来自MSN29 天
'Ghosts of the radio universe': Astronomers have discovered a slew of faint circular objects
In astronomy, surface brightness is a measure that tells us how easily visible an object ... Many of the ASKAP results presented here were obtained with one of its major observing programs called EMU ...
Phys.org1 个月
'Ghosts of the radio universe': Astronomers have discovered a slew of faint circular objects
In astronomy, surface brightness is a measure ... here were obtained with one of its major observing programs called EMU (Evolutionary Map of the Universe). EMU is mapping the entire southern ...
SBS6 个月
Indigenous astronomy: How the sky informs cultural practices
Astronomy is the study of celestial objects ... As Aunty Joanne explains, the Emu in the Sky, or the Dark Emu, is a well-known constellation that is outlined by the dark areas in the Milky Way.