Tag Archives: Mars

Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, after Mercury. Named after the Roman god of war, it is often referred to as the “Red Planet” because the iron oxide prevalent on its surface gives it a reddish appearance. Mars is a terrestrial planet with a thin atmosphere, having surface features reminiscent both of the impact craters of the Moon and the valleys, deserts, and polar ice caps of Earth.

Mars/Earth comparison:
Average Distance from Sun: 142 million miles (228.5 million km) / Earth: 93 million miles (150 million km)
Average Speed in Orbiting Sun: 14.5 miles per second (23.34 km per second) / Earth: 18.5 miles per second (29.77 km per second)
Diameter: 4,220 miles (6,791 km) / Earth: 7,926 miles (12,755 km)
Tilt of Axis: 25 degrees / Earth: 23.5 degrees
Length of Year: 687 Earth Days / Earth: 365.25 Days
Length of Day: 24 hours 37 minutes / Earth: 23 hours 56 minutes
Gravity: 0.375 that of Earth
Average Temperature: -81 degrees F (-62.78 degrees C) / Earth: 57 degrees F (13.88 degrees C)
Atmosphere: mostly carbon dioxide, some water vapor / Earth: nitrogen, oxygen, argon, others
Number of Moons: 2 / Earth: 1

The poles of Mars

The planet Mars has two permanent polar ice caps. During a pole’s winter, it lies in continuous darkness, chilling the surface and causing the deposition of 25–30% of the atmosphere into slabs of CO2 ice (dry ice). When the poles are again exposed to sunlight, the frozen CO2 sublimes, creating enormous winds that sweep off the poles as fast as 400 km/h. These seasonal actions transport large amounts of dust and water vapor, giving rise to Earth-like frost and large cirrus clouds. Clouds of water-ice were photographed by the Opportunity rover in 2004.
The caps at both poles consist primarily of water ice. Frozen carbon dioxide accumulates as a comparatively thin layer about one metre thick on the north cap in the northern winter only, while the south cap has a permanent dry ice cover about 8 m thick. Photo: windows2universe.org

How Mars would look if it still had water

What if Mars still had liquid water on its surface and a thick atmosphere filled with clouds, like Earth? How would it look like? Software engineer Kevin Gill of JPL (NASA’s Jet Propulsion Laboratory) wondered this and prepared an image using data from NASA’s Mars Reconnaissance Orbiter (MRO)(1) and Mars Orbiter Laser Altimeter (MOLA)(2). The result is stunning!

Gill picked an arbitrary sea level and used GIMP (a free and open-source raster graphics editor used for image retouching and editing) to paint the features onto the satellite images using these measurements.

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SpaceX unveils the Interplanetary Transport System (a spaceship and rocket to colonize Mars) – video

Elon Mask, the founder, CEO, and Lead Designer of the private space travel company SpaceX announced that “they are planning to get humans to Mars in six years”. In order to achieve this goal, Musk revealed the Interplanetary Transport System, which aims to reach Mars with a human crew for the first time in history.

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NASA Releases 360 Degrees Interactive Image of Mars

On February 2016, NASA has released an interactive 360 degrees image of Mars, and you can see it on the popular video uploading site youtube. You can see our neighbor planet’s surface with your own eyes, in ultra HD!

The component images of this scene were are taken at downwind face of “Namib Dune” on Dec. 18, 2015, by the Mast Camera (Mastcam) on NASA’s Curiosity Mars rover during the 1,197th Martian day, or sol, of the rover’s work on Mars. They include a portion of Mount Sharp(1) on the horizon. You can use the arrows in the top left, or click and drag your cursor or mouse, to move the view up/down and right/left.

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Calbuco volcano (Chile) erupts – amazing video

The Calbuco volcano in southern Chile has erupted twice and the people have been evacuated. It is the first eruption of the stratovolcano in 42 years; results in huge ash cloud over a mountainous area in the south of Chile.

The amazing footage from the area shows a huge column of lava and ash being sent several kilometers into the air.

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