Their eyes, ground-based telescopes, space telescopes.
Astronomers.
Astronomers typically look through telescopes at the stars to study celestial objects such as planets, stars, galaxies, and other phenomena in the universe. They use telescopes to gather data and make observations that help expand our knowledge of the cosmos.
Astronomers
The study of the planets in their orbits falls under the field of astronomy. Astronomers use telescopes and other scientific instruments to observe and analyze the movements and characteristics of planets in our solar system and beyond.
Some astronomers study how matter behaves using particle accelerators.
Astronomers use a telescope to view planets directly.
Astronomers cannot locate extrasolar planets with telescopes because these planets are outside of our solar system and too far away for telescopes to directly observe. Instead, astronomers use indirect methods such as radial velocity and transit techniques to detect these distant planets.
Teams of astronomers have studies all possible planets.
Astronomers. They love to look at planets with a telescope.
Average density of the planet
Many astronomers, historians, regular people, and scientisis know about the planets in our Solar system.
astronomers
Astronomers.
Astronomers (and their ilk) study stars and planets.
Astronomers typically look through telescopes at the stars to study celestial objects such as planets, stars, galaxies, and other phenomena in the universe. They use telescopes to gather data and make observations that help expand our knowledge of the cosmos.
Astronomers
Astronomers are lucky in their lifetimes to see a syzygy occuring in the outer level of planets, after the asteroid belt