Before sunrise on August 12, six planets will stretch across the morning sky. Mercury, Mars, Jupiter, Uranus, Saturn, and Neptune will all sit above the horizon at once, a lineup rare enough that NASA and major observatories have been tracking it for months. Hours later, the moon will pass fully between the earth and the sun, casting a total solar eclipse across a remote stretch of Russia, over Greenland, through Iceland, and down into northern Spain and a corner of Portugal, with a partial eclipse visible across a much wider stretch of the Northern Hemisphere. Then, once darkness falls, the Perseid meteor shower will reach its peak, filling the sky with the burning debris of Comet Swift-Tuttle.
Three celestial events, one calendar day. On the Hebrew calendar, that day is the 29th of Av, 5786, the final day of Av and the eve of Rosh Chodesh Elul, the new month in which the Jewish people begin the work of teshuva, repentance, that carries through to Rosh Hashanah and Yom Kippur.
An Eclipse Built Into the Calendar of the Nations
In Tractate Sukkah, the Sages taught plainly that an eclipse of the sun is a bad omen for the entire world, and compared it to a king who prepared a great feast for his servants and lit a lantern to illuminate the hall, then, in anger, ordered the lantern removed and the servants left to sit in darkness. The Gemara goes further and specifies whom the omen addresses. A solar eclipse is a warning to the nations that set their calendar by the sun. A lunar eclipse, by contrast, is directed at Israel, since Israel sets its calendar by the moon.
But the same passage carries a clear exemption for the Jewish people, and it is here that the prophet Jeremiah is invoked directly:
Thus said Hashem: Do not learn to go the way of the nations, and do not be dismayed by portents in the sky, for the nations shall be dismayed by them. (Jeremiah 10:2)
In this verse, the prophet teaches that the nations should take heed to what is being displayed in the sky, but Israel can rely on its covenant with God and the merit earned from performing mitzvoth. An eclipse that falls on a solar-calendar nation’s watch, then, is not a message aimed at the Jewish people. It is a message aimed squarely at everyone else.
This was further explained in a story from Shabbat 156b. Shmuel, a Babylonian sage and himself a skilled astronomer, was sitting with Avleit, a gentile astrologer. They watched a group of men heading out to a swamp to cut reeds. Avleit predicted that one particular man would not come back alive, that a snake would bite him and kill him. Shmuel disagreed on one condition: if the man was a Jew, he said, he would go and return safely.
The man did return. Avleit, checking his claim, threw down the man’s bundle of reeds and found a snake inside it, cut cleanly in two. Shmuel asked the man what he had done to deserve being spared. The man explained that the group shared their bread each day from one basket, and that day he had noticed one man among them too embarrassed to admit he had brought none. To spare him the shame, he quietly took a portion from his own bread and gave it as though it belonged to the group, so the man’s lack would never be exposed.
Shmuel called it an act of true charity and drew the lesson from Proverbs 10:2, that charity saves not merely from an unusual death, but from death itself.
The Gemara pairs this with the story of Rabbi Akiva’s daughter, told right alongside it to make the same point twice. Chaldean astrologers warned Rabbi Akiva that his daughter would be killed by a snake bite on the day of her wedding. On that day, she pinned her hair ornament into a crack in the wall, and its pin happened to pierce the eye of a snake hiding there, killing it without her knowledge. The next morning, drawing the pin back out, she found the dead snake still attached. Rabbi Akiva asked her the same question Shmuel had asked the reed-cutter, what she had done to merit escaping death. She told him that a poor man had knocked during the wedding feast, and in the noise and business of the celebration, no one else had heard him. She had taken her own portion of the food and given it to him rather than let him go hungry unnoticed. Rabbi Akiva told her, too, that she had performed a mitzvah.
The Gemara sets both stories beside the flat statement made elsewhere on the same page, that there is no mazal for Israel. The constellations may govern the fate of the nations, but a single quiet act of charity, done without any expectation of being seen or rewarded, was enough to override what the stars had already decreed for a Jew in both cases. It is a natural companion piece to the eclipse material, since it makes the same argument from the opposite direction: where Sukkah 29a says Israel need not fear the sky’s portents, Shabbat 156b shows a Jew actively overriding one through an unseen act of kindness.
