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

Watch: Others Will Follow (Short Sci-Fi Film)

A great short science fiction film, “Others Will Follow”, created and directed by Andrew Finch and published on Vimeo, tells the story of a manned Mars mission. An accident occurs and the spacecraft breaks apart, the last survivor (we don’t see what happens to the rest of the crew, but presumably they have died) manages to send an inspirational message back to Earth. A must-watch.
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Watch: NASA, SpaceX, and Blue Origin’s Rockets comparison

Tech Insider published a video titled “How NASA, SpaceX, and Blue Origin’s Monster Rockets Compare”. Still, the old Saturn V, which was used by NASA between 1967 and 1973 and took humans to the Moon, is the biggest and strongest rocket ever built. But new rockets are coming and that’s finally about the change. Here is the past and future monster rockets comparison:
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Living on Mars is a terrible idea, scientist say. We should colonize Titan, instead

In September 2017, Elon Musk, the founder and CEO of SpaceX has revealed a new plan to colonize Moon and Mars with giant reusable spaceships. They are ambitiously planning to send the first humans to Mars as early as 2024 to build the foundations for the first Martian city. But is Mars really the best place for humans to settle? Some scientists, like Amanda HendrixNotes 1, the American planetary scientist, thinks it’s not, and we should be looking somewhere else and colonize Titan, Saturn’s largest moon, instead.
Continue reading Living on Mars is a terrible idea, scientist say. We should colonize Titan, instead

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