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XL-Calibur Telescope Launches to Study Cosmic High-Energy Events

11/19/2025

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Summary

Story summary

Researchers launched the XL-Calibur telescope from Sweden to Canada in July 2024 to study high-energy events.
The telescope measured X-ray polarization for the Crab Nebula and Cygnus X-1.
Cygnus X-1 has a mass of 21.2 solar masses.
The team includes Washington University and KTH Royal Institute of Technology, planning Antarctic flights in 2027 and publishing findings in The Astrophysical Journal.

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Story summary

Researchers launched the XL-Calibur telescope from Sweden to Canada in July 2024 to study high-energy events.
The telescope measured X-ray polarization for the Crab Nebula and Cygnus X-1.
Cygnus X-1 has a mass of 21.2 solar masses.
The team includes Washington University and KTH Royal Institute of Technology, planning Antarctic flights in 2027 and publishing findings in The Astrophysical Journal.