Hubble Revisits 40-Year-Old Mystery of Strange Star’s Nova
This artist’s concept shows the nova system HM Sagittae (HM Sge), where a white dwarf star is pulling material from its red giant companion. This forms a hot, blazing disk…
This artist’s concept shows the nova system HM Sagittae (HM Sge), where a white dwarf star is pulling material from its red giant companion. This forms a hot, blazing disk…
Using the Hubble Space Telescope, astronomers have mapped, for the first time ever, the plasma “burps” of a supermassive black hole-powered quasar that resides relatively close to Earth. While supermassive…