Today's PerspectiveReporter Liu Xia from our newspaperOver the past few decades, human gaze has swept over many wonderful scenes within the solar system: the crisscrossing waterways on Mars, the geysers continuously ejecting into space on Enceladus, the cold icebergs on Pluto, and so on.What surprises would you capture if you extended your field of view further away? In a recent report, the website of New Scientist magazine in the UK described an exhilarating journey of the most magnificent landscapes in the Milky Way: from a "internet celebrity" black hole to a dark matter river; From a livable exoplanet for humans to a grand cosmic fireworks displayS1 Stream: A Star "River" Carrying Dark MatterThe journey officially begins...