Massive, deep deposits of ice found on Mars

Massive, deep deposits of ice found on Mars

By Jake Parks, Astronomy Magazine

Researchers studying the eroded edges of ridges on Mars have found that substantial deposits of water ice exist just a few feet below martian surface, reaching over 300 feet thick in some areas.

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avalanche
The Mars Reconnaissance Orbiter captured this astonishing image showing an avalanche of dusty snow racing down the weakened side of an eroded slope on Mars. In this image, the snow is made up of dry ice (frozen carbon dioxide); however, researchers recently found similar slopes elsewhere on Mars with massive deposits of pure water ice. NASA/JPL-Caltech/University of Arizona
Despite the fact that Mars has an atmosphere just 1% as dense as Earth’s, the surface of the Red Planet still has to deal with plenty of weathering and erosion. In 2008, researchers even captured a full-scale avalanche on Mars as it plunged down a 2,300-foot slope into a valley. These types of geological events often expose the structures beneath the martian surface, revealing layers of rock, dry ice, and even water ice.

2020 Worldcon and 2019 NASFiC Bids

2020 Worldcon and 2019 NASFiC BidFiling Documents Online

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Kevin Standlee of Worldcon 76 announced they have posted filing documents accepted from two bids for events to be awarded by this year’s site selection voters.

The New Zealand bid proposes to hold the Worldcon in Wellington from August 12-16, 2020.

2020 Worldcon

New Zealand in 2020

The 2019 NASFiC bid proposes to hold the convention in Layton, Utah from July 4-7, 2019, simultaneously with the Westercon.

2019 NASFiC

Utah for 2019