Earth was at perihelion on Jan. 4; what the heck is it, and when does it occur?
Somewhere out there could be a giant new planet in our solar system: so where is it?
Why does the Earth follow an elliptical orbit whereas the moon follows a circular orbit? - Quora
New 'second rock from the sun' found
Do You Really Know Why Earth Has A Solstice? : 13.7: Cosmos And Culture : NPR
3.4 Earth's Orbital Fluctuations and Climate Change – Environmental Geology
Earth's orbit - Wikipedia
Why Are Planetary Orbits Elliptical? - YouTube
Perihelion and Aphelion 2023 / 2024
Earth Is Spiraling Away From The Sun For Now, But Will Eventually Crash Into It
What is a Highly Elliptically Orbit? - everything RF
The Orbit of Earth. How Long is a Year on Earth? - Universe Today
How does Earth orbit the Sun? - BBC Sky at Night Magazine
Orbits & Kepler's laws
Orbital Eccentricity: Why Do Planets Travel In Elliptical Path?
How, exactly, does planet Earth move through the Universe? - Big Think
Elliptical Orbits Definition, Equations & Example - Video & Lesson Transcript | Study.com
Solved A spacecraft in an elliptical orbit around the earth | Chegg.com
Tides and Water Levels: NOAA's National Ocean Service Education
Computer diagram showing the elliptical orbit of the Earth around the Sun. Earth's orbit is not a perfect circle, but rather an ellipse. However, with Stock Photo - Alamy
Earth's Orbit | CK-12 Foundation
The University of the State of New York
