Earth's orbit is an ellipse, not a perfect circle. Earth's distance from the Sun varies by about 3 million miles throughout the year. Earth's orbit's semimajor axis is approximately 93 million miles.

How does the Earth’s orbit influence our daylight and temperatures? As the Earth orbits the sun, it spins around an axis – picture a stick going through the Earth, from the North Pole to the South ...

Why does the Earth’s tilt create our season? The Earth orbits the Sun, but with a tilt. That tilt is important to those of us on the planet because it creates our seasons. How does that work? What ...

Earth, sun, moon: three objects in space whose interactions have a pretty big impact on our lives. Earth orbits the sun once a year, and it rotates on its axis about once a day (depending on your ...

Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around (peri) the sun (helios).

The object, the latest “quasi-moon” detected by astronomers, could be with us for almost another 60 years. By Robin George Andrews The Earth stands alone in the solar system as a habitable world, as ...

Earlier this week, rumors were circulating online that the Earth will have a second moon until 2083. The truth is, the Earth’s orbit does have a new guest, but it isn’t exactly a new moon. In ...

For the next few decades, a tiny asteroid will move quietly through space alongside Earth. This space rock, called 2025 PN7, ...