Plate Nº 55 · recorded October 10, 2026
Space & AstronomyReported finding
Mars Express Releases 4-Minute Aerial Tour of 460-km Schiaparelli Crater
ESA has released a 4-minute, 10-second aerial tour of Mars's 460-kilometer-wide Schiaparelli Crater, built from stereo images captured by the Mars Express orbiter.
By Priya Raman3 min read575 words
In brief
- Schiaparelli Crater measures 460 km across, ranking among the largest impact basins on Mars.
- ESA's flyover video runs 4 minutes and 10 seconds.
- The image mosaic is centered at 8°S, 17°E.
- The crater is named after Italian astronomer Giovanni Schiaparelli (1835–1910).
- Schiaparelli mapped Mars during the Great Opposition of 1877.
The European Space Agency (ESA) has released a 4-minute, 10-second aerial tour of Schiaparelli Crater, a 460-kilometer-wide Martian impact basin, assembled from stereo images captured by the long-running Mars Express orbiter.
ESA calls the new film "mesmerising" and has encouraged viewers to turn up the volume for the full audio guide experience. The flyover traces a virtual camera path across the crater's interior, where scientists believe water once pooled in a lake.
How did ESA build the flyover?
Engineers constructed the animation from data gathered by Mars Express's High Resolution Stereo Camera (HRSC), a German-built instrument flown on the spacecraft since 2003. The German Aerospace Center (DLR) operates the camera. Its Institute for Space Research in Berlin-Adlershof handled the systematic processing of the raw images.
The Working Group of Planetary Science and Remote Sensing at Freie Universität Berlin then stitched the cleaned data into the finished film.
Key technical details from ESA's processing notes:
- Mosaic centered at 8°S, 17°E
- 50 separate frames drawn for every second of footage
- Three-fold vertical exaggeration, applied to make subtle topography visible
- Synthetic haze added at a distance of 250 km to mask seams in the terrain model
By stacking image mosaics on top of a digital terrain model, the team turns flat orbital snapshots into a three-dimensional landscape researchers can fly through. Simulated clouds and haze conceal the edges of the reconstructed terrain.
Why does the crater look so shallow?
At 460 km across, Schiaparelli ranks among the largest impact basins on Mars. Yet its rim barely dips below the surrounding plains.
ESA researchers suggest sediment has partially filled the bowl over the last few billion years. Wind-blown dust, ancient lake deposits, and volcanic lava, working alone or in combination, may have lifted the original floor. The basin is old enough to predate most of Mars's better-known landmarks, giving wind and water ample time to remodel it.
Who was Schiaparelli?
The crater takes its name from Italian astronomer Giovanni Schiaparelli, who lived from 1835 to 1910. Although he studied Mercury and Venus, he is best remembered for his observations of the Red Planet.
During the "Great Opposition" of 1877, when Mars swung unusually close to Earth, Schiaparelli mapped the planet in detail. He reported several straight, dark lines crossing the red surface and called them "canali," the Italian word for natural water-filled channels.
What happened with the 'canali'?
A translation slip turned natural features into imagined engineering. Other astronomers, and later much of the general public, took "canali" to mean artificial canals. That misreading helped seed a belief, popular in the late 19th and early 20th centuries, that intelligent Martians had built irrigation and transportation routes across the planet.
Modern telescopes have since retired those claims. The lines were optical illusions created by the comparatively poor instruments of Schiaparelli's era. No water-filled channels cross Mars today. Scientists do, however, believe water was once present in this region, perhaps in the form of a lake.
Why does the crater appear in popular culture?
Schiaparelli Crater also plays a small role in popular culture. It serves as the final destination of astronaut Mark Watney in Andy Weir's novel "The Martian." That literary link has pushed the basin into popular imagination, sending curious readers searching Mars maps for Watney's real-world refuge.
ESA's new flyover brings it within reach.
via dlr.de (Original)
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Senior reporter covering industry trends and analytics at SciBeat.
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