RadioAstron - A Telescope with a Size of 300 000 km: Main Parameters and First Observational Results. User PsiAmp, in the /r/space: news, articles and discussion subreddit, 25 Jul 2013
RadioAstron -- a Telescope with a Size of 300 000 km: Main Parameters and First Observational Results (x-post from /r/astronomy) User sol1869, in the Plasma Cosmology subreddit, 27 Mar 2013
RadioAstron -- a Telescope with a Size of 300 000 km: Main Parameters and First Observational Results User nastratin, in the Astronomy subreddit, 26 Mar 2013
Radiointerferometry in space: RadioAstron -- a Telescope with a Size of 300 000 km: Main Parameters and First Observational Results User agoldin, in the /r/space: news, articles and discussion subreddit, 25 Mar 2013