The 2018 Jim Baen Memorial Short Story Award is open until February 1, 2018.
Free to enter. Submit a short story of up to 8,000 words, that shows the near future of manned space exploration.
First prize includes publication on their website and payment of .07 per word, an engraved award, free entry into the 2018 International Space Development Conference, a year’s membership of the National Space Society, books and Space Society merchandise.
More here.