they use telescopes gosh you people are stupid
The telescope was invented in 1620 so they used that. Man's observation of the stars and planets has been going on thousands of years.
Tools such as magnifying glasses and microscopes can be used to better observe objects.
satellites
ambot
A telescope.
Telescopes can be used.
telescope
They used a telescope
To take pictures of space objects and observe planets and their movement.
He didn't, he just used it to observe the planets. The telescope was actually made by Hans Lipphery.
to see what the planets look like. and to see what they would do over time.
It is used to observe features of stars, planets, and other celestial objects by their visible light (generated or reflected).
people use ultrasound technologies, such as sonar and ultrasound imaging to observe things that they cannot see directly.
opposition
Scientists do not observe Mercury as often because it is difficult to do so.
Satellite is a gadget used to observe information about the space and planets are worlds where different creatures live and the planets are reflecting light.
The instrument scientists use to observe the planets is a high powered telescope.