Tag Archives: northern lowlands

Did a giant impact create the northern lowlands, both moons, and enrich the mantle?

The origin and nature of Mars are mysterious. The planet has geologically distinct hemispheres with smooth lowlands in the north and cratered, high-elevation terrain in the south. The red planet also has two small oddly-shaped oblong moons and a composition that sets … Continue reading

Posted in Reports | Tagged , , , , | Comments Off

THEMIS: Dunes, dust devil tracks, and wind streaks on northern polar lowlands

THEMIS Image of the Day, June 21, 2017. Do you see what I see? Look out, a barrage of bullets is headed our way! (THEMIS Art #130) More THEMIS Images of the Day by geological topic.

Posted in Reports | Tagged , , , , , , , , , , , , , | Comments Off

Geomorphology of potential tsunami deposits

Planetary Geomorphology Image of the Month, December 1, 2016: Alexis Rodriguez (Planetary Science Institute). The Martian northern lowlands are thought to currently be extensively covered by an ice-rich deposit, interpreted by some researchers to be the residue of an ancient … Continue reading

Posted in Reports | Tagged , , | Comments Off

HiRISE: Expanded craters in northern lowlands

This image shows many small craters over a larger degraded one in the northern lowlands. These small craters are smoother and shallower than their counterparts closer to the equator. Scientists believe this difference is a result of impact into a … Continue reading

Posted in Reports | Tagged , , , , , , , , | Comments Off

Mega-tsunamis likely altered Mars landscape

The geologic shape of what were once shorelines through Mars’ northern plains convinces scientists that two large meteorites – hitting the planet millions of years apart – triggered a pair of mega-tsunamis. These gigantic waves forever scarred the Martian landscape … Continue reading

Posted in Reports | Tagged , , , | Comments Off

HiRISE: Highlands to lowlands in far-west Arabia

From the highlands to the lowlands in the far western Arabia region. Beautiful Mars series.

Posted in Reports | Tagged , , , , , , , , , , | Comments Off

HiRISE: Cratered cones in Acidalia Planitia

This image shows part of a broad plain covered with cratered cones and domes in the Northern lowlands of Mars. These cones are typically lighter and smoother than their surroundings, and also have different colors. One possible explanation for these … Continue reading

Posted in Reports | Tagged , , , , , , , , , , | Comments Off

THEMIS: Crater dunes

THEMIS Image of the Day, April 18, 2016. Today’s VIS image shows a sand sheet with surface dune forms located on the floor of an unnamed crater in Vastitas Borealis. More THEMIS Images of the Day by geological topic.

Posted in Reports | Tagged , , , , , | Comments Off

HiRISE: Fresh crater on the northern plains

A fresh crater on the northern plains — Geologically speaking, of course. Beautiful Mars series.

Posted in Reports | Tagged , , , , , , , , , | Comments Off

THEMIS: Lonar Crater

THEMIS Image of the Day, February 11, 2016. This VIS image shows Lonar Crater. This is a fairly pristine crater, with a steep slope on the interior of the rim and little to no deposition of material on the floor. … Continue reading

Posted in Reports | Tagged , , , , , , , , , , | Comments Off