Astrophysics Quote by Neil deGrasse Tyson
““Newton's laws specifically state that, while the gravity of a planet gets weaker and weaker the farthest from it you travel, there is no distance where the force of gravity reaches zero. The planet Jupiter, with its mighty gravitational field, bats out of harm's way many comets that would otherwise wreak havoc on the inner solar system. Jupiter acts as a gravitational shield for Earth, a burly big brother, allowing long (hundred-million-year) stretches of relative peace and quiet on Earth. Without Jupiter's protection, complex life would have a hard time becoming interestingly complex, always living at risk of extinction from a devastating impact.””
About This Quote
Source Lecture: Cosmos series, 2018
Jupiter's massive gravity shields Earth from many comets, creating a long period of relative safety that allowed complex life to evolve.
In simple terms: Jupiter protects Earth from impacts.
Jupiter protects Earth.
Themes
Mood
Type
When to use this quote
- Space exploration
- education
- planetary defense
Key Concepts
Questions to Reflect On
- What would Earth be like without Jupiter?
- How does this influence the search for life?
If Jupiter were absent, impacts would be more frequent.