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Astronaut's eye view: Mars Express orbiting the Red Planet

Date:
June 3, 2010
Source:
European Space Agency
Summary:
A new video shows what future astronauts would see from their cockpit: Mars turning below as they sweep around the Red Planet. Last month, ESA's Mars Express snapped images every minute to create a unique video that loops through a complete orbit of Earth's neighbor.

Still image from a time-compressed video of a single Mars Express orbit (27 May 2010).
Credit: Image courtesy of European Space Agency

A new video shows what future astronauts would see from their cockpit: Mars turning below as they sweep around the Red Planet. Last month, ESA's Mars Express snapped images every minute to create a unique video that loops through a complete orbit of Earth's gorgeous neighbour.

Mars holds a special fascination for humans. Its relative proximity and its solid surface make it a tantalising target for exploration. Thanks to this new video from Mars Express, we can now imagine what it will be like to orbit the Red Planet some day, possibly searching for a place to land.

Last month, mission controllers commanded the Visual Monitoring Camera (VMC) to acquire an image of Mars every minute during one complete, 7-hour orbit. The VMC is a low-resolution, non-scientific digital camera originally used only to confirm separation of the Mars Express lander in 2003.

The resulting still images have been combined to create a unique video as Mars Express loops between its greatest height above the surface, 10 527 km, to its lowest, at just 358 km, and back again. This is the first such video ever generated from a spacecraft orbiting Mars.

A constellation of giant volcanoes

The giant volcanoes of Mars can be clearly seen at the start of the video, visible as a constellation of dark spots on the desert surface. They are followed by a glimpse of the icy South Pole before the spacecraft plunges into the darkness of the planet's night side. Daylight returns with a soaring ride over the spiral ices of the North Pole.

Near the beginning and end of the video, as Mars Express slows down during the highest arc of its orbit, Mars can be seen rotating on its axis. At the very end, Phobos passes far beneath Mars Express, and the tiny moon's disc can be seen as a dark circle moving from top to bottom in the movie.

The video clearly illustrates the highly elliptical orbit of Mars Express, with the journey around the planet starting slowly at high altitude and gaining speed as the altitude lowers.

It also shows how Phobos orbits Mars as well as numerous geographic features on the surface. The fact that the viewer enters darkness on the night side and comes back out on the morning side (and can see surface features rotating into the light) also shows how night and day are created by a planet's rotation, just like our own dusk and dawn on Earth.

Seven-hour orbit and 600 raw images

The images used to generate the video, 600 in total, were acquired during the 8194th orbit on 27 May 2010 between 02:00 and 09:00 UTC (03:00-10:00 CEST) and were transmitted to Earth a few hours later via ESA's 35 m-diameter New Norcia deep space antenna in Australia.

This unique video was produced through a cooperative effort between the scientists and mission controllers who care for Mars Express during its regular daily scientific exploration activities.

Animations can be viewed at: http://www.esa.int/esaCP/SEMOR15XT9G_FeatureWeek_1.html


Story Source:

The above story is based on materials provided by European Space Agency. Note: Materials may be edited for content and length.


Cite This Page:

European Space Agency. "Astronaut's eye view: Mars Express orbiting the Red Planet." ScienceDaily. ScienceDaily, 3 June 2010. <www.sciencedaily.com/releases/2010/06/100602094119.htm>.
European Space Agency. (2010, June 3). Astronaut's eye view: Mars Express orbiting the Red Planet. ScienceDaily. Retrieved September 18, 2014 from www.sciencedaily.com/releases/2010/06/100602094119.htm
European Space Agency. "Astronaut's eye view: Mars Express orbiting the Red Planet." ScienceDaily. www.sciencedaily.com/releases/2010/06/100602094119.htm (accessed September 18, 2014).

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