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...requirements; its implementation remains the gold standard today."}}</ref> of present-day planetary protection. ...arts of the spacecraft, so this was enough for a million-fold reduction of the originally low population).<ref name=JPL2011/> ...

{{Vetted|0}}{{About|the planet}} {{Short description|Seccond planet from the Sun in the Solar System}} ...

| caption = View of trailing hemisphere in natural color<ref name="caption" group="lower-alpha" | semimajor = {{val|237948|u=km}}<!-- Computed using the http://cfa-www.harvard.edu/iau/NatSats/NaturalSatellites.html µ value --><r ...

| citizenship = United States M.A., University of Notre Dame<br /> ...

...not yet detected). It excludes sites that are thought to be analogues only of conditions on early Mars, geological analogues, or analogues used only for ...s of [[Mount Erebus]], hot springs, or the sulfur rich mineral deposits of the Rio Tinto region in Spain. ...

...ts spaceflight mission|Mars Science Laboratory|its events on Mars|Timeline of Mars Science Laboratory}} ...= {{longitem|[[Self-portrait]] of ''Curiosity'' located at the foothill of [[Mount Sharp]] (October 6, 2015)|style= padding: 3px 0; line-height: 1.3em ...

...aption = Eugene Cernan aboard the Lunar Rover during the first EVA of Apollo 17 ...C. |isbn=0-16-050631-X |lccn=00061677 |id=NASA SP-2000-4029 |chapter=Table of Contents |chapterurl=https://history.nasa.gov/SP-4029/Apollo_00g_Table_of_C ...

| image_caption = Model of ''Schiaparelli'' lander at [[ESOC]] (2016) ...ame1 = Dust Characterization, Risk Assessment, and Environment Analyzer on the Martian Surface ...

...0}}[[File:Titan multi spectral overlay.jpg|250px|thumb|Multi-spectral view of Titan]] {{Life in the Universe}} ...