Editing Discovery Program (section)

===Mars focused===
[[File:PIA11858 Starburst Spider.jpg|thumb|Mars Geyser Hopper would investigate 'spider' features on Mars, as imaged by an orbiter. Image size: {{convert|1|km|mi|abbr=on}} across.]]
* '''Pascal''', a Mars climate network mission.<ref>{{cite journal |bibcode=2000came.work..135H |last1=Haberle |first1=R. M. |last2=Catling |first2=D. C. |last3=Chassefiere |first3=E. |last4=Forget |first4=F. |last5=Hourdin |first5=F. |last6=Leovy |first6=C. B. |last7=Magalhaes |first7=J. |last8=Mihalov |first8=J. |last9=Pommereau |first9=J. P. | last10=Murphy | first10=J. R. |title=The Pascal Discovery Mission: A Mars Climate Network Mission |journal=Astrophysics Data System |pages=135 |publisher=Harvard-Smithsonian Centre for Astrophysics |year=2000 }}</ref>
* '''MUADEE''' (Mars Upper Atmosphere Dynamics, Energetics, and Evolution), an orbiter mission designed to study Mars's upper atmosphere.<ref name="delft">{{cite web |url=https://discover.tudelft.nl/recordview/view?recordId=Elsevier%3Aelsevier%3ACXT0348A%3A00945765%3A003500S1%3A9400203X |title=MUADEE: A Discovery-class mission for exploration of the upper atmosphere of Mars |publisher=Delft University of Technology |location=Netherlands |access-date=February 28, 2014 |url-status=dead |archive-url=https://web.archive.org/web/20150204180416/https://discover.tudelft.nl/recordview/view?recordId=Elsevier:elsevier:CXT0348A:00945765:003500S1:9400203X |archive-date=February 4, 2015}}</ref> (similar to [[MAVEN]] of the Mars Scout program)
* '''PCROSS''', similar to [[LCROSS]], but directed towards Mars's moon [[Phobos (moon)|Phobos]].<ref>{{cite journal |bibcode=2012LPICo1679.4180C |title=PCROSS – Phobos Close Rendezvous Observation Sensing Satellite |last1=Colaprete |first1=A. |last2=Bellerose |first2=J. |last3=Andrews |first3=D. |journal=Astrophysics Data System |volume=1679 |pages=4180 |publisher=Harvard-Smithsonian Centre for Astrophysics |year=2012 }}</ref>
* '''Merlin''', a mission that would place a lander on Mars's moon [[Deimos (moon)|Deimos]].<ref>{{cite web |url=http://multimedia.seti.org/PhD2011/abstracts/PhD2-11-014.pdf |title=Merlin : Mars-Moon Exploration, Reconnaissance and Landed Investigation |first1=A. S. |last1=Rivkin |first2=N. L. |last2=Chabot |first3=S. L. |last3=Murchie |first4=D. |last4=Eng |first5=Y. |last5=Guo |first6=R. E. |last6=Arvidson |first7=A. |last7=Trebi-Ollennu |first8=F. P. |last8=Seelos |publisher=SETI |archive-url=https://web.archive.org/web/20140228132654/http://multimedia.seti.org/PhD2011/abstracts/PhD2-11-014.pdf |archive-date=February 28, 2014 |url-status=dead}}</ref>
* '''Mars Moons Multiple Landings Mission''' (M4), would conduct multiple landings on Phobos and Deimos.<ref name="lpi_4363">{{cite web |url=http://www.lpi.usra.edu/meetings/marsconcepts2012/pdf/4363.pdf |title=Phobos and Deimos: Robotic Exploration in Advance of Humans to mars Orbit |first1=Pascal |last1=Lee |first2=Christopher |last2=Hoftun |first3=Kira |last3=Lorbe |work=Concepts and Approaches for Mars Exploration (2012) |publisher=Lunar and Planetary Institute |archive-url=https://web.archive.org/web/20140301114741/http://www.lpi.usra.edu/meetings/marsconcepts2012/pdf/4363.pdf |archive-date=March 1, 2014 |url-status=live}}</ref>
* '''Hall''', a Phobos and Deimos sample return mission.<ref name="lpi_1633">{{cite web |url=http://www.lpi.usra.edu/meetings/lpsc2010/pdf/1633.pdf |title=HALL: A Phobos and Deimos Sample and Return Mission |first1=Pascal |last1=Lee |first2=Joseph |last2=Veverka |first3=Julie |last3=Bellerose |first4=Marc |last4=Boucher |first5=John |last5=Boynton |first6=Stephen |last6=Braham |first7=Ralf |last7=Gellert |first8=Alan |last8=Hildebrand |first9=David |last9=Manzella | first10=Greg | last10=Mungas |first11=Steven |last11=Oleson |first12=Robert |last12=Richards |first13=Peter C. |last13=Thomas |first14=Michael D. |last14=West |work=41st Lunar and Planetary Science Conference (2010) |publisher=Lunar and Planetary Institute |archive-url=https://web.archive.org/web/20140227183425/http://www.lpi.usra.edu/meetings/lpsc2010/pdf/1633.pdf |archive-date=February 27, 2014 |url-status=live}}</ref>
