OrbitalHub

Wikipedia dixit:

“A Mars sample return mission (MSR) would be a spaceflight mission to collect rock and dust samples from Mars and to return them to Earth. Sample return would be a very powerful type of exploration, because analysis is freed from the time, budget, and space constraints of spacecraft sensors.

Since it is currently unknown whether life forms exist on Mars, the mission could potentially transfer viable organisms resulting in back contamination—the introduction of extraterrestrial organisms into Earth’s biosphere. The scientific consensus is that the potential for large-scale effects, either through pathogenesis or ecological disruption, is extremely small. Nevertheless, returned samples from Mars will be treated as potentially biohazardous until scientists can determine that the returned samples are safe. The goal is to reduce the probability of release of a Mars particle to less than one in a million. In addition, the proposed NASA Mars Sample Return mission will not be approved by NASA until the National Environmental Policy Act (NEPA) process has been completed. The NEPA process would require a public review of all potential impacts that could result from MSR, including worst case back contamination scenarios. It is likely that a formal Environmental Impact Statement (EIS) would have to be prepared. Furthermore, under the terms of Article VII of the Outer Space Treaty and probably various other legal frameworks, were a release of organisms to occur, the releasing nation or nations would be liable for any resultant damages.

Part of the sample return mission would be to prevent contact between the Martian environment and the exterior of the sample container. In order to eliminate the risk of parachute failure, the current plan is to use the thermal protection system to cushion the capsule upon impact (at terminal velocity). The sample container will be designed to withstand the force of the impact. To receive the returned samples, NASA proposed a specially designed Biosafety Level 4 containment facility, the Mars Sample Return Receiving facility (MSRRF). Not knowing what properties (e.g., size) any Martian organisms might exhibit is a complication in design of such a facility.”

Credits Video: NASA Jet Propulsion Laboratory

NASA dixit:

“NASA’s Curiosity rover has found new evidence preserved in rocks on Mars that suggests the planet could have supported ancient life, as well as new evidence in the Martian atmosphere that relates to the search for current life on the Red Planet. While not necessarily evidence of life itself, these findings are a good sign for future missions exploring the planet’s surface and subsurface.

The findings include “tough” organic molecules in three-billion-year-old sedimentary rocks near the surface, as well as seasonal variations in the levels of methane in the atmosphere. Organic molecules contain carbon and hydrogen, and also may include oxygen, nitrogen and other elements. While commonly associated with life, organic molecules also can be created by non-biological processes and are not necessarily indicators of life.

Although the surface of Mars is inhospitable today, there is clear evidence that in the distant past, the Martian climate allowed liquid water – an essential ingredient for life as we know it – to pool at the surface. Data from Curiosity reveal that billions of years ago, a water lake inside Gale Crater held all the ingredients necessary for life, including chemical building blocks and energy sources. “

Credits Video: NASA

Wikipedia dixit:

“The ExoMars rover is a planned robotic Mars rover, part of the international ExoMars programme led by the European Space Agency and the Russian Roscosmos State Corporation.

The rover is an autonomous six-wheeled terrain vehicle once designed to weigh up to 295 kg (650 lb), approximately 60% more than NASA’s 2004 Mars Exploration Rovers Spirit and Opportunity, but about one third that of NASA’s Curiosity rover launched in 2011.

In February 2012, following NASA’s withdrawal, the ESA went back to previous designs for a smaller rover, once calculated to be 207 kg (456 lb). Instrumentation will consist of the exobiology laboratory suite, known as Pasteur analytical laboratory to look for signs of biomolecules or biosignatures from past life. Among other instruments, the rover will also carry a 2-metre (6 ft 7 in) sub-surface drill to pull up samples for its on-board laboratory.

The lead builder of the ExoMars rover, the British division of Airbus Defence and Space, began procuring critical components in March 2014. In December 2014, ESA member states approved the funding for the rover, to be sent on the second launch in 2018, but insufficient funds had already started to threaten a launch delay until 2020. The wheels and suspension system are paid by the Canadian Space Agency and are being manufactured by MDA Corporation in Canada.

By March 2013, the spacecraft was scheduled to launch in 2018 with a Mars landing in early 2019. However, delays in European and Russian industrial activities and deliveries of scientific payloads, forced the launch to be pushed back. In May 2016, ESA announced that the mission had been moved to the next available launch window of July 2020. An ESA ministerial meeting in December 2016 will consider mission issues including €300 million in ExoMars funding and lessons learned from the ExoMars 2016 Schiaparelli mission. One concern is that the Schiaparelli module crashed during its Mars atmospheric entry, and this landing system is being produced in near duplication for the ExoMars lander.”

Credits Video: ESA/NASA Goddard

ESA dixit:

“This movie, based on images taken by ESA’s Mars Express, showcases the 102 km wide Neukum Crater in the southern hemisphere of Mars. The crater is named for the German physicist and planetary scientist, Gerhard Neukum, one of the founders of ESA’s Mars Express mission who inspired and led the development of the high-resolution stereo camera on Mars Express.

This complex impact crater has a diverse geologic history, as indicated by various features on the crater rim and floor. Particularly striking are the dark dune fields, likely made up of volcanic material blown in and shaped by strong winds. The crater’s shallow interior has been infilled by sediments over its history. It is also marked with two irregular depressions that may be a sign of a weaker material that has since eroded away, leaving behind some islands of more resistant material.

