Lander Debris Spotted on Mars

NASA's Mars Reconnaissance Orbiter has identifies debris from the European Space Agrency's ExoMars lander.  NASA noted:

This comparison of before-and-after images shows two spots that likely appeared in connection with the Oct. 19, 2016, Mars arrival of the European Space Agency's Schiaparelli test lander. The images are from the Context Camera on NASA's Mars Reconnaissance Orbiter.

Separately, NASA provided its own statement on the lost lander, pointing out the difficulty of landing on Mars:

ESA and its international team have added an important achievement to the exploration of Mars by putting the Trace Gas Orbiter into orbit around the Red Planet as a platform for science investigation and communication infrastructure...Landing a spacecraft on Mars is extremely challenging. We admire the initiative and development of the teams that worked on the Schiaparelli lander that was part of the ExoMars mission.

Image Credit: NASA/JPL-Caltech/MSSS

Mars Remains an Elusiveness Goal

What started as a hopeful week has ended badly for the European Space Agency (ESA).  It has lost contact with its ExoMars landing craft late into its six minutes descent. The assumption is that the craft crashed on the surface, another victim of the Martian allure. It also raises questions about a planned rover mission.

ESA' General Director Jan Wörner put his best spin on the situation:

Following yesterday's events we have an impressive orbiter around Mars ready for science and for relay support for the ExoMars rover mission in 2020...Schiaparelli's primary role was to test European landing technologies. Recording the data during the descent was part of that, and it is important we can learn what happened, in order to prepare for the future."

This is just one more reminder that none of this is easy. We have to accept a fair amount of risk with these distant missions, and the costs will get higher with manned missions. 

ExoMars Lander on it Way to Martian Surface

The European Space Agency's ExoMars mission just started its main mission - landing on Mars.  The lander craft left the spacecraft (Trace Gas Orbiter) yesterday and started its three-day descent.  The lander is the first step before a rover arrives in 2020. 

While Mars missions have been fickle over the years, the news so far is good.  Let's hope the traffic in Mars continues. 

You can follow the mission at this ESA site.

Studying Methane on Mars

One of the tasks of the ExoMars mission on its way to Mars is to study the methane in the Red Planet's atmosphere. Specifically, we want to know more about its source since we know life can create the gas. Of course, geology and other factors could also be at work.

A recent Discovery article highlighted one more culprit- comets. In a research paper, NASA's Marc Fries stated: 

Individual instances of  methane detection on Mars have been reported on five occasions via Earth-based telescopic observations, once by the ESA Mars Express mission over a two-month period, and eight times by the Mars Science Laboratory (MSL) rover. For all instances, Mars experienced a close interaction with  the  orbit  of   a  periodic  comet  within  16  days  previous  to  the  observation  of   methane.  Moreover, all methane  observations  correlate  with  interactions  between  Mars  and  seven  comets.  These  comets  have  all been previously identified as the likely sources of  meteor showers on Mars.

An interesting idea. And more scientific speculation about our solar system, similar to guesses about the source of the mysterious bright spots on Ceres (see below), that demonstrates how much we do not yet know about our own neighborhood.

A New Mars Mission Begins

A new mission to Mars started Monday with the launching of the ExoMars orbiter from Kazakstan. Designed to analyze the Martian atmosphere, the Trace Gas Orbiter and Schiaparelli probe, also called the Entry, Descent and landing demonstrator Module, will take about 7 months to reach Mars.  The ExoMars mission site highlights the goals of the mission:

• Search for signs of past and present life on Mars;
• Investigate how the water and geochemical environment varies; and
• Investigate Martian atmospheric trace gases and their sources.

While NASA was once a partner with the European Space Agency on this mission, the Russian Federal Space Agency is the new partner.  Part two involving a rover will launch sometime in 2018.

Both Europe and Russia have had some Mars SNAFUs in the recent past, so they know the dangers involved in these missions.  More observers, probes, and rovers should assist us in our understanding of Mars and its potential for visitors at some later point. 

Mars News: New Rover and More

Earlier this month, NASA announced plans to send a new rover to Mars as well as other initiatives designed to better understand Mars and prepare for a human mission.  Here is the key part of NASA's Mars announcement:  

On Dec. 4, NASA announced plans for a robust multi-year Mars program, including a new robotic science rover based on the Curiosity design set to launch in 2020. The planned portfolio includes the Curiosity and Opportunity rovers; two NASA spacecraft and contributions to one European spacecraft currently orbiting Mars; the 2013 launch of the Mars Atmosphere and Volatile EvolutioN (MAVEN) orbiter to study the Martian upper atmosphere; the Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) mission, which will take the first look into the deep interior of Mars; and participation in ESA's 2016 and 2018 ExoMars missions, including providing "Electra" telecommunication radios to ESA's 2016 mission and a critical element of the premier astrobiology instrument on the 2018 ExoMars rover. With InSight, there will be a total of seven NASA missions operating or being planned to study and explore our Earth-like neighbor. 

