A space telescope is a device in space that is operated using a remote to avoid any interference with the earth's atmosphere. Space telescopes' jobs are to help scientists gain more knowledge about how planets, stars, and galaxies form! Here is a picture of one!
Vacuoles are essential in plants because the plants need a place to store water, and be able to keep their upright shape. In animals, we have muscles and bones to keep us upright, and plants have vacuoles. Hope this helps!