at first there was a very big cloud of hydrogen
then, because of the gravity, the cloud started to get smaller and smaller, the hydrogen particles got closer and some time later, the pressure got so, huge that a nuclear fushion process became and the hydrogen started to turn into helium
Astronomers think the sun will die in 2012
Parallax is the method that astronomers use to measure the distance from the sun to the earth.
Today's astronomers inherit the benefit of literally centuries of measurements with ever greater accuracy and precision. Standing as they do on the shoulders of giants, they have begun to perceive a true sense of the huge ginormity of the sun and its dimensions, and are coming to recognize that the sun is so gigantic that it has never been lost.
Astronomers think Pluto is a dwarf planet. And they're right.
No.
For two or three hundred years, astronomers have had a fair idea the the Sun is not the center of the Universe.
Astronomers can predict eclipses because they understand the movements of the Earth, Moon, and Sun in space. By tracking their positions and orbits, astronomers can calculate when the Moon will pass in front of the Sun (solar eclipse) or when the Earth will pass between the Sun and the Moon (lunar eclipse). This knowledge allows astronomers to forecast eclipses with accuracy.
Astronomers use special filters to observe the sun because the sun emits high-intensity light that can damage the eyes and sensitive equipment. These filters help to reduce the brightness of the sun and allow astronomers to safely study its features, such as sunspots and solar flares.
Astronomers study celestial bodies, helio astronomers specifically study suns.
The Big Bang
Cus they is BOSS
Astronomers believe that the solar system formed from a giant rotating cloud of gas and dust called the solar nebula. As the cloud collapsed under its own gravity, it began to spin faster and eventually formed a flat, rotating disk. The Sun formed at the center, while the planets and other objects in the solar system accreted from the material in the disk.