A double-tailed comet and natural phenomena to be seen in the time of Hazrat Mahdi (as)
Another portent of Hazrat Mahdi (as) revealed by İmam Rabbani has come about: the appearance of a double-tailed comet resembling a horn
Black holes
BRISTLETAIL
BRISTLETAILS
HIDDEN MIRACLES OF THE END TIMES OF OUR PROPHET: NO. 12 The Passage of Halley's Comet
HIDDEN MIRACLES OF THE END TIMES OF OUR PROPHET: NO. 3 The appearance of the Comet Lulin
Pulsars: pulsating stars
ROVE BEETLE; BEETLE
Technological signs for the end of times
The Baghdad Bridge which was bombed by insurgents in 2007 is one of the portents of Hazrat Mahdi's (as) appearance