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See the first community of 3D-printed homes

This image, combining data from two instruments aboard NASA's Mars Global Surveyor, depicts an orbital view of the north polar region of Mars.

The ice-rich polar cap (the quasi-circular white area at center) is approximately 1,000 kilometers (621 miles) across. The white cap is riven with dark, spiral-shaped bands. These are deep troughs that are in shadow. They do not reflect sunlight as well or have more internal layers exposed. To the right of center, a large canyon, Chasma Boreale, almost bisects the ice cap. Chasma Boreale is about the length of the United States' famous Grand Canyon and up to 2 kilometers (1.2 miles) deep.

New findings from the shallow radar instrument aboard the Mars Reconnaissance Orbiter have revealed subsurface geology in this region, allowing scientists to reconstruct the formation process of the large chasm and spiral troughs.

The image synthesizes topographic data from Mars orbiter laser altimeter and images from the Mars orbiter camera.

Mars Global Surveyor, launched in 1996, operated longer at Mars than any other spacecraft in history. It went silent in November 2006, after gathering data at Mars for more than four times as long as originally planned.

Credit
NASA/JPL-Caltech/MSSS

Water found an inch beneath the Martian surface could help future astronauts

New Shepard takes off on Mission NS-10 - January 23, 2019

Watch Bezos' Blue Origin test its space tourism rocket

El turismo espacial está a punto de convertirse en realidad

New Shepard takes off on Mission NS-10 - January 23, 2019

Jeff Bezos's Blue Origin launches 12th test flight of space tourism rocket

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CNN10 - 12/11/19

The La Chapelle-aux-Saints Neandertal skull, with the external auditory exostoses ("swimmer's ear" growths) in the left canal indicated. CREDIT Erik Trinkaus/Washington University

Ancient finds

Graves reveal head cones seen in ancient Egyptian art really existed

Great Pacific Garbage Patch Hawaii California Ben Lecomte C2E _00000000.jpg

Meet the man who swam through the Great Pacific Garbage Patch

Archeologists unearth lost town from little-known ancient East African empire

You may be able to use FSA dollars on 23andMe's most comprehensive DNA kit

The TRAPPIST-1 star, an ultra-cool dwarf, has seven Earth-size planets orbiting it.

Up close with alien planets

Great Pacific Garbage Patch Hawaii California Ben Lecomte C2E_00003218.jpg

Meet the man who swam through the Great Pacific Garbage Patch