NASA has announced that SpaceX’s Falcon 9 rocket – using a flight-proven booster – will launch the ~300 kg (670 lb) Imaging X-ray Polarimetry Explorer (IXPE) spacecraft no earlier than April 2021. Intriguingly, IXPE was originally planned to launch on Orbital ATK (now Northrop Grumman’s) Pegasus XL but NASA never followed through with a launch […]
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