The ISS is starting a sequence of excellent early-evening passes: it is incredibly bright, so you don't need any optical aids to see it. It's the largest man-made structure in space, so a decent lens (or telescope) will actually show the vast array of solar panels and modules.
The ISS crosses the sky from west to east: on these occasions it will pass more or less overhead, looking like a fast-moving bright star. The two later passes will take the space station into the Earth's shadow ('into eclipse') causing it to disappear.
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