What event actually made it possible for the three laws of planetary motion to be discovered?

What specific event really made it possible for the three laws of planetary motion to be discovered? When NASA and a group of astronomers sent up a spacecraft designed to find planets orbiting other stars, they named it after Kepler.

What keeps the planets and sun in place in other words why are they not floating around and bumping into one another?

The gravity of the Sun keeps the planets in their orbits. They stay in their orbits because there is no other force in the Solar System which can stop them.

What is the name of the first black hole ever discovered and how did we see it?

Based on observations in Greenwich and Toronto in the early 1970s, Cygnus X-1, a galactic X-ray source discovered in 1964, became the first astronomical object commonly accepted to be a black hole.

Which did Kepler notice about planetary motion that caused him to propose Kepler’s first law of orbital motion?( 1 point?

A line between a planet and the sun sweeps out two equal areas at different places as it moves along its orbit. Which did Kepler notice about planetary motion that caused him to propose Kepler’s first law of orbital motion? The distance to the sun varies.

Why do planets spin?

Round and round the planets spin. This is simply the result of the initial rotation of the cloud of gas and dust that condensed to form the Sun and planets. As gravity condensed this cloud, conservation of angular momentum increased the rotational speed and flattened the cloud out into a disk.

Why does Earth not crash into the Sun?

The earth is literally falling towards the sun under its immense gravity. So why don’t we hit the sun and burn up? Fortunately for us, the earth has a lot of sideways momentum. Because of this sideways momentum, the earth is continually falling towards the sun and missing it.