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2 dni temu · Mars is less than 56 million km (35 million miles) from Earth at its closest approach, but it recedes to almost 400 million km (250 million miles) when the two planets are on opposite sides of the solar system.
- Outflow Channels and Oceans
Mars - Outflow Channels, Oceans, Geology: Large flood...
- The Atmosphere
Unlike that of Earth, the atmosphere of Mars experiences...
- Mars as Seen From Earth
Mars - Red Planet, Exploration, Mysteries: To the...
- Atmosphere, Surface, Pressure
Mars - Atmosphere, Surface, Pressure: Carbon dioxide...
- Sparsely Cratered Plains
Mars - Sparsely-Cratered, Plains, Exploration: The smaller...
- Meteorites From Mars
Mars - Meteorites, Exploration, Origin: Scientists have...
- Human Exploration
Mars - Exploration, Rovers, Astronauts: Human exploration is...
- Character of the Surface
Mars - Craters, Valleys, Plains: The character of the...
- Outflow Channels and Oceans
4 dni temu · Mars has ice caps at its north pole and south pole, which consist mainly of water ice; however, there is frozen carbon dioxide present on their surfaces. Dry ice accumulates in the north polar region ( Planum Boreum ) in winter only, subliming completely in summer, while the south polar region additionally has a permanent dry ice cover up to ...
4 dni temu · At its closest approach, Mars is less than 56 million km (35 million miles) from Earth, but it recedes to almost 400 million km (250 million miles) when the two planets are on opposite sides of the solar system.
4 dni temu · Unlike that of Earth, the atmosphere of Mars experiences large seasonal variations in pressure as carbon dioxide, the main constituent, “snows out” at the winter pole and returns directly to a gas (sublimes) in the spring. Because the southern winter cap is more extensive than the northern, atmospheric pressure reaches a minimum during ...
1 dzień temu · The Andromeda Galaxy is approaching the Milky Way at about 110 kilometres (68 miles) per second. It has been measured approaching relative to the Sun at around 300 km/s (190 mi/s) as the Sun orbits around the center of the galaxy at a speed of approximately 225 km/s (140 mi/s).
4 dni temu · This page shows Mars location and other relevant astronomical data in real time. The celestial coordinates, magnitude, distances and speed are updated in real time and are computed using high quality data sets provided by the JPL Horizons ephemeris service (see acknowledgements for details).
1 dzień temu · The point on the atmospheric surface closest to the Earth's centre (interpreted as a natural surface of the land or sea that is accessible by a person) is the surface of the Arctic Ocean at the Geographic North Pole (6,356.77 km or 3,950 mi).
