THE LAST TRANSMISSION / EXPLORATION MAP 004

Enter the Mars system.

A volcano that dwarfs mountains. A continent-spanning fracture. A delta that once carried water. Approach the surface, then follow the evidence.

CHANGE SCALE / MARS SURFACE EXPLORER

Descend to the surface.

Drive Perseverance across an expansive, illustrated Mars landscape, then look around real panoramic photographs from the landing site, delta, and crater rim. A rock is a record. What would you investigate?

Enter the rover explorer
Detail from a recorded enhanced-color panorama of Jezero’s delta landscape, NASA/JPL-Caltech/ASU/MSSS

DESTINATION 01 / MARS SYSTEM

Mars

The planet that kept its scars

What can the surface tell us about the interior?

Mars preserves volcanoes, canyons, impact scars, and old water-shaped landscapes. Orbital gravity and seismic measurements reach below that surface, but the global Viking image map in this scene cannot show subsurface heat or current activity.

DESTINATION 02 / MARS SYSTEM

Olympus Mons

The great shield volcano

How does a volcano grow to such a scale?

Olympus Mons is the largest known volcano in the solar system. Its vast shield records long-lived lava flows. The image below is a Viking Orbiter mosaic; the globe view shows the region, while the closer spacecraft view carries the detail.

Viking Orbiter mosaic of Olympus Mons, NASA/JPL-Caltech/USGS
Viking Orbiter mosaic of Olympus Mons, NASA/JPL-Caltech/USGS. Original NASA context ↗

DESTINATION 03 / MARS SYSTEM

Valles Marineris

A fracture across a world

What opened the largest canyon system on Mars?

The immense troughs of Valles Marineris are commonly linked to crustal stretching and the rise of the neighboring Tharsis region, then modified by collapse and erosion. The close view below is a spacecraft mosaic; its sharp relief should not be inferred from the lower-resolution globe texture.

Orbital color mosaic of Valles Marineris, NASA/JPL-Caltech/USGS
Orbital color mosaic of Valles Marineris, NASA/JPL-Caltech/USGS. Original NASA context ↗

DESTINATION 04 / MARS SYSTEM

Jezero Crater

A preserved river delta

What can sediment remember about ancient water?

Perseverance landed in Jezero to investigate an ancient lake basin and river delta. Layers, minerals, and collected samples can test environmental history; they are not by themselves evidence that life once existed there. The color image below uses enhanced orbital data to expose the delta.

Enhanced-color orbital view of the Jezero delta, NASA/JPL-Caltech/ASU
Enhanced-color orbital view of the Jezero delta, NASA/JPL-Caltech/ASU. Original NASA context ↗

DESTINATION 05 / MARS SYSTEM

Phobos

The close, grooved moon

What can a small moon reveal about impact history?

Phobos is the larger and closer of Mars’s two moons. Its Stickney crater and grooves invite competing interpretations of impacts, structural stress, and surface movement. The moon is deliberately enlarged here so that it can be explored.

DESTINATION 06 / MARS SYSTEM

Deimos

The quiet outer moon

What is hiding beneath the dust?

Deimos is smaller and farther out than Phobos. Its surface looks smoother in many images because loose material partially fills craters. Its origin remains an open problem, and the pale map here is a compiled resource texture, not a current spacecraft view.

ABOUT THIS MAP

The globe uses a Viking-era image map processed by USGS and supplied by NASA/JPL-Caltech. Surface destination markers indicate approximate geographic regions; the map resolution cannot show rover-scale terrain. Separate NASA orbital views in the files give closer detail. The globe is a color image, not a MOLA elevation model. Moon sizes and positions are enlarged and arranged for navigation, not to scale or a live orbital simulation.

Self-hosted planetary textures: Mars, NASA/JPL-Caltech and USGS; Phobos, NASA/JPL/Solar System Simulator; Deimos, NASA/JPL/Solar System Simulator. The close views are credited beside each image.

INTERACTIVE EXPEDITION / PHOBOS

A small moon.
An enormous sky.

Turn the moon, stand beneath Mars, then toss a rock in a world that barely holds it down.

Explore Phobos →
Conceptual illustration of a spacecraft approaching Phobos above Mars

FROM THE ILLUSTRATED ARCHIVE

Follow this thread further.

SCIENTIFIC INQUIRY / APPLIED HERE

Explore all twelve principles
06 Uncertainty and limits

A map records some regions more closely than others.

Surface views combine measurements with different resolution and coverage. A broad view can locate terrain without establishing every local detail. Follow the associated investigations when a claim depends on changes, composition, or conditions beyond the visible map.

Ask yourself How large are the uncertainties, and which claim would go beyond the data?

THE SIGNAL CONTINUES

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