Everyone knows which planets have rings: it's Saturn, Neptune, and Uranus. But there's one more you may not be aware of. Jupiter has rings too, although they're so faint, it took a spacecraft to find them (NASA's Voyager 1 mission in 1980). Until 1979, astronomers had no idea that wispy rings of dust and rock particles encircled our solar system's largest gas giant. That's because unlike the rings of Saturn, which are made of relatively large pieces of ice that reflect sunlight, Jupiter's rings are made of miniscule particles of rock and dust — some as small as cigarette-smoke particles — which makes them dark and nearly impossible to see from Earth.
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This is what an erupting volcano looks like from the International Space Station. 👀 Astronauts caught this striking view of Sarychev Volcano (in Russia’s Kuril Islands, northeast of Japan) in an early stage of eruption on June 12, 2009.