spectroscope
Telescope
color
Scientists use observation and experimentation to learn about the natural world.
a magnifying glass.
Because of the greenhouse effect.
the scientist viewed the stars with his brand new telescope.
I dunnooo :S
An astronomer studies the sun, moon, stars, planets, and other celestial bodies in outer space. They use telescopes and other instruments to observe and analyze these objects, as well as conduct research to understand their properties and behavior.
An astronomer or an astrophysicist studies the physical properties of celestial bodies such as stars, planets, galaxies, and other objects in the universe. They use observations, mathematical models, and data analysis to understand the behavior and characteristics of these objects.
Scientists use color, size, brightness, and temperature to classify stars.
Scientists use properties such as luminosity, temperature, mass, size, and spectral characteristics to group stars. These properties help categorize stars into different classes based on their similarities and differences.
He use Weapon with a stone