Once in 50,000-year comet may be visible to the naked eye

Made of ice and dust and emitting a greenish aura, the comet is estimated to have a diameter of around a kilometre

from The News International - Sci-Tech https://ift.tt/RwgJSoK
Made of ice and dust and emitting a greenish aura, the comet is estimated to have a diameter of around a kilometre https://ift.tt/4lbKaPi