Comets, stars, and rock ‘n roll

Comets, stars, and rock ‘n roll

Impact scar on Jupiter from Comet Shoemaker-Levy 9 • Image by HST/Judy Schmidt (CC BY 2.0)

Originally published 2 March 1998

An e‑mail query from a young acquain­tance: “One of my favorite songs in all of explored space is ‘Jupiter Crash’ by The Cure. One of the lines is ‘…mean­while mil­lions of miles away in space/ the incom­ing comet brush­es Jupiter’s face…’ Well, I just read an inter­view in which Robert Smith alludes to the Jupiter crash as if it were an actu­al event. I had thought that it was just some­thing he had made up. So if it is real, what exact­ly is a Jupiter crash?”

I had a pret­ty good idea what might be the “Jupiter crash.” But first I had to make a trip to the Inter­net to learn about The Cure, Robert Smith, and the lyrics to his song.

The Cure is a British male rock band, formed in 1978 and still going strong. Robert Smith, who writes and sings the songs, was a founder of the group, which has seen a lot of faces come and go. He remains the band’s cen­tral figure.

The song “Jupiter Crash,” copy­right­ed 1996, is about a night­time encounter with a woman on the sand by the sea, which the lyri­cist likens to a comet crash in space — the irre­sistible attrac­tion, the vio­lent splash into Jupiter’s gassy sphere, the dis­ap­pear­ance with­out a trace. “Is this how it feels?” asks the lyri­cist. “Is this how a star falls?”

No doubt about it, Robert Smith is refer­ring metaphor­i­cal­ly to the great comet crash of 1994, the most vio­lent event ever wit­nessed in the solar system.

The comet was Shoe­mak­er-Levy 9, dis­cov­ered on March 25, 1993, by the pro­lif­ic hus­band-and-wife comet-find­ing team of Gene and Car­olyn Shoe­mak­er work­ing with ace comet-hunter David Levy, on pho­to­graph­ic plates made with an 18-inch tele­scope on Palo­mar Mountain.

The comet, when it was dis­cov­ered, had recent­ly under­gone a close encounter with Jupiter. Aston­ish­ing­ly, the grav­i­ty of the giant plan­et had ripped the comet into a string of 21 pieces, strung out in space like beads on a string. Noth­ing like it had ever been seen before.

The comet was still caught in Jupiter’s grav­i­ty. Astronomers quick­ly cal­cu­lat­ed that after a short excur­sion away from Jupiter, it would cycle back and crash into the plan­et in July 1994.

Few astro­nom­i­cal events have caused so much antic­i­pa­tion and excite­ment among astronomers. The suc­ces­sive impacts of the chunks of Shoe­mak­er-Levy 9, spread out over a week, were observed by count­less tele­scopes on Earth and by the Hub­ble Space Telescope.

The scars on Jupiter’s face remained vis­i­ble for almost a year.

David Levy, co-dis­cov­er­er of the comet, has recent­ly pub­lished a lit­tle book, called More Things in Heav­en and Earth, that com­pares the ways poets and astronomers read the night sky. He does not include rock lyrics, but poets like Ger­ard Man­ley Hop­kins, John Keats, and Robert Frost fig­ure prominently.

One of the loveli­est astro­nom­i­cal images in Levy’s book was penned by Hop­kins in Sep­tem­ber 1864, less than a month after the pre-dawn appear­ance of Comet Tem­pel. The poet com­pares him­self to “a slip of comet,/ Scarce worth dis­cov­ery.” A comet comes out of space, bright­ens as it approach­es the sun, then goes “out into the cav­ernous dark”:

So I go out: my little sweet is done:
I have drawn heat from this contagious sun:
To not ungentle death now forth I run.

A per­son­al favorite Hop­kins poem, omit­ted by Levy, begins:

Look at the stars! Look, look up at the skies!
O look at all the fire-folk sitting in the air!
The bright boroughs, the quivering citadels there!
The dim woods quick with diamond wells; the elf-eyes!

Anoth­er favorite astro­nom­i­cal image are these lines spo­ken by the Earth in Shel­ley’s Prometheus Unbound, which beau­ti­ful­ly describes some­thing the poet has seen only in his mind’s eye — the Earth­’s shad­ow, a long cone of dark­ness reach­ing out into space far past the moon:

I spin beneath my pyramid of night
Which points into the heavens, dreaming delight,
Murmuring victorious joy in my enchanted sleep;
As a youth lulled by love-dreams faintly sighing,
Under the shadow of his beauty lying,
Which round his rest a watch of light and warmth doth keep.

I have often thought of Shel­ley’s image as I watched the moon move into the Earth­’s shad­ow dur­ing a lunar eclipse, espe­cial­ly dur­ing the won­der­ful April 1996 eclipse that coin­cid­ed with the appear­ance of Comet Hyakutake.

David Levy has dis­cov­ered or co-dis­cov­ered more than 20 comets, includ­ing the one that crashed into Jupiter. Through his dis­cov­er­ies and writ­ings he has made him­self one of the world’s best-known astronomers. How­ev­er, he has nev­er tak­en an aca­d­e­m­ic course in astron­o­my; his degrees are in Eng­lish lit­er­a­ture, which helps explain the poet­ic sen­si­tiv­i­ty that he brings to the tele­scope — and to his writ­ings about the spec­tac­u­lar demise of Comet Shoe­mak­er-Levy 9.

Yeah, that was it. That was the Jupiter crash. Drawn too close and gone in a flash,” sings Robert Smith about his noc­tur­nal encounter on the sand. These sorts of lyrics are not like­ly to touch the heart or mind of an old fogey like me, but it’s good to know that poets of the rock gen­er­a­tion have not lost their con­tact with the sky.

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