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1 .This is Scientific American 60-Second Space, I'm Clara Moskowitz.Got a minute?
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2 .Right this moment, a massive ball of ice and dust is careening toward the sun.
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3 .Comet ISON has flared so bright in recent days that it's now visible with the naked eye.
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4 .And the comet will likely keep getting brighter until November 28th,
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5 .when it dives closest to the sun, coming within just three solar radii of the sun's surface.
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6 .If ISON survives this Thanksgiving Day encounter, it could make for some truly spectacular sky-watching.
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7 .There's a small chance it could even be faintly visible in daylight.
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8 .But such views would be dashed if the comet's ice core disintegrates from the sun's intense rays and gravitational force.
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9 .The rare comet was discovered last September.
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10 .ISON started its journey thousands of years ago in the Oort Cloud,
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11 .a spherical collection of icy bodies about one light-year from the sun.
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12 .The comet now appears as a faint smudge in the eastern sky before dawn.
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13 .Its tail has noticeably lengthened, and is now almost as wide across the sky as the bowl of the Big Dipper.
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14 .So grab a telescope or binoculars, or just look up: don't miss this once-in-many-lifetimes event.
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15 .Thanks for the minute, for Scientific American 60-Second Space. I'm Clara Moskowitz.
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