UVEX

Ultraviolet Explorer

UVEX spacecraft render
Mission type	Ultraviolet astronomy
Operator	NASA / Goddard, Caltech
Website	https://www.uvex.caltech.edu/
Mission duration	2 years (planned)[1]
Start of mission
Launch date	2030 (planned)
Orbital parameters
Reference system	Geocentric orbit
Regime	Highly elliptical orbit[2]
Perigee altitude	104,000 km (65,000 mi)[2]
Apogee altitude	396,000 km (246,000 mi)
Period	13.7 days
Main telescope
Type	Three-mirror anastigmat[2]
Diameter	75 cm (30 in)
Focal length	f/2.7
Wavelengths	139–190 nm (FUV imager) 203–270 nm (NUV imager) 115–265 nm (spectrograph)
Resolution	2.25 arcsecond (imager)[1] R ≥ 1000 (spectrograph)
Instruments
Ultraviolet telescope

The Ultraviolet Explorer (UVEX) is an upcoming wide-field ultraviolet space telescope from NASA scheduled to launch in 2030.^[1] UVEX will build off of previous ultraviolet space telescopes, specifically GALEX, conducting surveys of the entire sky in both near- and far-ultraviolet light. UVEX will study the evolution of low-metallicity stars and how they affect the evolution of low-metallicity and low-mass galaxies. The probe can also be used for quick-turnaround observation of cosmic events, such as merging stars. UVEX's data will be able to complement other all-sky survey programs in different wavelengths of light, notably those by the Vera C. Rubin Observatory, the Roman Space Telescope, and Euclid. Compared to earlier ultraviolet space telescopes, UVEX will feature more capable instrumentation and a larger mirror, enabling it to obtain higher-resolution data and observe fainter objects.^[2]