NASA Astrophysics Explorers Program

E79020

NASA space science program astrophysics mission program

The NASA Astrophysics Explorers Program is a series of competitively selected, cost-capped space missions that investigate key questions in astrophysics using innovative, focused scientific instruments and spacecraft.

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Observed surface forms (3)

Surface form	Occurrences
NASA Explorers Program	1
NASA Medium Explorer program	1
NASA Small Explorer program	1

Statements (48)

Predicate	Object
instanceOf	NASA space science program ⓘ astrophysics mission program ⓘ
agencyProgramFamily	NASA Explorer Program ⓘ surface form: NASA Explorers Program
beneficiary	international astrophysics community ⓘ
costPolicy	cost-capped missions ⓘ
country	United States of America ⓘ surface form: United States
dataPolicy	open data to scientific community ⓘ
emphasis	focused science goals ⓘ rapid development ⓘ relatively low mission cost ⓘ
field	astrophysics ⓘ
focus	innovative scientific instruments ⓘ small to medium-class spacecraft ⓘ
fundingSource	NASA Astrophysics Division budget ⓘ
missionType	space science program ⓘ space telescope program ⓘ
notableMission	GALEX Galaxy Evolution Explorer ⓘ surface form: Galaxy Evolution Explorer IXPE X-ray Polarimetry Explorer ⓘ surface form: Imaging X-ray Polarimetry Explorer Neil Gehrels Swift Observatory ⓘ NuSTAR Nuclear Spectroscopic Telescope Array ⓘ surface form: NuSTAR Transiting Exoplanet Survey Satellite ⓘ Wide-field Infrared Survey Explorer ⓘ
objective	investigate key questions in astrophysics ⓘ provide focused, innovative space missions ⓘ
operator	NASA ⓘ
parentAgency	NASA Science Mission Directorate ⓘ
parentDivision	NASA Astrophysics Division ⓘ
programClass	Medium Explorer (MIDEX) ⓘ Missions of Opportunity ⓘ Partner missions of opportunity ⓘ SMEX-Lite ⓘ surface form: Small Explorer (SMEX)
scienceDiscipline	X-ray astronomy ⓘ cosmology ⓘ galaxy evolution ⓘ gamma-ray astronomy ⓘ high-energy astrophysics ⓘ infrared astronomy ⓘ planetary systems and exoplanets ⓘ stellar astrophysics ⓘ ultraviolet astronomy ⓘ
scienceOutput	space-based astronomical observations ⓘ
selectionMethod	competitively selected ⓘ
selectionProcess	Announcement of Opportunity (AO) ⓘ peer-reviewed proposals ⓘ
supports	space-based observatories ⓘ suborbital and balloon-borne missions of opportunity ⓘ
timeframe	active in the 21st century ⓘ
typicalOrbit	Earth orbit ⓘ

Referenced by (6)

Full triples — surface form annotated when it differs from this entity's canonical label.

NuSTAR Nuclear Spectroscopic Telescope Array → missionProgram → NASA Astrophysics Explorers Program ⓘ

subject surface form: NuSTAR

this entity surface form: NASA Small Explorer program

NASA Science Mission Directorate → oversees → NASA Astrophysics Explorers Program ⓘ

NASA APD → overseesProgram → NASA Astrophysics Explorers Program ⓘ

NASA Astrophysics Division → overseesProgram → NASA Astrophysics Explorers Program ⓘ

IXPE X-ray Polarimetry Explorer → program → NASA Astrophysics Explorers Program ⓘ

subject surface form: IXPE

this entity surface form: NASA Explorers Program

Neil Gehrels Swift Observatory → program → NASA Astrophysics Explorers Program ⓘ

this entity surface form: NASA Medium Explorer program