Comparison between the VLA archival observations and the new MeerKAT observations of GRS 1758–258. Contours increase in eight steps, from 2 or 3σ above the rms level depending on the epoch, up to 8σ. For the 2016 and 2024 epochs, which have a local rms of 10 μJy, we adopted a threshold of 3σ. For the other epochs, which had higher local rms values (20 μJy, except for the 2001 one, where it is 40 μJy), a 2σ threshold was used to ensure that the faint extended structures could still be identified.