Can you look at the Sun through a telescope? Not without a proper solar filter, of course!! The Sun is the nearest star, and it displays a rich variety of sights for a properly-equipped amateur astronomer. There are filters that show sunspots and solar granulation and other features. Other more complex filters show the Sun at a very specific wavelength where you can see immense flares and prominences along the limb. Here’s some basic advice on selecting a solar filter for your telescope.
How To Choose a Solar Filter
The Best Way to View The Sun