- Mars (Wikipedia)
Mars is the fourth planet and the furthest terrestrial planet from the Sun. The reddish color of its surface is due to finely grained iron(III) oxide dust in the soil, giving it the nickname “the Red Planet”. Mars’s radius is second smallest among the planets in the Solar System at 3,389.5 km (2,106 mi). It has a surface gravity of 3.72 m/s2 (12.2 ft/s2), which is 38% of Earth’s gravity. The Martian dichotomy is visible on the surface: on average, the terrain on Mars’s northern hemisphere is flatter and lower than its southern hemisphere. Mars has a thin atmosphere made primarily of carbon dioxide and two irregularly shaped natural satellites: Phobos and Deimos.
- Denver (Wikipedia)
Denver (/ˈdɛnvər/ DEN-vər) is the capital and most populous city of the U.S. state of Colorado. Officially a consolidated city and county, it is located in the South Platte River valley on the western edge of the High Plains, just east of the Front Range of the Rocky Mountains. Denver is the 19th-most populous city in the United States and fifth-most populous state capital, with a population of 715,522 at the 2020 census. The Denver metropolitan area has a population exceeding 3 million and functions as the economic and cultural center of the broader Front Range Urban Corridor, home to over 5 million people