Tag Archives: Terra Sirenum

THEMIS: Channel within a channel in Terra Sirenum

THEMIS Image of the Day, April 9, 2018. Today’s VIS image is located along the northern margin of Terra Sirenum. This unnamed channel contains a small channel within a larger channel. This would indicate two separate channel forming events. The … Continue reading

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HiRISE: Traipsing across Terra Sirenum

Traipsing across Terra Sirenum. Terra Sirenum is named after the Sirens who were birds with the heads of girls. In the Odyssey these girls captured passing seamen and killed them. Let’s hope future human exploration of this region is less … Continue reading

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HiRISE: A crater slope in Terra Sirenum mocks us

A crater slope in Terra Sirenum mocks us. Beautiful Mars series.

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THEMIS: Crater impact sequence

THEMIS Image of the Day, July 17, 2017.  Today’s VIS image shows unnamed craters in Terra Sirenum. The ejected debris from both impacts have overlapped. The debris from the smaller crater at bottom lies on top, showing that the impact … Continue reading

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THEMIS: Hills and plains of Terra Sirenum

THEMIS Image of the Day, July 14, 2017. Today’s false color image shows part of the plains and highlands of Terra Sirenum. The THEMIS camera contains 5 filters. The data from different filters can be combined in multiple ways to … Continue reading

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THEMIS: Newton Crater in false color

THEMIS Image of the Day, July 11, 2017. Today’s false color image shows part of Newton Crater in Terra Sirenum. The THEMIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a … Continue reading

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HiRISE: Light-toned mounds in Gorgonum Basin

Gorgonum Basin is one of several large basins within the Terra Sirenum region of Mars. Each basin has light-toned mounds, many of which contain clays. Scientists think that Terra Sirenum once had a large lake during an epoch called the … Continue reading

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THEMIS: Two small craters in Terra Sirenum

THEMIS Image of the Day, June 19, 2017. Do you see what I see? Shadows are just right to form googly eyes. (THEMIS Art #128). More THEMIS Images of the Day by geological topic.

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THEMIS: False color scan across Terra Sirenum

THEMIS Image of the Day, May 26, 2017. Today’s false color image shows part of the plains and craters of Terra Sirenum. This long scan (see full size image at link) was taken not long after local sunrise. The THEMIS … Continue reading

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THEMIS: False colors on Terra Sirenum plains

THEMIS Image of the Day, May 25, 2017. Today’s false color image shows part of the plains and craters in Terra Sirenum. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways … Continue reading

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