X-ray spacecraft reveals odd 'Cloverleaf' radio circle in new light (image)
ORCs are vast radio bubbles that engulf many galaxies within them. Thanks to XMM-Newton, astronomers may know the powerful event that gave rise to the Cloverleaf ORC.
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ORCs are vast radio bubbles that engulf many galaxies within them. Thanks to XMM-Newton, astronomers may know the powerful event that gave rise to the Cloverleaf ORC.
Astronomers have discovered enormous circular radio features of unknown origin around some galaxies. Now, new observations of one dubbed the Cloverleaf
(1) INTERNATIONAL REACTION TO HUGO AWARDS CENSORSHIP REPORT. Chris M. Barkley and Jason Sanford’s report “The 2023 Hugo Awards: A Report on Censorship and Exclusion” (also available at Genre Grapevine and as an e-book epub file and as a PDF) has sparked the attention of mass media: . The Guardian: “Authors ‘excluded from Hugo awards over China concerns’”. In
The eROSITA telescope’s detailed pictures are among the most precise cosmological measurements ever made. The eROSITA telescope’s detailed pictures are among the most precise cosmological measurements ever made.
“As part of the anti-Russian campaign that followed Moscow’s invasion of Ukraine on February 24, Russian research institutes and Russian scientists are being ostracized from the international scientific community.”