**Image caption:** Artist's impression of 3I/ATLAS as it passes close to the Sun, illuminating one side of the comet. On the Sun-facing side, methanol gas is shown in blue, with frozen dust grains still visible. On the dark side of the comet, hydrogen cyanide is shown in orange. Credit: NSF/AUI/NSF NRAO/M. Weiss

An image of the interstellar comet 3I/ATLAS near the Sun, with methanol in blue and hydrogen cyanide in orange.

**Image caption:**
Artist's impression of 3I/ATLAS as it passes near the Sun, illuminating one side of the comet. On the Sun-facing side, methanol gas is shown in blue, with frozen dust grains still visible. On the dark side of the comet, hydrogen cyanide is shown in orange. Credit: NSF/AUI/NSF NRAO/M. Weiss

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