Ice on Mars
The remnants of a vast sheet of ice lies hidden under Martian rubble, revealed by a new and wonderfully detailed radar map of Mars’ mid-latitudes.
The remnants of a vast sheet of ice lies hidden under Martian rubble, revealed by a new and wonderfully detailed radar map of Mars’ mid-latitudes. "The icy leftovers have been found over a significant part of Deuteronilus Mensae, an area about halfway between the Martian equator and North Pole. The ice was mapped by the Italian Space Agency's Shallow Radar instrument on NASA's Mars Reconnaissance Orbiter. ‘It's definitely a record of a different climate period,’ says Dr Jeffrey Plaut of NASA's Jet Propulsion Laboratory. Today all that remains are thick ice piles buried at the foot of hillsides under rocky debris. ‘The debris protects them from subliming,’ says Plaut, referring to the process of solid water ice evaporating into the air without any intervening liquid phase. Plaut and his colleagues prepared their new ice map for presentation at this week's Lunar and Planetary Science Conference."
Science and the squishiness of the human mind. The joys of wearing whatever the hell you want, and so much more.
- Why can't we have a human-sized cat tree?
- What would happen if you got a spoonful of a neutron star?
- Why do we insist on dividing our wonderfully complex selves into boring little boxes
Progressive America would be half as big, but twice as populated as its conservative twin.
- America's two political tribes have consolidated into 'red' and 'blue' nations, with seemingly irreconcilable differences.
- Perhaps the best way to stop the infighting is to go for a divorce and give the two nations a country each
- Based on the UN's partition plan for Israel/Palestine, this proposal provides territorial contiguity and sea access to both 'red' and 'blue' America
A guide to making difficult conversations possible—and peaceful—in an increasingly polarized nation.
- How can we reach out to people on the other side of the divide? Get to know the other person as a human being before you get to know them as a set of tribal political beliefs, says Sarah Ruger. Don't launch straight into the difficult topics—connect on a more basic level first.
- To bond, use icebreakers backed by neuroscience and psychology: Share a meal, watch some comedy, see awe-inspiring art, go on a tough hike together—sharing tribulation helps break down some of the mental barriers we have between us. Then, get down to talking, putting your humanity before your ideology.
- The Charles Koch Foundation is committed to understanding what drives intolerance and the best ways to cure it. The foundation supports interdisciplinary research to overcome intolerance, new models for peaceful interactions, and experiments that can heal fractured communities. For more information, visit charleskochfoundation.org/courageous-collaborations.
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