Over time the crater rim has undergone varying degrees of collapse, with landslides and slumped material visible in the crater walls. Many smaller craters have also overprinted the rim and pockmarked the interior since Neukum Crater was formed, highlighting its long history. Neukum Crater is situated in Noachis Terra, one of the oldest known regions on Mars, dating back to at least 3.9 billion years.”

Credits Animation: ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO

Credits Music: Coldnoise, CC BY-SA 4.0 and Adrian Neesemann

NASA dixit:

“The Mars Helicopter, a small, autonomous rotorcraft, will travel with the agency’s Mars 2020 rover mission, currently scheduled to launch in July 2020, to demonstrate the viability and potential of heavier-than-air vehicles on the Red Planet.

Started in August 2013 as a technology development project at NASA’s Jet Propulsion Laboratory, the Mars Helicopter had to prove that big things could come in small packages. The result of the team’s four years of design, testing and redesign weighs in at little under four pounds (1.8 kilograms). Its fuselage is about the size of a softball, and its twin, counter-rotating blades will bite into the thin Martian atmosphere at almost 3,000 rpm — about 10 times the rate of a helicopter on Earth.

The helicopter also contains built-in capabilities needed for operation at Mars, including solar cells to charge its lithium-ion batteries, and a heating mechanism to keep it warm through the cold Martian nights. But before the helicopter can fly at Mars it has to get there. It will do so attached to the belly pan of the Mars 2020 rover.

Once the rover is on the planet’s surface, a suitable location will be found to deploy the helicopter down from the vehicle and place it onto the ground. The rover then will be driven away from the helicopter to a safe distance from which it will relay commands. After its batteries are charged and a myriad of tests are performed, controllers on Earth will command the Mars Helicopter to take its first autonomous flight into history.”

Video Credit: NASA’s Jet Propulsion Laboratory

Wikipedia dixit:

“InSight is a robotic lander designed to study the interior of the planet Mars. The mission launched on 5 May 2018 […] and is expected to land on the surface of Mars (landing site: Elysium Planitia) on 26 November 2018, where it will deploy a seismometer and burrow a heat probe. It will also perform a radio science experiment to study the internal structure of Mars.

The lander was manufactured by Lockheed Martin Space Systems and was originally planned for launch in March 2016. Due to the failure of its SEIS instrument prior to launch, NASA announced in December 2015 that the mission had been postponed, and in March 2016, the launch was rescheduled for 5 May 2018, when it launched successfully. The name is a backronym for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport.

InSight’s objective is to place a stationary lander equipped with a seismometer and heat transfer probe on the surface of Mars to study the planet’s early geological evolution. This could bring new understanding of the Solar System’s terrestrial planets — Mercury, Venus, Earth, Mars — and the Earth’s Moon. By reusing technology from the Mars Phoenix lander, which successfully landed on Mars in 2008, it is expected that the cost and risk will be reduced.

Following a persistent vacuum failure in the main scientific instrument, the launch window was missed, and the InSight spacecraft was returned to Lockheed Martin’s facility in Denver, Colorado, for storage. NASA officials decided in March 2016 to spend an estimated US$150 million to delay launching InSight to May 2018. This would allow time for the seismometer issue to be fixed, although it increased the cost from the previous US$675 million to a total of $830 million.

InSight will place a single stationary lander on Mars to study its deep interior and address a fundamental issue of planetary and Solar System science: understanding the processes that shaped the rocky planets of the inner Solar System (including Earth) more than four billion years ago.

InSight’s primary objective is to study the earliest evolutionary history of the processes that shaped Mars. By studying the size, thickness, density and overall structure of Mars’ core, mantle and crust, as well as the rate at which heat escapes from the planet’s interior, InSight will provide a glimpse into the evolutionary processes of all of the rocky planets in the inner Solar System. The rocky inner planets share a common ancestry that begins with a process called accretion. As the body increases in size, its interior heats up and evolves to become a terrestrial planet, containing a core, mantle and crust. Despite this common ancestry, each of the terrestrial planets is later shaped and molded through a poorly understood process called differentiation. InSight mission’s goal is to improve the understanding of this process and, by extension, terrestrial evolution, by measuring the planetary building blocks shaped by this differentiation: a terrestrial planet’s core, mantle and crust.

The mission will determine if there is any seismic activity, measure the amount of heat flow from the interior, estimate the size of Mars’ core and whether the core is liquid or solid. This data would be the first of its kind for Mars. It is also expected that frequent meteor airbursts (10–200 detectable events per year for InSight) will provide additional seismo-acoustic signals to probe the interior of Mars. The mission’s secondary objective is to conduct an in-depth study of geophysics, tectonic activity and the effect of meteorite impacts on Mars, which could provide knowledge about such processes on Earth. Measurements of crust thickness, mantle viscosity, core radius and density, and seismic activity should result in an accuracy increase of 3X to 10X compared with current data.

In terms of fundamental processes shaping planetary formation, it is thought that Mars contains the most in-depth and accurate historical record, because it is big enough to have undergone the earliest accretion and internal heating processes that shaped the terrestrial planets, but is small enough to have retained signs of those processes.”

Video Credit: ULA