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This list contains a selection of objects 50 and 99 km in radius (100 km to 199 km in average diameter). The listed objects currently include most objects in the asteroid belt and moons of the giant planets in this size range, but many newly discovered objects in the outer Solar System are missing, such as those included in the following ...
All planets listed are smaller than Earth and Venus, ... Mars: 0.5325 Shown for comparison ... Radius is in the range of 1.2 – 120 km. ...
Craters larger than roughly 50 km are named for deceased scientists and writers and others who have contributed to the study of Mars. Smaller craters are named for towns and villages of the world with populations of less than 100,000. Large valleys are named for the word "Mars" or "star" in various languages; smaller valleys are named for rivers.
Radar mosaic of two pancake domes in Venus's Eistla region—both 65 km (40 mi) wide and less than 1 km (0.62 mi) high. Much of the Venusian surface appears to have been shaped by volcanic activity. Venus has several times as many volcanoes as Earth, and it has 167 large volcanoes that are over 100 km (60 mi) across.
If the Sun–Neptune distance is scaled to 100 metres (330 ft), then the Sun would be about 3 cm (1.2 in) in diameter (roughly two-thirds the diameter of a golf ball), the giant planets would be all smaller than about 3 mm (0.12 in), and Earth's diameter along with that of the other terrestrial planets would be smaller than a flea (0.3 mm or 0. ...
Mars is rotating more quickly than it used to, according to data that NASA’s InSight lander collected on the red planet. ... (1,790 and 1,850 kilometers).
Mars comes closer to Earth more than any other planet save Venus at its nearest—56 million km is the closest distance between Mars and Earth, whereas the closest Venus comes to Earth is 40 million km. Mars comes closest to Earth every other year, around the time of its opposition, when Earth is sweeping between the Sun and Mars. Extra-close ...
This is significantly smaller than that of ... not be closer to Earth than 80,000,000 km ... per century for Venus, 3.8387 for Earth, 1.351 for Mars, ...