Telescope for Habitable Exoplanets and Interstellar/Intergalactic Astronomy

Telescope for Habitable Exoplanets and Interstellar/Intergalactic Astronomy (THEIA) is a NASA-proposed 4-metre optical/ultraviolet space telescope that would succeed the Hubble Space Telescope and complement the infrared-James Webb Space Telescope. THEIA would use a 40-metre occulter to block starlight so as to directly image exoplanets.

References

THEIA Website

Space observatories

Current	AGILE AMS-02 Chandra (AXAF) Fermi Gaia Hinode (Solar-B) HiRISE Hisaki (Sprint-A) Hubble INTEGRAL IBEX IRIS Kepler MAXI MOST NEOSSat NuSTAR Odin PAMELA R/HESSI SDO SOHO SOLAR Spektr-R Spitzer Suzaku (Astro-EII) Swift TUGSAT-1 & UniBRITE-1 WISE XMM-Newton

Planned	Astro-H (2015) Astrosat (2015) Nano-JASMINE (2015) Spektr-RG (2016) HXMT (2014–2016) NICER (2016) CHEOPS (2017) Spektr-UV (2017) TESS (2017) James Webb (JWST) (2018+) SOLAR-C (2019) Euclid (2020) Space Solar Telescope PLATO (2024) ATHENA (2028) LISA/eLISA (2034)

Proposals	ATLAST EXCEDE Fresnel Imager FINESSE Hypertelescope New Worlds Mission NRO donation to NASA SPICA SOLAR-D THEIA WFIRST EUSO

Completed	Akari (Astro-F) (2006–2011) ALEXIS (1993–2005) ATM (1973–1974) ASCA (Astro-D) (1993–2000) Astro-1 (BBXRT HUT) (1990) Astro-2 (HUT) (1995) Astron (1983–1989) ANS (1974–1976) BeppoSAX (1996–2003) CHIPSat (2003–2008) Compton (CGRO) (1991–2000) COROT (2006–2013) Cos-B (1975–1982) COBE (1989–1993) EPOCh (2008) EPOXI (2010) EXOSAT (1983–1986) EUVE (1992–2001) FUSE (1999–2007) Kvant-1 (1987–2001) GALEX (2003–2013) Gamma (1990–1992) Ginga (Astro-C) (1987–1991) Granat (1989–1998) Hakucho (1979–1985) HALCA (1997–2005) HEAO-1 (1977–1979) Herschel (2009–2013) Hinotori (1981–1991) HEAO-2 (Einstein Obs.) (1978–1982) HEAO-3 (1979–1981) HETE-2 (2000–2007?) Hipparcos (1989–1993) IUE (1978–1996) IRAS (1983) ISO (1996–1998) IXAE (1996–2004) Kristall (1990–2001) LEGRI (1997–2002) MSX (1996–1997) OAO-2 (1968–1973) OAO-3 (Copernicus) (1972–1981) Orion 1/2 (1971/1973) Planck (2009–2013) RELIKT-1 (1983–1984) ROSAT (1990–1999) Rossi X-ray (RXTE) (1995–2012) SAMPEX (1992–2004) SAS-B (1972–1973) SAS-C (1975–1979) Tenma (Astro-B) (1983–1985) Uhuru (1970–1973) WMAP (2001–2010) 1st mission WISE (2009–2011) Yokoh (Solar-A) (1991–2001)

Lost	e.g. launch failures: OAO-1/OAO-B (1966/1970) ABRAXIS (1999) HETE (1996) WIRE (1999) ASTRO-E (2000)

Completed	hibernating after mission: SWAS (1998–2005) TRACE (1998–2010)

On hiatus	TAUVEX

Cancelled	Astro-G Constellation-X Darwin Destiny EChO Eddington FAME GEMS IXO JDEM LOFT SIM & SIMlite SNAP TPF XEUS

See also	Great Observatories program List of space telescopes

Category

Telescope for Habitable Exoplanets and Interstellar/Intergalactic Astronomy

See also

References