November 9, 2025
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  • [ November 6, 2025 ] Issue with Atlas 5 booster liquid oxygen vent valve causes second scrub of ViaSat-3 F2 launch Atlas 5
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  • [ November 5, 2025 ] Atlas booster valve issue scrubs launch of ViaSat-3 F2 satellite Atlas 5

Spektr-RG

Mission Reports

German X-ray telescope achieves ‘first light’

October 23, 2019 Stephen Clark

Astronomers are elated with the first X-ray images from a German telescope on Russia’s Spektr-RG astronomy mission, demonstrating the instrument’s ability to observe galaxies near and far as scientists seek answers to questions about dark energy.

Mission Reports

Russia launches international X-ray astronomy mission

July 13, 2019 Stephen Clark

A Proton rocket and Block DM upper stage climbed into space Saturday from the Baikonur Cosmodrome in Kazakhstan with Spektr-RG, an astronomical observatory with dual X-ray telescopes developed by Russian and German scientists on the hunt for the signature of dark energy.

Mission Reports

Live coverage: Proton rocket lifts off with X-ray astronomy observatory

July 13, 2019 Stephen Clark

A Proton rocket lifted off from the Baikonur Cosmodrome in Kazakhstan with the Spektr-RG X-ray astronomy mission at 1230:57 GMT (8:30:57 a.m. EDT) Saturday.

Mission Reports

Proton launch delayed to Saturday

July 12, 2019 Stephen Clark

Russian officials have delayed until Saturday the launch of a Proton rocket from Kazakhstan with the Spektr-RG X-ray astronomy observatory, an ambitious mission jointly developed with Germany to probe dark energy.

Mission Reports

Proton rocket and astronomy satellite back on the launch pad after battery replacement

July 9, 2019 Stephen Clark

Poised to loft a Russian-German X-ray astronomy observatory into space Friday, a Proton rocket returned to its launch pad Tuesday at the Baikonur Cosmodrome in Kazakhstan after a three-week delay to replace a drained battery on the vehicle.

Mission Reports

Russia postpones launch of X-ray astronomy mission

June 21, 2019 Stephen Clark

Russian officials postponed the planned launch of a Proton rocket with an X-ray astronomy satellite Friday until no earlier than July 12 resolve a problem with an inadvertently drained battery on the vehicle.

Mission Reports

Russia to launch science mission probing dark energy

June 20, 2019 Stephen Clark

A Russian-built satellite hosting an array of X-ray telescopes is awaiting launch Friday from the Baikonur Cosmodrome in Kazakhstan on a mission to measure the mass and distance of colossal clusters of galaxies throughout the universe.

Mission Reports

Proton rocket, Russian-German astronomy satellite arrive at launch pad

June 14, 2019 Stephen Clark

A rocket-transporting railroad car ferried a Proton rocket to its launch pad Friday at the Baikonur Cosmodrome in Kazakhstan for final checkouts and testing before the vehicle’s scheduled June 21 liftoff with the Russian-German Spektr-RG X-ray telescope.

Mission Reports

Russia ships X-ray astronomy satellite to launch site

April 25, 2019 Stephen Clark

A Russian X-ray astronomy satellite with major contributions from German and U.S. scientists and instrument developers arrived Thursday at the Baikonur Cosmodrome in Kazakhstan for a launch in June aboard a Proton rocket.

News Headlines

  • Live coverage: Blue Origin to launch NASA’s Mars-bound ESCAPADE mission
    November 8, 2025
  • SpaceX launches Sunday Starlink mission following Saturday scrub
    November 7, 2025
  • Issue with Atlas 5 booster liquid oxygen vent valve causes second scrub of ViaSat-3 F2 launch
    November 6, 2025
  • SpaceX launches 28 Starlink satellites on Falcon 9 rocket from Vandenberg SFB
    November 6, 2025
  • Atlas booster valve issue scrubs launch of ViaSat-3 F2 satellite
    November 5, 2025
  • SpaceX launches 29 Starlink satellites on Falcon 9 rocket from Cape Canaveral
    November 5, 2025
  • President Trump renominates commercial astronaut Jared Isaacman for NASA administrator
    November 4, 2025
  • Commercial space station demo, data center precursor launch on SpaceX Bandwagon-4 mission
    November 1, 2025
  • SpaceX launches 100th Starlink flight of 2025
    October 31, 2025
  • Former NASA Administrators urge space agency to rethink plans for Artemis Moon lander
    October 30, 2025
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