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It was once expected that any icy body larger than approximately 200 km in radius was likely to be in hydrostatic equilibrium (HE). [7] However, Ceres (r = 470 km) is the smallest body for which detailed measurements are consistent with hydrostatic equilibrium, [ 8 ] whereas Iapetus (r = 735 km) is the largest icy body that has been found to ...
Mars is the fourth planet from the Sun.The surface of Mars is orange-red because it is covered in iron(III) oxide dust, giving it the nickname "the Red Planet". [22] [23] Mars is among the brightest objects in Earth's sky, and its high-contrast albedo features have made it a common subject for telescope viewing.
Among the highest nonvolcanic peaks on Mars, formed by the Hellas impact: Aeolis Mons ("Mount Sharp") 4.5 to 5.5 km (2.8 to 3.4 mi) [29] [n 7] 0.16: deposition and erosion [n 8] Formed from deposits in Gale crater; [34] the MSL rover has been ascending it since November 2014. [35] Vesta: Rheasilvia central peak
Space: 1889 is a tabletop role-playing game of Victorian-era space-faring, [2] created by Frank Chadwick and originally published by Game Designers' Workshop (GDW) from 1989 to 1990. It was the first roleplaying game to feature space colonization using steam technology in the style of Jules Verne , H.G. Wells , and Arthur Conan Doyle in what ...
The Sun, planets, moons and dwarf planets (true color, size to scale, distances not to scale). The following outline is provided as an overview of and topical guide to the Solar System:
Mars, Jupiter, Venus, Mercury and Saturn are potentially visible to the naked eye, but Mercury will be the hardest of those to spot. For Uranus and Neptune, you’ll need binoculars or a telescope.
Mars is much less tectonically active than Earth, and marsquakes are unlikely to have provided seismic waves of the required magnitude. [10] Most sizable craters on Mars date to the Late Heavy Bombardment , 4.1 to 3.8 billion years ago (the Noachian period), and are older than the landslide deposits in Valles Marineris.
Parodius (1988 video game) Parodius (1990 video game) PegLeg (video game) The Persistence; Phoenix (1980 video game) Pigs in Space (video game) Planet Laika; Planetoids (video game) Pocket Fleet; Power Punch II; Prey (2017 video game) Project Space Station; Project Sylpheed; Protector (Atari Jaguar video game) ProtoGalaxy; PULSAR: Lost Colony ...