The Bright Rainbow
At the End of days, the rainbow, which until now has been seen with only bright colours, will change its form and appear as an iridescent rainbow, whose hues are illuminated, This will be the first sign of the coming of the King Messiah. From Chabad: "The Zohar says that before the Messiah comes, an especially bright and colorful rainbow will appear."
"Do not expect to see the Massiah until you see the rainbow with iridescent hues illuminating the universe, 0nly then can you expect to see the Messiah"… ZOHAR, - The book of Splendor. D. Balak 22
A New Star
"And then a terrible crimson star shall arise in the firmament and shall burn and glow throughout the day for all the world to behold." Zohar- The book of Splendor, D. Balak 22
And, facing it, rises a flame of fire. They stand, facing one another, for forty days, after which they start battling one another. In the end the star engulfs the flame. The star remains in the sky, where it drifts about for 12 days.
"One star will shines with seventy pillars of fire and seventy sparks from it. ZOHAR, D. Balak 22
Illumine the heavens. It shines, burning hot, for seventy days, and seventy other stars "shall be swallowed up" in it.
Islam also talks about a new star. From the literature of the hadith:
Ka'b said: "It is a star that rises from the East and illuminates for the people of the Earth like the illumination of a moon in a full-moon night." (Nuaim bin Hammad's book Kitab Al-Fitan)
Al-Walid said: "The redness and stars we have seen are not the Ayat (signs). The star of the Ayat (signs) is a star that flips (or turns) in the horizons in (the month of ) Safar or in (the 2 months of) Rabi (the first and second Rabi), or in (the month of) Rajab. Once this happens, Khankan marshes the Turks (Russians); the Romans (Europeans) of Zawahir will follow with the banners (battalions) and Crosses." (Nuaim bin Hammad's book Kitab Al-Fitan)
Ibn Mas'ud said: "There will be a sign in (the month of) Safar and the star with a tail will begin." (Nuaim bin Hammad's book Kitab Al-Fitan)
Ka'b said: “ 'A star will rise from the East before the appearance of the Mahdi and it has a tail.' And Sharik said:' Before the appearance of the Mahdi, the sun will have an eclipse in the month of Ramadan twice.' ” (Nuaim bin Hammad's book Kitab Al-Fitan)
"A star with a tail that illuminates all places will originate from the East, at three or seven-day intervals." (Muhammad Al-Barzanji's book Al-Isha'ah li Ashrat AsSaa'h)
The Pillar of Fire Returns
The pillar of fire, which the Lord sent to the People of Israel in order to guide them in their exodus from Egypt, appears at the End of Days to signify the beginning of redemption for the People of Israel from all evil decrees against them.
"And then a single pillar of fire shall be seen, standing from above to below for forty days"… ZOHAR, D. Balak 22
Islam also reports a pillar of fire, from the literature of the hadith:
Ibn Qazuwaih said that Kathir bin Murra said: " The Aya (sign) of the event of Ramadan will be a fire in the sky like the necks of camels or like iron columns. If you see it, prepare for your family food supplies for a year." Or perhaps he (Kathir bin Murra) said: "The Aya of the event is a column of fire originating from the sky." (Ibn Al-Shajari's Al-Amali Al-Shajaria)
Kathir bin Murra said: " The Aya (sign) of the occurrence is in Ramadan, and commotion (disturbance) is in Shawwal, Nazail in Zul-Qa'da, fighting is in Zul-Hijja, and the Aya (sign) of this is an illuminating column of light in the sky." (Nuaim bin Hammad's book Kitab Al-Fitan)
Khaded Bin Madan said: " If you see a column of fire from the East, in the month of Ramadan, in the sky, get food as much as you can, for it is (going to be) a year of starvation (famine)." (Tabarani, Nuaim bin Hammad's Kitab Al-Fitan )
Khaded Bin Madan said: " An Aya (sign) which is a column of fire rising from the East will appear that all people of the World will be able see. Whoever is present (alive) should arrange for his family food supply for one year." (Nuaim bin Hammad's Kitab Al-Fitan )
For Jewish End Time Events, see related article, Days of the Messiah from Kabbalah.info.