Eons of erosion on Mars have formed the sweeping layers seen in this sedimentary rock located in Danielson crater,
an impact crater located in the Arabia Terra region of the Red Planet.⁣
⁣
This stereo image taken by our Mars Reconnaissance Orbiter allows scientists to measure the thicknesses of these sedimentary layers.
The layer thicknesses and how they vary through time can provide some insight into the processes,
possibly linked to ancient climate,
that deposited the layers so long ago.⁣
⁣
Image Credit:
NASA/JPL-Caltech/University of Arizona⁣
⁣ #Mars #rocks #nasa #space #solarsystem

“Humanity glides by beneath us as we go screaming through the sky.”
Astronaut Nick Hague captured this image from one of the windows of the International Space Station (@ISS)
as the orbiting laboratory moved around the Earth at ~5 miles (~8 kilometers)
a second.
He is now reaching the tail-end of his 200-day mission,
with less than a month left until he returns to Earth.

Image Credit:
Nick Hague /
NASA #NASA #Space #Earth

"The living history of the Earth jumps out at you through buckles,
folds,
giant fans,"
wrote astronaut Nick Hague (@astrohague)
about his photo of the "Eye of the Sahara"
from the International Space Station (@ISS).
Scroll through for more images of this striking geologic feature,
the Richat Structure of Mauritania,
captured by astronauts on the station and @NASAEarth satellites.
⁣
⁣
Located in the Sahara Desert,
it measures 28 miles (45 kilometers)
across and is made up of igneous and sedimentary rocks.
It's thought to be caused by an uplifted dome that has been eroded to expose the originally flat rock layers.⁣
⁣ #mauritania #sahara #desert #richatstructure #geology #earthart #spaceart⁣
⁣
1)
Photograph taken from the International Space Station,
Sept.
2019.
The image has been enhanced to improve contrast.

Image Credit:
NASA⁣
2)
ASTER Mission image from Oct.
7,
2000.
Image Credit:
NASA/METI/AIST/Japan Space Systems and U.S./Japan ASTER Science Team⁣
3)
Landsat satellite image draped over an elevation model produced by the Shuttle Radar Topography Mission (SRTM);
February 2000 (SRTM),
January 13,
1987 (Landsat).
Image Credit:
SRTM Team NASA/JPL/NIMA⁣
4)
Landsat-7 satellite image from Jan.
11,
2001.
Image Credit:
NASA/U.S.
Geological Survey/Landsat-7/Goddard Space Flight Center⁣
5)
Photograph taken from the International Space Station,
Dec.
17,
2011.
Image Credit:
NASA