More Information on AstroChallenge

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AstroChallenge 2019

AstroChallenge 2018

AstroChallenge 2017

AstroChallenge 2016

AstroChallenge 2015

AstroChallenge 2014

AstroChallenge 2013

AstroChallenge 2012

AstroChallenge 2011

AstroChallenge 2010

AstroChallenge 2009

Assorted past AstroChallenge papers