The knowledge graph

No fact exists in isolation.

Follow the relationships between observations, research and explanations. Every connection retains its source and its scope.

Chronological order

16 nodes shown in diagram · 17 of 17 relationships on this page. All page relationships are available in the text table. Additional nodes are listed below.

Connections in text

From	To	Evidence	Source
Mars	NASA's retained reference frames Mars exploration around four broad goals: deter	Documented claim	NASA
Mars	Within the supplied record, whether life currently exists or ever existed on Mar	Unknown	NASA
Mars	NASA reports that Martian volcanoes can be 10 to 100 times larger than Earth's a	Under investigation	NASA
Mars	NASA says large areas of magnetic materials indicate that Mars once had a magnet	Under investigation	NASA
Mars	NASA treats the ages and compositions of Martian rocks, especially rocks and min	Under investigation	NASA
Mars	NASA says Mars lacks an ozone layer and is expanding measurements of ultraviolet	Documented claim	NASA
Mars	NASA reports that Perseverance is caching rock samples for potential return to E	Documented claim	NASA
Mars	The retained record flags the rare-subsurface-water suggestion, superoxide asses	Under investigation	NASA
Mars	NASA's proposition that Martian life, if it evolved, likely involved a long-stan	Hypothesis	NASA
Mars	NASA reports that data from multiple Mars missions suggest liquid water just bel	Under investigation	NASA
Mars	NASA assesses that surface life is unlikely because superoxides break down organ	Under investigation	NASA
Mars	The possibility that subsurface Martian microbes could use chemical or geotherma	Hypothesis	NASA
Mars	NASA states that distinguishing life from non-life is difficult, that life elsew	Documented claim	NASA
Mars	NASA presents carbonate minerals formed by water-atmosphere reactions as possibl	Hypothesis	NASA
Mars	NASA describes the current Martian climate as involving seasonal carbon-dioxide	Documented claim	NASA
Mars	NASA states that one Martian year is 687 Earth days and says full-year and repea	Documented claim	NASA
Mars	Mars: NASA scientific reference	Documented claim	NASA