image of the Day… Sunset Sequence in Mars…!!!

Sunset on Mars

NASA’s Curiosity Mars rover recorded this sequence of views of the sun setting at the close of the mission’s 956th Martian day, or sol (April 15, 2015), from the rover’s location in Gale Crater.

The four images shown in sequence here were taken over a span of 6 minutes, 51 seconds.

This was the first sunset observed in color by Curiosity.  The images come from the left-eye camera of the rover’s Mast Camera (Mastcam). The color has been calibrated and white-balanced to remove camera artifacts. Mastcam sees color very similarly to what human eyes see, although it is actually a little less sensitive to blue than people are.

Dust in the Martian atmosphere has fine particles that permit blue light to penetrate the atmosphere more efficiently than longer-wavelength colors.  That causes the blue colors in the mixed light coming from the sun to stay closer to sun’s part of the sky, compared to the wider scattering of yellow and red colors. The effect is most pronounced near sunset, when light from the sun passes through a longer path in the atmosphere than it does at mid-day.

Malin Space Science Systems, San Diego, built and operates the rover’s Mastcam. NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology, Pasadena, manages the Mars Science Laboratory Project for NASA’s Science Mission Directorate, Washington. JPL designed and built the project’s Curiosity rover.  For more information about Curiosity, visit http://www.nasa.gov/msl and http://mars.jpl.nasa.gov/msl.

Credit: NASA/JPL-Caltech/MSSS/Texas A&M Univ.

Source……www.nasa.gov

Image of the Day…. Images of MARS sent by India”s MOM …

Mars and its atmosphere, seen by MOM spacecraft

Two early images from India’s MOM spacecraft. One shows an edge of Mars, with the planet’s tenuous atmosphere above. The other shows the whole planet. Beautiful!

India's Mars Orbiter Mission (MOM) captured this image of the

The world applauded India last week as its maiden interplanetary spacecraft – the Mars Orbiter Mission, or MOM – achieved orbit around the Red Planet. Here are some of the first images transmitted from MOM. At top, a gorgeous shot of the limb, or edge, of Mars with the tenuous Martian atmosphere silhouetted against the blackness of space. The Indian Space Research Organization (ISRO), India’s space agency, released this image on September 25, 2014, about a day after MOM arrived.

ISRO announced that MOM successfully entered into an orbit around planet Mars on September 24, 2014 at 7:30 a.m. India Standard Time (02:00 UTC; 20:00 EDT in the U.S. on September 23). MOM carries five instrument suite whose mission is to study the surface and atmosphere of Mars with a particular emphasis on measuring the methane in the Martian atmosphere: a key indicator of microbial life.

Image via Mars Orbiter Mission

Above is another beauty from MOM, acquired on September 28, 2014.

The Schiaparelli Basin (460 kilometers / 286 miles wide) is visible just below right, of dead center. To the left is the Meridiani Terra with Meridiani Planum where NASA’s Opportunity rover is still operating almost flawlessly after 10 years on Mars.

Oxia Palus is clearly visible as is Chryse Planitia where the Viking 1 lander touched down in July 1976 and also the Ares Vallis, where the Mars Pathfinder successfully landed in July 1997.

Syrtis Major is visible towards the right limb.

Bottom line: Here are some early images from India’s MOM spacecraft. One shows the limb of Mars, with its tenuous atmosphere above. The other shows the whole planet, with a dust storm visible in the planet’s northern hemisphere. Beautiful!

SOURCE:::: earth sky news

Natarajan