There are a ton of differences! While both work to make objects look bigger and gather light, the more a telescope magnifies an object, the dimmer that object appears. When you’re trying to look at comets, galaxies, etc. this becomes an issue because everything will look way too bright and with little detail. Telescopes usually have just a single eyepiece and show a small area. Binoculars have two eyepieces and show a much larger view at once.