either May or ...

Every year in early January, Earth reaches the closest point in its orbit to the Sun, a moment astronomers call perihelion. We are slightly nearer to our star and receiving more solar energy than we ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. About 92 million miles from the sun, Earth and its 8.2 ...