* '''Aladdin''', a Phobos and Deimos sample return mission.<ref>{{cite journal |bibcode=1997LPI....28.1111P |title=ALADDIN – Phobos-Deimos sample return |last1=Pieters |first1=C. |last2=Murchie |first2=S. |last3=Cheng |first3=A. |last4=Zolensky |first4=M. |last5=Schultz |first5=P. |last6=Clark |first6=B. |last7=Thomas |first7=P. |last8=Calvin |first8=W. |last9=McSween |first9=H. | last10=Yeomans | first10=D. |last11=McKay |first11=D. |last12=Clemett |first12=S. |last13=Gold |first13=R. |journal=Astrophysics Data System |pages=1111 |publisher=Harvard-Smithsonian Centre for Astrophysics |year=1997 }}</ref> It was a finalist in the 1999 Discovery selection, with a planned launch in 2001 and return of the samples by 2006.<ref name="sr">{{cite web |url=http://www.lpi.usra.edu/meetings/LPSC99/pdf/1155.pdf |title=ALADDIN: Exploration and Sample Return of Phobos and Deimos |first1=C. |last1=Pieters |first2=W. |last2=Calvin |first3=A. |last3=Cheng |first4=B. |last4=Clark |first5=S. |last5=Clemett |first6=R. |last6=Gold |first7=D. |last7=McKay |first8=S. |last8=Murchie |first9=J. |last9=Mustard | first10=J. | last10=Papike |first11=P. |last11=Schultz |first12=P. |last12=Thomas |first13=A. |last13=Tuzzolino |first14=D. |last14=Yeomans |first15=C. |last15=Yoder |first16=M. |last16=Zolensky |first17=O. |last17=Barnouin-Jha |first18=D. |last18=Domingue |work=Lunar and Planetary Science |publisher=Lunar and Planetary Institute |archive-url=https://web.archive.org/web/20040905173338/http://www.lpi.usra.edu/meetings/LPSC99/pdf/1155.pdf |archive-date=September 5, 2004 |url-status=live}}</ref> Sample collection was intended to work by sending projectiles into the moons, then collecting the ejecta by means of a collector spacecraft flyby.<ref name="sr" />
* [[Mars Geyser Hopper]], a lander that would investigate the springtime [[carbon dioxide]] [[Martian geyser]]s found in regions around the [[Planum Australe|Martian south pole]].<ref name="Geyser Hopper">{{citation |first1=Geoffrey A. |last1=Landis |first2=Steven J. |last2=Oleson |first3=Melissa |last3=McGuire |contribution=Design Study for a Mars Geyser Hopper |title=50th AIAA Aerospace Sciences Conference |publisher=Glenn Research Center, NASA |date=January 9, 2012 |contribution-url=https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20120004036_2012004260.pdf |contribution-format=PDF |access-date=July 1, 2012}}</ref><ref>{{cite web |url=https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20120004036_2012004260.pdf |title=Mars Geyser-Hopper (AIAA2012) |work=NASA Technical Reports |publisher=NASA |access-date=February 28, 2014}}</ref>
* '''MAGIC''' (Mars Geoscience Imaging at Centimeter-scale), an orbiter that would provide images of the Martian surface at 5–10&nbsp;cm/pixel, permitting resolution of features as small as 20–40&nbsp;cm.<ref name="lpi_4325">{{cite web |url=http://www.lpi.usra.edu/meetings/marsconcepts2012/pdf/4325.pdf |title=Mars Geoscience Imaging at Centimetre-Scale (MAGIC) from Orbit |first1=M. A. |last1=Ravine |first2=M. C. |last2=Malin |first3=M. A. |last3=Caplinger |work=Concepts and Approaches for Mars Exploration (2012) |publisher=Lunar and Planetary Institute |archive-url=https://web.archive.org/web/20131029185914/http://www.lpi.usra.edu/meetings/marsconcepts2012/pdf/4325.pdf |archive-date=October 29, 2013 |url-status=live}}</ref>
* ''[[Red Dragon (spacecraft)|Red Dragon]]'', a Mars lander and sample return.<ref name="8m">{{citation |contribution=Red Dragon |title=Feasibility of a Dragon-derived Mars lander for scientific and human-precursor investigations |url=http://digitalvideo.8m.net/SpaceX/RedDragon/karcz-red_dragon-nac-2011-10-29-1.pdf |publisher=SpaceX |date=October 31, 2011 |archive-url=https://web.archive.org/web/20120616154043/http://digitalvideo.8m.net/SpaceX/RedDragon/karcz-red_dragon-nac-2011-10-29-1.pdf |archive-date=June 16, 2012 |url-status=live}}</ref>