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.

The photo, taken during the X-37B’s seventh mission, shows Earth from High-Elliptical Orbit. On Feb. 20, 2025, the Secretary of the Air Force Public Affairs uploaded on the DVIDS website, what is ...

Earth will reach perihelion at 09:00 Universal Time on Saturday, January 4, 2025, the closest point to the sun in its annual, slightly elliptical orbit. The word comes from the Greek words peri (near) ...

The US military’s top secret X-37B space plane, which has been orbiting the Earth since December 2023 on its current mission, has slammed on the brakes. As detailed in a Boeing Space video, the plane ...

Perihelion, the point in a planet’s orbit where it is closest to the Sun, is a fascinating phenomenon that shapes much of our understanding of planetary motion. While Earth’s proximity to the Sun ...

The term "perihelion" describes the point in an astronomical body's orbit where it is nearest to the sun. Derived from the Greek words peri (around) and helios (sun), the word reflects its meaning. In ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...

During winter in the United States, the Earth's Northern Hemisphere is tilted away from the sun. Less sunlight shines ...