What’s Below the Solar System’s Plane? A Cosmic Perspective
TL;DR
Earth’s planets orbit the Sun in a relatively flat plane called the ecliptic, and there is no universal 'down' in space—the direction depends on the scale and frame of reference: beyond the solar system, stars lie in a galactic plane inclined about 60° to the ecliptic, and galaxies lie in the supergalactic plane; traveling in the apparent 'down' would eventually take you to other stars and galaxies, illustrating that spatial orientation in the cosmos is relative rather than fixed.
- Is there anything 'below' Earth in space? Yahoo
- What Lies Under Earth When Viewed From Space? Science Has a Surprising Answer bhandaradccb.in
- What is below Earth, since space is present in every direction? The Conversation
- University of Tennessee Professor Jeff Moersch Explains What Lies Beyond and Below Earth in Space Hoodline
- What’s Really Beneath Earth? The Answer Goes Way Beyond Space The Daily Galaxy
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