Hugo Awards — for SF/F works, voted by members of annual World Science Fiction Convention

(2 nominations)

2024:

Journey Planet (with 15 other nominees) — fanzine — nomination -- pending

2021:

Journey Planet (with 13 other nominees) — fanzine — nomination

Analog Readers Poll — for stories, articles, and art published by Analog, polled by readers

(6 nominations)

2018:

“Alien Archaeology” (Analog May/Jun 2017) — fact article — 2nd place

2010:

“Futuropolis: How NASA Plans to Create a Permanent Presence on the Moon” (Analog Jun 2009) — fact article — 5th place

2010:

(Analog Jun 2009) — cover — 3rd place

2005:

(Analog Dec 2004) — cover — 2nd place (tie)

2004:

(Analog Nov 2003) — cover — 5th place

1999:

(Analog Oct 1998) — cover — 2nd place

Asimov's Reader Poll — for stories, poems, and art published by Asimov's, polled by readers

(13 nominations; 2 wins)

2008:

(Asimov's Dec 2007) — cover — 5th place

2005:

(Asimov's Apr/May 2004) — cover — 5th place

2005:

(Asimov's Mar 2004) — cover — 2nd place

2004:

— cover artist — 4th place

2003:

— cover artist — 3rd place

2003:

— interior artist — winner

2002:

— cover artist — winner

2002:

— interior artist — 9th place

2001:

— cover artist — 6th place

2000:

— cover artist — 6th place

1999:

— cover artist — 3rd place

1998:

— cover artist — 4th place

1993:

— cover artist — 4th place

Golden Duck Awards — for children's and YA SF books, juried

(3 nominations; 1 win)

2015:

Max Goes to the Space Station, A Science Adventure with Max the Dog (by Jeffrey Bennett, illustrated by MC) (Big Kid Science) — picture book — 1st place

2009:

Max Goes to Jupiter: A Science Adventure with Max the Dog (by Jeffrey Bennett, Nick Schneider, & Erica Ellingson, illustrated by MC) (Big Kid Science) — picture book — nomination

2008:

Quantum Prophecy: The Awakening (Philomel) — Hal Clement Award (young adult) — nomination

James White Award — for unpublished SF story, juried

2006, 2005, 2004, 2003, 2002, 2001, 2000