swap_horiz ROSAT Alternatives
Looking for alternatives to ROSAT? Compare the top Observatory options ranked by our AI scoring system.
ROSAT
ROSAT, short for Röntgensatellit, was a German-led space observatory launched in 1990 for X-ray and extreme-ultraviolet astronomy. Its principal achievement was the first all-sky X-ray survey performed with an imaging telescope, which cataloged tens of thousands of sources. The mission supplied astr...
apps Top ROSAT Alternatives
The top alternative to ROSAT in 2026 is Kepler Space Telescope with a score of 8.83/10, followed by Hipparcos (8.65) and Planck (8.60).
Kepler Space Telescope
The Kepler Space Telescope was a NASA observatory launched in 2009. It monitored over 150,000 stars for dips in brightne...
Hipparcos
Hipparcos was a European Space Agency observatory launched in 1989. It performed groundbreaking measurements of stellar...
Planck
The Planck mission was a European Space Agency-operated observatory designed to study the Cosmic Microwave Background (C...
Spitzer Space Telescope
The Spitzer Space Telescope was a NASA space-based observatory operating from 2003 to 2020. It utilized infrared light t...
Herschel Space Observatory
The Herschel Space Observatory is a decommissioned space-based observatory operated by the European Space Agency (ESA)....
Neil Gehrels Swift Observatory
The Neil Gehrels Swift Observatory is a NASA spacecraft dedicated to studying high-energy astrophysical events. Launched...
XMM-Newton
The XMM-Newton observatory, operated by ESA, observes the universe primarily in X-rays. Its large telescope allows for d...
BeppoSAX
BeppoSAX was a European Space Agency observatory launched in 1996. This satellite primarily observed X-rays and gamma ra...
Compton Gamma Ray Observatory
The Compton Gamma Ray Observatory was a NASA space-based observatory that operated from 1991 until its decommissioning i...
eROSITA
eROSITA is a German observatory utilizing a space-based x-ray telescope. Launched in 2019 as part of the Spektr-RG missi...
WISE
WISE was a NASA space observatory designed to conduct a comprehensive all-sky infrared survey. Launched in 2009, it scan...
Uhuru
Uhuru was a NASA-operated space observatory launched in 1970 as the first satellite dedicated specifically to X-ray astr...
Einstein Observatory
The Einstein Observatory, originally designated HEAO-2, was a pioneering NASA X-ray telescope launched into Earth orbit...
XRISM
XRISM (X-Ray Imaging and Spectroscopy Mission) is a space observatory jointly developed by JAXA and NASA, launched in Se...
Hinode
Hinode, which translates to "sunrise" in Japanese, is a solar observation satellite developed by the Japan Aerospace Exp...
RXTE
The Rossi X-ray Timing Explorer (RXTE) was a NASA satellite launched on December 30, 1995, to study time variability in...
LISA Pathfinder
LISA Pathfinder was an European Space Agency technology demonstrator spacecraft launched on December 3, 2015. Its primar...
Suzaku
Suzaku was a Japanese space telescope developed for X-ray astronomy by the Japan Aerospace Exploration Agency in collabo...
EXOSAT
EXOSAT was a European Space Agency space observatory launched in 1983 to study X-ray sources beyond Earth. Operating unt...
Astro-H / Hitomi
ASTRO-H, later named Hitomi, was a Japanese X-ray astronomy satellite developed by JAXA with international partners, inc...
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