The Hubble Space Telescope captured mysterious features on Saturn's rings, signaling the start of the planet's "spoke season." The Hubble Space Telescope captured mysterious features on Saturn's ...

NASA’s Hubble Space Telescope captured new images of the spoke season during the planet’s equinox, when mysterious smudgy spokes appear around Saturn’s famed rings. Scientists still don’t ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The Hubble Space ...

New Hubble Space Telescope imagery of the Saturn show it's 'ring spokes' in orbit around the gas giant planet. Credit: ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The Hubble Space ...

The Hubble Space Telescope is investigating something strange about the beautiful rings around Saturn. You might picture Saturn’s rings as perfectly smooth, but in fact, they have some strange ...

Related: Finding life on Saturn's moon Enceladus might be easier than we thought Past Hubble images have shown that the spokes appear seasonally — Saturn's seasons each last about seven years.

Scientists using NASA's Hubble Space Telescope went looking for evidence of one phenomenon and found quite another.

(CNN) — The Hubble Space Telescope captured a newly revealed image of the mysterious, ghostly shadows on Saturn’s rings — the latest sighting of the so-called “spokes” that continue ...