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Possible Signs of Ancient Drying in Martian Rock

A grid of small polygons on the Martian rock surface near the right edge of this view may have originated as cracks in drying mud more than 3 billion years ago. 7 more words

Jonathan Offt

Possible Signs of Ancient Drying in Martian Rock

A grid of small polygons on the Martian rock surface near the right edge of this view may have originated as cracks in drying mud more than 3 billion years ago. 7 more words

Jonathan Offt

NASA Astronaut Shane Kimbrough on Jan. 13 Spacewalk

Expedition 50 Commander Shane Kimbrough of NASA at work outside the International Space Station on Jan. 13, 2017, in a photo taken by fellow spacewalker Thomas Pesquet of ESA. 31 more words

Jonathan Offt

Thomas Roberts (1805-1871) Missionary and Artist and Mary Roberts (1808-1890) Matron, Sydney Female Refuge

On November 10, 1852, Thomas Roberts, a portrait painter,[1] and his wife Mary (nee Griffiths) arrived in Melbourne with seven of their children on the… 4,311 more words

Philanthropy

Crescent Jupiter with the Great Red Spot

This image of a crescent Jupiter and the iconic Great Red Spot was created by a citizen scientist (Roman Tkachenko) using data from Juno’s JunoCam instrument. 7 more words

Jonathan Offt

Well-Preserved Impact Ejecta on Mars

This image of a well-preserved unnamed elliptical crater in Terra Sabaea, is illustrative of the complexity of ejecta deposits forming as a by-product of the impact process that shapes much of the surface of Mars. 7 more words

Jonathan Offt

Well-Preserved Impact Ejecta on Mars

This image of a well-preserved unnamed elliptical crater in Terra Sabaea, is illustrative of the complexity of ejecta deposits forming as a by-product of the impact process that shapes much of the surface of Mars. 7 more words

Jonathan Offt