August 21, 2026
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Breaking News
  • [ August 20, 2026 ] SpaceX launches 29 Starlink satellites from Cape Canaveral following last-minute scrub Falcon 9
  • [ August 19, 2026 ] LandSpace becomes first commercial Chinese company to land an orbital-class booster Mission Reports
  • [ August 18, 2026 ] Astronauts remove failed antenna; run out of time to install a spare News
  • [ August 18, 2026 ] SpaceX exceeds 11,000 satellites in low Earth orbit Falcon 9
  • [ August 15, 2026 ] SpaceX launches record-breaking back-to-back Falcon 9 rockets for Globalstar, U.S. Space Force Falcon 9

Astrophysics

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.

Falcon 9

SpaceX wins NASA contract to launch X-ray telescope on reused rocket

July 8, 2019 Stephen Clark

NASA has selected a SpaceX Falcon 9 rocket — flying with a reused first stage booster — to launch the Imaging X-ray Polarimetry Explorer mission from pad 39A at the Kennedy Space Center in Florida in April 2021, bypassing Northrop Grumman’s air-launched Pegasus rocket for the task.

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

NASA to shut down Spitzer Space Telescope early next year

May 30, 2019 Stephen Clark

After a search for an outside funding source turned up empty, NASA plans to end observations with the Spitzer Space Telescope in January to conclude a 16-year mission that discovered exoplanets, studied galaxies in the ancient universe, and peered at planets and asteroids in our own solar system.

Mission Reports

X-ray communications experiment delivered to space station

May 10, 2019 Stephen Clark

A novel communications experiment developed by NASA and the Naval Research Laboratory has arrived at the International Space Station to prove data can be transmitted in space using X-ray signals, a breakthrough that could have uses in deep space exploration and military technology on Earth.

Members

Q&A with Keith Gendreau, principal investigator of the first X-ray space communications experiment (members only)

May 7, 2019 Stephen Clark

Keith Gendreau, an astrophysicist at NASA’s Goddard Space Flight Center, recently spoke with Spaceflight Now about a new experiment on the International Space Station to demonstrate X-ray communications in space for the first time.

Posts pagination

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News Headlines

  • SpaceX launches 29 Starlink satellites from Cape Canaveral following last-minute scrub
    August 20, 2026
  • LandSpace becomes first commercial Chinese company to land an orbital-class booster
    August 19, 2026
  • Astronauts remove failed antenna; run out of time to install a spare
    August 18, 2026
  • SpaceX exceeds 11,000 satellites in low Earth orbit
    August 18, 2026
  • SpaceX launches record-breaking back-to-back Falcon 9 rockets for Globalstar, U.S. Space Force
    August 15, 2026
  • NASA Administrator ‘extremely confident’ in Artemis 3 mission in 2027
    August 14, 2026
  • 006A0544.NEF
    Mike Fincke, a 30-year astronaut with experience across four spacecraft, retires from NASA
    August 12, 2026
  • Firefly Aerospace pushes debut of Alpha Block 2 rocket to the fourth quarter of 2026
    August 11, 2026
  • SpaceX launches 24 Starlink satellites on Falcon 9 rocket from Vandenberg SFB
    August 11, 2026
  • Window for 2026 launch debut of Rocket Lab’s Neutron rocket ‘is narrowing’ as development continues
    August 10, 2026
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