Why the Eclipse Happens at All
A total solar eclipse is possible only because of a coincidence unmatched anywhere else that astronomers have observed in the solar system. The sun is roughly 400 times farther from the Earth than the moon, and also roughly 400 times larger, so the two bodies appear almost precisely the same size in the sky. Move either distance even slightly, and the eclipse either vanishes or turns into a ring of fire instead of a total blackout. On August 12, the moon will sit close enough to Earth to blot out the sun completely along a narrow path, with totality lasting up to 2 minutes and 18 seconds at its longest.
The Talmud in Hulin ties the very asymmetry between the sun and moon to the account of creation itself. Genesis records: Hashem made the two great lights, the greater light to dominate the day and the lesser light to dominate the night, and the stars (Genesis 1:16). The Sages ask why one is called great and the other diminished if both were created as lights. Their answer: the sun and moon were created equal in size and brilliance, until the moon complained that two kings cannot share one crown. God reduced the moon’s light in response and compensated Israel by commanding that its calendar be set by the moon’s monthly cycle. Jewish teaching holds that this diminishment will be reversed at the end of days, when the sun and moon shine with equal force once more.
The Parade and the Storm
The six-planet alignment is a matter of orbital timing rather than any deeper mechanism. All six planets happen to sit on a shared arc across the pre-dawn sky, along the same flat plane in which the solar system’s planets travel. Mars and Saturn will be easiest to catch with the naked eye, Mercury and Jupiter will sit low near the horizon, and Uranus and Neptune will require binoculars.
The meteor storm that follows after dark has a different origin. Every August the earth passes through the debris trail of Comet 109P/Swift-Tuttle, a comet roughly twenty-six kilometers wide that completes one orbit of the sun every 133 years. Fragments of that debris strike the atmosphere at nearly 37 miles per second and burn up in streaks of light, producing what the Talmud in Berakhot calls kochav shavit, a “staff star.” The Mishnah instructs that a blessing be recited on seeing one, either oseh ma’aseh bereishit, “Who makes the works of Creation,” or she’koicho u’gevurato malei olam, “whose strength and might fill the world.”
The word for the star in that blessing shares its root with a far weightier verse:
I see him, but not now; I behold him, but not nigh; there shall step forth a star out of Yakov, and a scepter shall rise out of Yisrael, and shall smite through the corners of Moab, and break down all the sons of Seth. (Numbers 24:17)
The Sages read this verse as referring to the Messiah, and it is the verse Rabbi Akiva invoked when he identified Bar Kochba as a messianic figure of his own generation. The Rambam cites this same prophecy in Hilchot Melachim as part of his proof that the Messiah will come. Jewish mystical tradition goes further still, teaching that the arrival of the Messiah will be accompanied by the appearance of unusual stars in the heavens, a sign written into the fabric of the End of Days rather than an isolated omen. A sky filled with literal shooting stars, arriving on the threshold of the month set aside for national and personal teshuva, sits directly beneath that same image.
The Threshold Itself
Av is the month in which the Temple burned. Elul is the month in which the Jewish people return. According to tradition, Moses ascended Mount Sinai on the first of Elul to receive the second set of tablets after the sin of the Golden Calf, and remained there forty days before descending on Yom Kippur with divine forgiveness secured. The Sages read the letters of Elul as an acronym for Ani LeDodi VeDodi Li, “I am my Beloved’s and my Beloved is mine” (Song of Songs 6:3), the verse tied to this entire season of closeness between God and Israel.
A solar eclipse that the Talmud calls a warning to the nations. A meteor shower carrying the same root as the star of Yaakov. A planetary parade crossing the pre-dawn sky. All three land on the final day of Av, one day before the teshuva season begins.
The sky is not required to explain itself before it speaks. Jeremiah already gave the instruction for receiving it: the nations will be dismayed by the signs of heaven, but Israel need not be. What is left is the part Elul was built for, not fear, but return.