They utilize Sunlight for this.
Because the sun is shining on them and illuminating them.
Exactly like rocks on the table in a dark room when you go in there
with a flashlight.
That was Galileo in the early 1600s.
I think when the telescope was invented, I think people use it to look at other planets. Even moons.
There are 178 known moons that orbit planets in our Solar System. A lot more might be discovered - depending in part on the size limit you want to use.
There is a cool calculator you can use to see any weight as it would be on other planets and moons. click on this link:Your Weight on Other Worlds
Earth is the only planet with one moon. Pluto use to be classified as a planet. It had only one discovered moon for a while, but astronomers have since found more moons belonging to Pluto.
"Weight" is not really a good word to use. A better term is "mass". The outer planets all have moons, and these can be used to get a value for the planet's mass ... the orbital period of a satellite depends on the mass of the primary and the semi-major axis of the orbit. It's possible to get quite good mass values for the outer planets by studying the orbits of their moons.
Probably not. Uranus and Neptune are significantly farther away than Jupiter and Saturn and many of their moons may be rather small and possibly dark-colored, which would make them hard to see from Earth. The only probe to visit the planets was Voyager 2 in 1986 and 1989 respectively. The probe discovered 11 previously unknown moons around Uranus and 6 around Neptune, and both have had more moons discovered since.
Galileo first used the telescope to study planets in 1609, when he heard about the invention of the telescope in the Netherlands and built his own version of it. He observed the planets, including Jupiter and its moons, which led to significant advancements in the field of astronomy.
Earth is the only planet with one moon. Pluto use to be classified as a planet. It had only one discovered moon for a while, but astronomers have since found more moons belonging to Pluto.
you can see mars and Jupiter but they look like stars unless you use a telescope ------------------------ Because stars shine - give off light - while planets do not.
you can use banana skin too shine shoes it works really great their skin have a kind of 'thing' that can shine shoes!!
Today we had to turn our projects in about the 3d solar system.