Radio signal - Ireland

This RadioAstron map two supermassive black holes at the center of OJ 287, a galaxy located about 5 billion light-years away in the constellation of Cancer: if the central component corresponds to the primary black hole, then the next one upwards marks the secondary black hole, and the highest component represents a knot in its jet; the elongation of the individual components is not real, but is a reflection of the beam shape. Image credit: Valtonen et al., doi: 10.3847/1538-4357/ae057e.

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RadioAstron Captures Radio Image of Two Supermassive Black Holes Circling Each Other

October 10, 2025

Using data from the RadioAstron satellite, astronomers have produced a radio image of two supermassive black holes at…

A small part of the sky seen in radio waves by the Murchison Widefield Array. Image credit: Nunhokee et al. / ICRAR / Curtin University.

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Infant Universe Was Warm, Rather than Cold, before It Lit Up, Astronomers Say

October 1, 2025

Using the Murchison Widefield Array (MWA) telescope at CSIRO’s Murchison Radio-Astronomy Observatory, astronomers are searching for the elusive…

STP-Sat6. Image credit: Northrop Grumman.

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Study Reveals Cause of Potentially Damaging Electrical Discharges on Satellites

September 2, 2025

Using data collected by sensors on the U.S. Department of Defense Space Test Program Satellite 6 (STP-Sat6) in…