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SPACE: Water Vapor Detected on Ganymede

Ganymede - NASA

In the wisp-thin sky of Jupiter’s moon Ganymede, the largest satellite in the solar system, astronomers have for the first time detected evidence of water vapor, a new study finds. The discovery could shed light on similar watery atmospheres that may envelop other icy bodies in the solar system and beyond, researchers said. Previous research suggested that Ganymede — which is larger than Mercury and Pluto, and only slightly smaller than Mars — may contain more water than all of Earth’s oceans combined. However, the Jovian moon is so cold that water on its surface is frozen solid. Any liquid … Read more

SPACE: Ganymede Gets Its Close-Up

Ganymede - Juno - NASA

Swooping low over Jupiter’s largest moon, Ganymede, NASA’s Juno probe has snapped the first close-up photographs of the frozen giant in more than two decades — and they’re breathtaking. Juno zoomed as close as 645 miles (1,038 kilometers) from the icy surface of the solar system’s largest moon Monday (June 7), giving the spacecraft just a 25-minute window to snap photos — long enough for five exposures —— before it zipped away on its 33rd orbit of Jupiter. Two photos from the flyby released by NASA Tuesday (June 8) — one of Ganymede’s light, sun-facing side and the other of … Read more

ANNOUNCEMENT: Ganymede: Abducted by the Gods, by Wendy Rathbone


QSFer Wendy Rathbone has a new MM fantasy book out: Sold by his father. Abducted against his will. My name is Ganymede, and I have been betrayed. Every boy my age dreams of leaving home to embark on a noble adventure, but never does any boy imagine it happening as it did to me. On the evening of my 18th naming day, when I expected no more than a chalice of wine and a few drunken flirtations to tempt my innocence, I was instead sold by my father to the god, Zeus – not because of anything particular I had … Read more