The difference between a telescope and telescope binoculars is one eye. With a telescope you peer through the lens with one eye and with telescope binoculars you use them both. Additionally, telescope binoculars are similar to traditional binoculars, only with a much longer focal length.
It has been said that a person can see more in the sky with a good pair of binoculars than with a cheap telescope, and telescope binoculars are designed with star gazing in mind with wider aperture opening to allow more light into the lenses, offering a brighter view of the viewing subject. There are many binoculars on the market which can serve as telescope binoculars with the right focal length and magnification power, along with a reasonably wide lens opening.
Porro prism binoculars are better suited for night time gazing as they absorb less light through the prism path as do roof prism binoculars and will render a much brighter image when used as telescope binoculars in the typically low light conditions of nighttime viewing. However, upgrading optical quality and lens coatings are rapidly allowing the manufacturing of roof prism binoculars to meet the quality of porro prism...