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Gravitational biology is the study of the effects gravity has on living organisms. Throughout the history of the Earth life has evolved to survive changing conditions, such as changes in the climate and habitat. However, one constant factor in evolution since life first began on Earth is the force of gravity.
As Jupiter is very massive, the side of Io nearest to Jupiter has a slightly larger gravitational pull than the opposite side. This difference in gravitational forces cause distortion of Io’s shape. Differently from the Earth’s only moon, Jupiter has two other large moons (Europa and Ganymede) that are in an orbital resonance with it.
Jupiter's gravity increased the velocity of objects within these resonances, causing them to shatter upon collision with other bodies, rather than accrete. [ 57 ] As Jupiter migrated inward following its formation (see Planetary migration below), resonances would have swept across the asteroid belt, dynamically exciting the region's population ...
According to the Jumping-Jupiter scenario, Jupiter's migration through the early solar system could have led to the ejection of a fifth gas giant. This hypothesis suggests that during its orbital migration, Jupiter's gravitational influence disrupted the orbits of other gas giants, potentially casting one planet out of the solar system entirely.
Gravitational field strength within the Earth Gravity field near the surface of the Earth – an object is shown accelerating toward the surface If the bodies in question have spatial extent (as opposed to being point masses), then the gravitational force between them is calculated by summing the contributions of the notional point masses that ...
Io's main source of internal heat comes from the tidal forces generated by Jupiter's gravitational pull. [3] This external heating differs from the internal heat source for volcanism on Earth, which is a result of radioactive isotope decay and residual heat from accretion.
Gravitational potential energy from Newtonian mechanics is defined as: [3] U = − G m 1 m 2 r , {\displaystyle U=-{\frac {Gm_{1}m_{2}}{r}},} where G is the gravitational constant , and the two masses in this case are that of the thin shells of width dr , and the contained mass within radius r as one integrates between zero and the radius of ...
In astrophysics, gravitational compression is a phenomenon in which gravity, acting on the mass of an object, compresses it, reducing its size and increasing the object's density. In the core of a star such as the Sun , gravitational pressure is balanced by the outward thermal pressure from fusion reactions , temporarily halting gravitational ...