Results tagged “Mars”

The existence of liquid water within an oxidized environment on early Mars has been inferred by the Mn-rich rocks found during recent explorations on Mars. The oxidized atmosphere implied by the Mn-rich rocks would basically be comprised of CO2 and H2O without any reduced greenhouse gases such as H2 and CH4.

Mars2020 And Mars Sample Return

Mars Sample Return consists of three separate missions, the first of which is the Mars2020 rover which will land at Jezero crater on February 18, 2021. We describe here our remote sensing study of a particular unit that outcrops in Jezero crater that is likely to be part of the return sample suite.

Water on Mars, in the form of brines, may not be as widespread as previously thought, according to a new study by researchers at the Arkansas Center for Space and Planetary Sciences.

Recently, Nadir and Occultation for Mars Discovery (NOMAD) ultraviolet and visible spectrometer instrument on board the European Space Agency's ExoMars Trace Gas Orbiter (TGO) simultaneously measured the limb emission intensities for both [OI] 2972 and 5577 Å (green) emissions in the dayside of Martian upper atmosphere.

The most habitable region for life on Mars would have been up to several miles below its surface, likely due to subsurface melting of thick ice sheets fueled by geothermal heat, a Rutgers-led study concludes.

Solar Proton Events (SPEs) can cause abrupt and significant enhancements to the Martian surface radiation dose.

Special Regions on Mars are defined as environments able to host liquid water that meets certain temperature and water activity requirements that allow known terrestrial organisms to replicate, and therefore could be habitable.

Report by the NASA Mars Architecture Strategy Working Group (MASWG), November 2020

How Water Fled Mars

Mars once had oceans but is now bone-dry, leaving many to wonder how the water was lost. University of Arizona researchers have discovered a surprisingly large amount of water in the upper atmosphere of Mars, where it is rapidly destroyed, explaining part of this Martian mystery.

Volcanic activity on Mars peaked during the Noachian and Hesperian periods but has continued since then in isolated locales. Elysium Planitia hosts numerous young, fissure-fed flood lavas with ages ranging from approximately 500 to 2.5 million years (Ma).

Mars Sample Return (MSR) is a highly complex and ambitious program of national importance. As noted by the MSR Independent Review Board (IRB), it is one of the most technically difficult and operationally demanding robotic space missions ever undertaken.

There's a long-standing question in planetary science about the origin of water on Earth, Mars and other large bodies such as the moon.

Humankind's next giant step may be onto Mars. But before those missions can begin, scientists need to make scores of breakthrough advances, including learning how to grow crops on the red planet.

The agency's newest rover will use the first ground-penetrating radar instrument on the Martian surface to help search for signs of past microbial life.

Data from Martian meteorites suggest the planet may have two hydrogen reservoirs beneath its surface, according to a recent study by NASA's Astromaterials Exploration Research and Science (ARES) Division and a team of planetary scientists. The study, published in the journal Nature Geoscience, could shed light on how Mars formed and evolved.

The detection of liquid water by the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) at the base of the south polar layered deposits in Ultimi Scopuli has reinvigorated the debate about the origin and stability of liquid water under present-day Martian conditions.

ESA's Mars Express spacecraft has discovered several ponds of liquid water buried under the ice in the south polar region of Mars.

Could Life Exist Deep Underground On Mars?

Recent science missions and results are bringing the search for life closer to home, and scientists at the Center for Astrophysics | Harvard & Smithsonian (CfA) and the Florida Institute of Technology (FIT) may have figured out how to determine whether life is--or was--lurking deep beneath the surface of Mars, the Moon, and other rocky objects in the universe.

NASA's Mars 2020 Perseverance rover has a challenging road ahead: After having to make it through the harrowing entry, descent, and landing phase of the mission on Feb. 18, 2021, it will begin searching for traces of microscopic life from billions of years back.

In a little more than a decade, samples of rover-scooped Martian soil will rocket to Earth.

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