Uploaded January 2026 | Updated September 2026, 2 weeks ago

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Astronomers might not know what dark matter is made of, and they might not be able to see it, but they know that it exists. So over the decades, they've proposed a lot of experiments that would allow them to study it. One of the latest turns the surface of Jupiter's moon Ganymede into an ancient crime scene.

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Sources:
docs.google.com/document/d/e/2PACX-1vSWpJP4dTENKiit_RjzAo1TUpJ96RqDtf8MTBF_Xm_e76SGWFdSWtc3sptGYsKuYnx_vkncbMgrhbqY/pub