A green glowing orb was sighted in the sky - but is this phenomena more than just a meteor?
A strange phenomena turned the sky green as it shot through the air, caught in this footage.
What may have been a meteor was seen for several minutes as it flew overhead in Buenes Aires.
But some observers say the green hue it gave the sky was otherworldly and could have been a UFO .
One witness said it was a "huge luminous sphere."
It flew above the area of Caseros, in the northwest area of the province of Buenos Aires, in eastern Argentina.
On Twitter, the hashtag #CieloVerde (GreenSky) quickly became one of the most hotly debated subjects as the images were seen and shared.
