For those that have not tried this kind of photography, here is a little background. Those photos are taken in the darkest places possible, to allow you to see the Milky Way and stars. There are "Dark Sky" apps that can help show you the darkest places in the world. Moonlight is usually too bright and this means that you take those photos around the time of the new moon, or well after the moon has set. Most of these photography trips are planned around a new moon to minimize moonlight. All of the exposures are long exposures, usually 15-30 seconds. All are taken with a tripod. Since the stars are moving in the sky, you will get "star trails" if you use exposures longer than 15-30 seconds. This means the stars turn from dots into curved lines that look like small commas. Twilight (the time after sunset) lasts much longer than most people realize. There is some residual light from the sun for up to two hours or so after sunset, and most of the photography is obtained after that time. You also need a camera that is very sensitive and functions well in low light. As for the landscape you can provide lighting or leave it natural. There are times each may be best.