Planets with Volcanoes:
* Earth: Our own planet is home to a vast array of volcanoes, both active and extinct. The most famous examples include Mount Everest, Mount Fuji, and Kilauea in Hawaii.
* Venus: This planet has the most volcanoes of any in our solar system, with over 1,600 identified. Many are thought to be extinct, but some might still be active.
* Mars: Mars boasts the largest volcano in the solar system, Olympus Mons, a shield volcano three times the height of Mount Everest. Other notable volcanoes include the Tharsis Montes.
* Io (Moon of Jupiter): This moon is a volcanic powerhouse, with constantly erupting volcanoes spewing sulfur and other materials. It's the most volcanically active body in our solar system.
* Triton (Moon of Neptune): While less active than Io, Triton has cryovolcanoes that erupt icy materials.
Planets with Canyons:
* Earth: The Grand Canyon in the United States is one of the most famous canyons on Earth, formed by the Colorado River. Other canyons include the Yarlung Tsangpo Grand Canyon in Tibet and the Fish River Canyon in Namibia.
* Mars: Valles Marineris, a massive canyon system stretching for thousands of kilometers, is the largest canyon in the solar system. It's so vast that it could hold several Grand Canyons.
Planets with Both Volcanoes and Canyons:
* Mars: As mentioned above, Mars has both volcanoes and canyons. Valles Marineris is thought to have formed due to tectonic activity and volcanic eruptions.
* Venus: While not as dramatic as the canyons on Mars, Venus has rift valleys, which are canyons formed by the movement of the planet's crust.
Important Note: The list above focuses on confirmed volcanoes and canyons. There's ongoing research and discovery, so it's possible other bodies in our solar system, like moons or asteroids, might also harbor these features.
