What did Galileo discover which helped disprove the geo-centric model?, Uranus, Jupiter's Moons, Pluto, Gravity, What did Tyhco Brahe observe which would shatter the celestial spheres?, An Asteroid, Jupiter's Moons, A Comet, Uranus, How did Copernicus explain changes in Earth's seasons?, Retrograde Motion, Earth's Elliptical Orbit, Phases of Venus, Earth's Tilt, How did Newton's theory of gravity help confirm the idea of a Helio-centric solar system?, It explained retrograde motion, It explained the phases of Venus, It meant that you no longer needed a prime mover, It meant that the celestial spheres would smash, Why do satellites in low Earth orbits travel at higher speeds?, The Earth accelerates them with a stronger gravitational pull, Lower altitudes means there is less air resistance, Their orbit is not slowed down by the tidal pull of the moon, They have bigger thrusters, What happens to satellites which travel too fast?, Burn up in the atmosphere, Run out of fuel, Escape the Earth's gravitational pull, Crash into space debris, How do satellites adjust themselves to orbit in wider paths?, Slow down, Gravitational slingshot, Speed Up, Rocket Thrusters, Galileo discovered the Jovian moons. What was his other important observation which helped support the Helio-centric model?, Uranus, Kuiper Belt, Phases of Venus, Retrograde Motion, What did William Herschel discover which was invisible to the naked eye?, Uranus, Pluto, Neptune, Kuiper Belt, What did Edwin Hubble discover which changed our understanding of the cosmos?, The solar system is Helio-centric, Pluto is not a planet, Our solar system is surrounded by the Oort cloud, The Universe contains lots of galaxies.

Excelling - Space

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