astro-h

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  • JAXA

    Japan's most powerful X-ray satellite is dead

    by 
    Mariella Moon
    Mariella Moon
    04.29.2016

    JAXA has given up trying to rescue its doomed X-ray satellite. The Japanese space agency has announced that it's discontinuing Hitomi's operations. Previously known as Astro-H, the x-ray observatory was designed to study black holes, galaxy clusters and other high-energy phenomena. Unfortunately, it started tumbling and spinning through space shortly after launch, ultimately losing contact with its ground team. JAXA thought the $300 million spacecraft tried to re-establish contact, but in its announcement today, the agency revealed that the signals it received were from another source altogether.

  • Japan is trying to rescue its tumbling X-ray satellite

    by 
    Steve Dent
    Steve Dent
    03.30.2016

    Japan's JAXA space agency is struggling to figure out what happened to its Astro-H "Hitomi" satellite after it lost contact on Saturday. Radar data from the US Strategic Command's Joint Space Operations Center (JSpOC) initially showed that several parts may have broken off and JAXA's radar has spied at least one separated piece. Yesterday, scientists received intermittent signals from the craft, showing that it might be at least partially functional. However, amateur video now appears to show the $360 million X-ray telescope-equipped craft tumbling through space.

  • JAXA

    Japan's most powerful X-ray satellite went incommunicado

    by 
    Mariella Moon
    Mariella Moon
    03.29.2016

    Japan's space agency launched its latest X-ray satellite Hitomi in February, expecting it to keep an eye on the universe for at least three years. Sadly, its future is now uncertain. JAXA lost contact with the observatory (previously called Astro-H) this weekend, and it's still trying to find out what happened to its $270 million mission. Astronomers realized something was wrong when Hitomi failed to phone home for a routine check on Sunday, March 27th, 3:40AM Eastern time. The US Joint Space Operations Center reported afterward that it spotted five pieces of debris in Hitomi's location before JAXA was supposed to hear from the satellite.

  • JAXA/NASA's Goddard Space Flight Center

    Japan's X-ray satellite Astro-H will soon blast off to space

    by 
    Mariella Moon
    Mariella Moon
    02.11.2016

    Japan Aerospace Exploration Agency's (JAXA) newest (and sixth!) X-ray observatory is leaving for space on Friday to study black holes and galaxy clusters. It's called Astro-H, and it's blasting off with several scientific instruments in tow. These include ones that can detect X-ray sources 10 times fainter than what its predecessor, the Suzaku, could detect. The star of the show, though, is its Soft X-Ray Spectrometer (SXS), which is fitted with a "microcalorimeter." The Goddard-built spectrometer (designed in cooperation with various Japanese institutions) will use that device to measure and distinguish X-ray colors.