Best All Sky
eROSITA is a German observatory utilizing a space-based x-ray telescope. Launched in 2019 as part of the Spektr-RG mission, it performs the first comprehensive all-sky survey within the medium x-ray spectrum. This allows astronomers to study distant galaxies and energetic events across the entire sk...
WISE was a NASA space observatory designed to conduct a comprehensive all-sky infrared survey. Launched in 2009, it scanned the heavens using infrared light, identifying previously unknown asteroids and distant galaxies. The data collected by WISE remains valuable for astronomers studying celestial...
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...
