In an image captured by the Hubble Space Telescope, Saturn’s rings display an unexplained phenomenon that looks like spokes moving across its rings.

Saturn’s “spoke season,” seen by NASA's Hubble Space Telescope’s Outer Planet Atmospheres Legacy (OPAL) program. Two smudgy spokes are seen in the B ring (left). The shape and shading of ...

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.

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 ...

NASA’s Hubble Space Telescope has sent back a brand-new image of giant gas planet Saturn and its incredible ring pattern.

A strange phenomenon on Saturn’s rings can only be spotted during its equinox. For the first time in 15 years, it’s back. And scientists are hoping Hubble can finally unlock the mystery.

The Hubble Space Telescope has captured the first signs of "spoke season", the appearance of mysterious spokes — or in this case blobs — in Saturn's rings. So what causes them?

It’s an unexpected interaction between Saturn and its rings that potentially could provide a tool for predicting if planets around other stars have glorious Saturn-like ring systems, too.

Saturn's vast ring system is heating the giant planet's upper atmosphere. The phenomenon has never before been seen in the solar system. It's an unexpected interaction between Saturn and its rings ...