Home Science Saturn's moon Enceladus' 'tiger stripes' mystery explained

Saturn’s moon Enceladus’ ‘tiger stripes’ mystery explained

Saturn’s moon Enceladus has been shrouded in thriller since its discovery within the late 18th century, however now researchers consider they’ve solved what causes the moon’s “tiger stripes,” in line with a brand new examine.

The “tiger stripes,” which have been first noticed by NASA’s Cassini spacecraft, are evenly spaced fissures, roughly 130 kilometers lengthy and 35 kilometers aside. Icy materials from Enceladus’ ocean will get shot into them, an commentary that has stumped scientists.

“First seen by the Cassini mission to Saturn, these stripes are like nothing else identified in our Photo voltaic System,” the examine’s lead writer, Doug Hemingway, mentioned in a press release. “They’re parallel and evenly spaced, about 130 kilometers lengthy and 35 kilometers aside. What makes them particularly fascinating is that they’re regularly erupting with water ice, at the same time as we converse. No different icy planets or moons have something fairly like them.”

With its international ocean, distinctive chemistry and inner warmth, Enceladus has develop into a promising lead in our seek for worlds the place life might exist.


Attributable to its odd orbit, Enceladus, the sixth-largest of Saturn’s 62 confirmed moons, is not frozen strong, regardless of it being icy. So it stretches the ice sheets, that are skinny and simply break up open, the researchers discovered. It simply so occurs the stripes on the south pole cracked forward of these on the north pole.

The primary stripe, named after town of Baghdad, stayed open, inflicting the opposite stripes to develop into parallel. Because the water rose from the primary strip, the “stripes” shaped.

“Our mannequin explains the common spacing of the cracks,” the examine’s co-author, Max Rudolph, added. He additionally identified that the load of the icy materials that falls again “induced the ice sheet to flex simply sufficient to set off a parallel crack about 35 kilometers away.”

Hemingway and the opposite researchers famous that they have been in a position to examine Enceladus’ ocean, thanks to those fissures, which proceed to widen and slender over time.

“Since it’s thanks to those fissures that we have now been in a position to pattern and examine Enceladus’ subsurface ocean, which is beloved by astrobiologists, we thought it was essential to know the forces that shaped and sustained them,” the researcher mentioned. “Our modeling of the bodily results skilled by the moon’s icy shell factors to a probably distinctive sequence of occasions and processes that would enable for these distinctive stripes to exist.”

The analysis has been revealed within the scientific journal Nature Astronomy.


Enceladus continues to fascinate researchers. Earlier this 12 months, researchers decided its ocean is probably going 1 billion years outdated, putting it within the candy spot for supporting life. Final 12 months, researchers acknowledged that that they had discovered the “constructing blocks” for all times on Enceladus, having found advanced natural molecules.

In 2017, NASA discovered the presence of hydrogen in its ambiance, one thing Linda Spilker, Cassini venture scientist at NASA’s Jet Propulsion Laboratory, mentioned on the time might be significant.

“It might be a possible supply for power from any microbes,” Spilker mentioned on the time. “We now know that Enceladus has nearly all the elements you would wish for all times right here on Earth.”

Enceladus shouldn’t be the one celestial satellite tv for pc of Saturn to intrigue scientists. In June, NASA introduced the most recent mission in its New Frontiers program. Often called Dragonfly, the mission will discover Saturn’s largest moon, Titan, which might probably host extraterrestrial life.


Cisco Ramon
Cisco Ramon is Science expert. He is a science enthusiastic from his childhood day. To live his lofe he has choosen to be a science journalist and started his careen with Trevino to provide all the latest news from science world.


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