t DOUBLE TIME Jorge Restrepo Recording a transit of the International Space Station across the Sun is a challenge, but successfully capturing two in a month is particularly rare. This composite image shows the path of the ISS on both December 12th and December 31st of 2023, as seen from Mexico City, Mexico. The solar surface shows the chromosphere as it appeared on the 31st. DETAILS: Lunt LS60THa solar telescope and ZWO ASI174MM camera. Composite of 70 images. q THE PRINCESS AND THE COMET José J. Chambó Comet 12P/Pons-Brooks displayed a long, bluish ion tail as it passed M31, the Andromeda Galaxy, on March 12th. DETAILS: Canon EOS 6D camera and Samyang 135mm lens. Total exposure: 40 minutes at ISO 800. Gallery showcases the finest astronomical images that our readers submit to us. Send your best shots to gallery@skyandtelescope.org. See skyandtelescope.org/aboutsky/guidelines. Visit skyandtelescope.org/gallery for more of our readers' astrophotos. sk yand tele scope .o r g * JULY 2024 79http://www.skyandtelescope.org/aboutsky/guidelines http://www.skyandtelescope.org/gallery http://skyandtelescope.org