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SPHEREx: History & Overview

SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) is a near-infrared space observatory that is performing an all-sky survey to measure the near-infrared spectra of approximately 450 million galaxies. In February 2019, SPHEREx was selected by NASA for its next Medium-Class Explorers mission, beating out…

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SPHEREx topic overview

The analysis highlights History and Overview as prominent areas in the source structure around SPHEREx. 1 topic appears in more than one source area, which can help identify connections that are less obvious in a linear reading.

Related topics
35
Source areas
2
Connected nodes
38
Extracted relationships
72
Concept neighborhoods
22
Bridge connections
38

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 32 topics
History · 4 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Altitude
700 km (430 mi)[citation needed]
Band
S-band, Ka-band
Contractor
SpaceX
COSPAR ID
2025-047E
Diameter
20 cm (7.9 in)
Dimensions
2.6 m (8 ft 6 in) tall, 3.2 m (10 ft) wide and deep

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How SPHEREx connects Entity context

The extracted context around SPHEREx shows recurring relationship patterns in the source. For example, SPHEREx → An, April, Arcus, August, December, Each, Fast Infrared Exoplanet Spectroscopy, February, FINESSE, First, In August, July, March, May, Medium-Class Explorer, MIDEX, NASA, On, Phase, PUNCH Another extracted example is SPHEREx → BAE Systems Inc, Ball Aerospace, Caltech, Each, HgCdTe, Mission Systems, NASA's Jet Propulsion Laboratory, Space, Space Science Institute, Technologies, The, The Korea Astronomy, The SPHEREx. Use these groups to spot repeated connection types before inspecting the individual relationships.

SPHEREx

Top relations

related to history · 28
SPHEREx → An, April, Arcus, August, December, Each, Fast Infrared Exoplanet Spectroscopy, February, FINESSE, First, In August, July, March, May, Medium-Class Explorer, MIDEX, NASA, On, Phase, PUNCH
related to Spacecraft/telescope · 13
SPHEREx → BAE Systems Inc, Ball Aerospace, Caltech, Each, HgCdTe, Mission Systems, NASA's Jet Propulsion Laboratory, Space, Space Science Institute, Technologies, The, The Korea Astronomy, The SPHEREx
related to External links · 4
SPHEREx → Exoplanet Science, Near-Infrared, PDF, SPHEREx’s All-Sky Spectro-photometric Survey
related to Mission · 4
SPHEREx → It, LEISA, New Horizons, Specifically
Altitude · 1
SPHEREx → 700 km (430 mi)[citation needed]
Band · 1
SPHEREx → S-band, Ka-band
Contractor · 1
SPHEREx → SpaceX
COSPAR ID · 1
SPHEREx → 2025-047E
Diameter · 1
SPHEREx → 20 cm (7.9 in)
Dimensions · 1
SPHEREx → 2.6 m (8 ft 6 in) tall, 3.2 m (10 ft) wide and deep

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

mission nasa space selected explorer near-infrared history survey million systems telescope 11 galaxies all-sky spectra 2025 launch spacecraft universe epoch

SPHEREx relationships Subject–Predicate–Object triples

TTTA extracted 72 structured relationships around SPHEREx. Examples in this analysis include SPHEREx → Altitude → 700 km (430 mi)[citation needed] and SPHEREx → Band → S-band, Ka-band. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
SPHERExAltitude700 km (430 mi)[citation needed]1.00infobox
SPHERExBandS-band, Ka-band1.00infobox
SPHERExContractorSpaceX1.00infobox
SPHERExCOSPAR ID2025-047E1.00infobox
SPHERExDiameter20 cm (7.9 in)1.00infobox
SPHERExDimensions2.6 m (8 ft 6 in) tall, 3.2 m (10 ft) wide and deep1.00infobox
SPHERExInclination97°1.00infobox
SPHERExLaunch date12 March 2025, 03:10:00 UTC (11 March 2025, 8:10 pm PDT)1.00infobox
SPHERExLaunch mass502 kg (1,107 lb)1.00infobox
SPHERExLaunch siteVandenberg, SLC-4E1.00infobox
SPHERExManufacturerBAE Systems Inc. (Previously Ball Aerospace & Technologies)1.00infobox
SPHERExMission durationPlanned: 25 months Elapsed: 1 year, 5 months, 11 days1.00infobox
SPHERExMission typeAstrophysics1.00infobox
SPHERExNamesSpectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer1.00infobox
SPHERExOperatorNASA1.00infobox
SPHERExPeriod90 minutes1.00infobox
SPHERExPower750 watts1.00infobox
SPHERExReference systemGeocentric orbit1.00infobox
SPHERExRegimeSun-synchronous, low Earth orbit1.00infobox
SPHERExRocketFalcon 9 Block 51.00infobox
SPHERExSATCAT no.631821.00infobox
SPHERExWavelengthsNear-infrared1.00infobox
SPHERExWebsitespherex.caltech.edu1.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around SPHEREx bring nearby vocabulary together. In this analysis, examples include Explorer, Survey and Telescope. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • SPHEREx
    • Explorer
    • Survey
    • Telescope
    • Nasa
    • Selected
    • Space
    • Mission
    • Epoch
    • Reionization
    • Spacecraft
    • Spectra
    • Arcus
  • spherex
    • Explorer
    • Survey
    • Telescope
    • Nasa
    • Selected
    • Space
    • Mission
    • Epoch
    • Reionization
    • Spacecraft
    • Spectra
    • Arcus
  • all-sky survey
    • Near-infrared
    • Survey
    • Spectra
    • Explorer
    • Block
    • Explorers
    • Ices
    • Rocket
    • Spectro-photometer
    • Vandenberg
    • Aerospace
    • Arcus
  • vandenberg space force base
    • Block
    • Rocket
    • Falcon
    • Explorers
    • Punch
    • Aerospace
    • Ball
    • Galaxies
    • Launched
    • Near-infrared
    • Technologies
    • Spherex
  • nancy grace roman space telescope
    • Galaxies
    • Spherex
    • Telescope
    • Bae
    • Inc
    • Block
    • Punch
    • Redshift
    • Rocket
    • Spectro-photometer
    • Universe
    • Vandenberg
  • medium-class explorer
    • Survey
    • Ices
    • Spectro-photometer
    • History
    • Near-infrared
    • Reionization
    • Universe
    • Spherex
    • All-sky
    • Launch
    • Spectra
    • Nasa
  • space observatory
    • Galaxies
    • Spherex
    • Telescope
    • Block
    • Punch
    • Rocket
    • Spectro-photometer
    • Vandenberg
    • Aerospace
    • Ball
    • Caltech
    • Falcon
  • falcon 9 block 5
    • Rocket
    • Vandenberg
    • Block
    • Falcon
    • Launch
    • Explorers
    • Punch
    • Aerospace
    • Ball
    • Launched
    • Near-infrared
    • Technologies

Connections between topic areas Semantic bridges

For SPHEREx, one of the stronger structural bridges in this analysis connects SPHEREx with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
SPHERExOverview · splits 6 ⟂ 33
SPHERExHistory · splits 34 ⟂ 5

Map overview Semantic statistics

SPHEREx

Nodes39
Edges38
Triples72
Avg. degree1.95
Density0.051282
Components1

Source & methodology

TTTA analyzes the structure around SPHEREx to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History & Overview, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — SPHEREx · EN edition · Analysis: TopicsToTalkAbout

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