Earth was at perihelion on Jan. 4; what the heck is it, and when does it occur?
Tides and Water Levels: NOAA's National Ocean Service Education
Earth's Odd Orbit | EarthDate
Jupiter and Venus Squeeze Earth's Orbit - Scientific American
Orbits & Kepler's laws
Why Are Planetary Orbits Elliptical? - YouTube
Do You Really Know Why Earth Has A Solstice? : 13.7: Cosmos And Culture : NPR
How far is Earth from the sun? | Space
How does Earth orbit the Sun? - BBC Sky at Night Magazine
We've found an exo-planet with an extraordinarily eccentric orbit
Elliptical or Circular: What Is the Shape of a Planet's Orbit?
3.4 Earth's Orbital Fluctuations and Climate Change – Environmental Geology
Earth's orbit - Wikipedia
Kepler's laws of planetary motion | Definition, Diagrams, & Facts | Britannica
How Orbits Are Influenced by Gravity & Energy - Video & Lesson Transcript | Study.com
Perihelion and Aphelion 2023 / 2024
What are Highly Elliptical Orbits (HEO)? - SatNow
Solved A spacecraft in an elliptical orbit around the earth | Chegg.com
elliptical orbit Archives - Universe Today
Aphelion 2022: Earth Is Farthest From The Sun Today
Orbital Eccentricity: Why Do Planets Travel In Elliptical Path?
13.5 Kepler's Laws of Planetary Motion | University Physics Volume 1
What is an Elliptical Orbit? (with pictures)
