Johannes Kepler developed the laws of planetary motion.
However he was German not Austrian.
Johannes Kepler
There are eight planets, which can also be loosely descibed as major planets. Below that there are dwarf planets and then minor planets, also know as asteroids.
Scientists predict that they are planets because there wouldn't be random gas' from unknown places
they deleloped be being born i think=]
They believe the planets formed from a disc of gas and dust called a "protoplanetary disc".
Johannes Kepler developed the laws of planetary motion.However he was German not Austrian.
The Austrian scientist who developed laws describing the motion of planets is Johannes Kepler. Although he was born in what is now Germany, he worked in Austria and formulated the three laws of planetary motion in the early 17th century. These laws describe the elliptical orbits of planets, the relationship between a planet's orbital period and its distance from the Sun, and the areas swept out by a planet as it orbits. Kepler's work laid the foundation for modern astronomy and greatly advanced our understanding of planetary motion.
The Austrian scientist you are referring to is Johannes Kepler. Although he was German by birth, Kepler spent a significant part of his career in Austria. He is best known for formulating the three laws of planetary motion, which describe how planets orbit the sun in elliptical paths, with varying speeds, and in relation to their distance from the sun.
They are gas planets
Johannes Kepler
Telescope
scientists who found them
Only Earth and Venus has a well developed atmosphere out of the rocky planets. Note that the rocky planets are Mercury, Venus, Earth and Mars.
because dwarf means tiny
Observatory.
Studying the earth helps scientists to understand other planets since the earth is part of the solar system. Scientists use the features of the earth to compare them with what other planets hold.
Scientists often look for the molecule water when investigating the possibility of life on other planets. Water is essential for all known forms of life and its presence can indicate the potential for habitability on other planets.