Search results
Results from the WOW.Com Content Network
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.
Seasons. Mars has an axial tilt of 25.19°, quite close to the value of 23.44° for Earth, and thus Mars has seasons of spring, summer, autumn, winter as Earth does. As on Earth, the southern and northern hemispheres have summer and winter at opposing times. However, the orbit of Mars has significantly greater eccentricity than that of Earth.
Earth-based telescopes equipped with charge-coupled devices can produce useful images of Mars, allowing for regular monitoring of the planet's weather during oppositions. [ 93 ] X-ray emission from Mars was first observed by astronomers in 2001 using the Chandra X-ray Observatory , and in 2003 it was shown to have two components.
Areography, also known as the geography of Mars, is a subfield of planetary science that entails the delineation and characterization of regions on Mars. [1][2][3] Areography is mainly focused on what is called physical geography on Earth; that is the distribution of physical features across Mars and their cartographic representations.
The Mars hoax was a hoax circulated by e-mail that began in 2003, that claimed that Mars would look as large as the full Moon to the naked eye on August 27, 2003. The hoax has since resurfaced each time before Mars is at its closest to Earth, about every 26 months. It began from a misinterpretation and exaggeration of a sentence in an e-mail ...
Cydonia (Mars) Coordinates: 40.74°N 9.46°W. Small part of the Cydonia region, taken by the Viking 1 orbiter and released by NASA / JPL on July 25, 1976. Cydonia (/ sɪˈdoʊniə /, / saɪˈdoʊniə /) is a region on the planet Mars that has attracted both scientific [1] and popular interest. [2][3] The name originally referred to the albedo ...
Dawn is a retired space probe that was launched by NASA in September 2007 with the mission of studying two of the three known protoplanets of the asteroid belt: Vesta and Ceres. [ 1 ] In the fulfillment of that mission—the ninth in NASA's Discovery Program — Dawn entered orbit around Vesta on July 16, 2011, and completed a 14-month survey ...
Timeline of Mars Science Laboratory. Curiosity rover on Mars (5 August 2015) The Mars Science Laboratory and its rover, Curiosity, were launched from Earth on 26 November 2011. As of October 21, 2024, Curiosity has been on the planet Mars for 4340 sols (4459 total days; 12 years, 76 days) since landing on 6 August 2012. (See Current status.)