The 2020 mission will constitute another step toward being responsive to high-priority science goals and the president's challenge of sending humans to Mars orbit in the 2030s. 

What is interesting is that the "multi-year" plan discusses putting human in "orbit" around Mars in the 2030s.  I cannot imagine we would send humans all that way just to take pictures from above.  I think robotic missions can do that just as well.  We need humans on the surface. 

I was also surprised to see NASA contributions to ExoMars after the space agency pulled out of the mission earlier this year because of funding difficulties.  Maybe NASA found funds, since it now has plans to support ExoMars and build another Mars rover, though the ExoMars mission was to include an orbiter and rover.  Here is what NASA originally planned to do, which can still be found on its website here:

The ExoMars/Trace Gas Orbiter mission was a joint mission proposed by the European Space Agency (ESA) and NASA. This mission was proposed as the first in a series of joint missions to Mars for ESA and NASA. The two space agencies signed the Mars Exploration Joint Initiative agreement in 2009. Under the former proposed plan, NASA would have supplied the launch vehicle, four science instruments, and a communications system. This joint mission is not currently in NASA’s Mars Exploration Program plans. See information on ESA’s ExoMars mission: http://exploration.esa.int/.

 After NASA has walked away from ExoMars, our European friends reached out to Russia for support.  Under a new agreement, Roscosmos with provide the European Space Agency with two launch vehicles.  The Voice of Russia shared more:   

The Naples meeting was crucial for Russian space research as it was to approve the ExoMars mission deal between ESA and Russia’s Roskosmos space agency. The project has been approved and the deal will be sealed November 27.

Thus, Russia got another chance to explore Mars, five years after the Phobos mission failure. The first phase of the ExoMars mission is planned for 2016 and Russia’s Academy of Sciences has already begun research to design equipment for the Trace Gas Orbiter robotic orbit carrier which includes ACS spectrometers and the FREND neutron detector to study water distribution on the Mars surface. It also includes the EDL demonstrator module to exploit the entry descent and landing. Russia is also expected to contribute its Proton carrier rocket to the project.

The second ExoMars phase will be the launch of the Pasteur rover scheduled for 2018. Russia is providing a carrier rocket and a landing platform with research equipment as well as two gadgets for the rover.

Curiosity Landing Takes Place Next Month

NASA's Curiosity rover is scheduled to land on the surface of Mars on August 5th (at exactly 10:31 pm PT).  It will be nice to see more U.S. exploration of Mars, even if it is only a robotic mission.  Launched aboard an Atlas V on November 26, 2011, from the Cape Canaveral Air Force Station, the car-sized rover has been slowly making its way to the Red Planet these past seven and a half months.

NASA has put together a nice video called 7 Minutes of Terror describing the 7 minutes from the time the spacecraft carrying Curiosity hits the Martian atmosphere to the point of landing on the surface.  I would all it 8 months of terror given the complexity of the mission, but I am not writing the script.  Given the fact that the entire landing had to be perfectly choreographed long ago and will happen without any intervention from NASA once it starts, in some ways the mission is more amazing and complex than one including human intervention.  I away find these missions, be it landing on the surface of a planet to looping around the solar system for the perfect fly-by of a distant planet, to be a more spectacular demonstration of mankind's ability than the construction of the pyramids or Notre Dame. 

If all goes well, which is always a question when traveling to Mars (just ask the Russians), Curiosity will begin its two-year exploration of Gale Crater and the informally named Mount Sharp, described by NASA as follows:

Mount Sharp rises about 3 miles (5 kilometers) above the landing target on the crater floor, higher than Mount Rainier above Seattle, though broader and closer. It is not simply a rebound peak from the asteroid impact that excavated Gale Crater. A rebound peak may be at its core, but the mountain displays hundreds of flat-lying geological layers that may be read as chapters in a more complex history billions of years old.

Twice as tall as the sequence of colorful bands exposed in Arizona's Grand Canyon, the stack of layers in Mount Sharp results from changing environments in which layers are deposited, younger on top of older, eon after eon, and then partially eroded away.

A successful landing will be the start of a new period of exploration and hopefully offer new insights to the life of Mars and maybe even the likelihood of prior life on Mar.  One can also hope that this mission will renew interest in future trips to Mars, including a manned mission down the road.  It is worth recalling that Curiosity itself was planned before President Obama took office and quite possibly would not have been possible under this Administration.  Moreover, the United States has already pulled out of ExoMars, another Mars mission planned with our European friends, forcing them to look to Russia for a reliable partner. Let's hope we can get past our current Earth-bound problems and reach for the stars (or at least neighboring planets) again.

Note:  Mount Sharp (shown below in terms of size) pays tribute to geologist Robert P. Sharp (1911-2004), a founder of planetary science, influential teacher of many current leaders in the field, and team member for NASA's first few Mars missions. Sharp taught geology at the California Institute of Technology (Caltech), in Pasadena, from 1948 until past his retirement. Life magazine named him one of the 10 best college teachers in the nation.