RT @RussianSpaceWeb: Sources: Russian #Hubble (#SpektrUF) faces tight schedule, despite delay to 2021. Details: russianspaceweb.com/spektr_uf.html… https://t.co/Cg7Ttv9Xl2
RT @RussianSpaceWeb: Sources: Russian #Hubble (#SpektrUF) faces tight schedule, despite delay to 2021. Details: russianspaceweb.com/spektr_uf.html… https://t.co/Cg7Ttv9Xl2