Past Earth, there are possible different oceans in our photo voltaic system.

Planetary scientists suspect Jupiter’s cracked, ice-blanketed moon Europa harbors a very voluminous sea, some 40 to 100 miles deep. Now, for simply the third time ever, a spacecraft flew by the icy moon, swooping solely 219 miles from Europa’s floor. The opposite two flybys occurred over twenty years in the past. NASA’s Juno spacecraft, well-known for its dazzling views of Jupiter’s roiling clouds, captured a number of the clearest photographs of Europa ever seen, which you’ll see under.

However that is not all. Juno’s specialised devices penetrated by means of components of Europa’s ice, which is a few 10 to fifteen miles thick. This unprecedented knowledge will likely be parsed by NASA and different researchers to disclose what lies within the icy shell, like potential pockets of water. So keep tuned, within the coming months, for what NASA discovered.

“Europa is of unbelievable curiosity — a excessive precedence goal for science,” Scott Bolton, the Juno mission’s precept investigator, informed Mashable.

Life thrives in Earth’s salty oceans. There is definitely no proof of life on Europa, but it surely might harbor environments that host life (as we all know it). In different phrases, this moon may very well be a “liveable” world in area.

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“It is considered one of few locations that doubtlessly has the situations for habitability,” Bolton emphasised. Bolton works on the Southwest Analysis Institute, a analysis group that usually companions with NASA.

NASA launched its first official picture from this shut flyby on Sept. 29. It exhibits Europa’s wild, icy, cracked crust in a area close to the equator dubbed “Annwn Regio.” The terrain is rugged and has been repeatedly fractured aside. Slushy ice, maybe equipped from comparatively hotter areas under, might have stuffed these cracks.

a view of Europa's icy shell

The brand new view of Europa taken by the Juno spacecraft on Sept. 29, 2022.
Credit score: NASA / JPL-Caltech / SWRI / MSSS

“It’s very early within the course of, however by all indications Juno’s flyby of Europa was a fantastic success,” Bolton mentioned in an announcement when the primary picture was launched. “This primary image is only a glimpse of the exceptional new science to return from Juno’s complete suite of devices and sensors that acquired knowledge as we skimmed over the moon’s icy crust.”

What’s extra, all the imagery captured by Juno is made out there for the general public — extra particularly “citizen scientists” with spectacular photograph expertise and a eager curiosity in astronomy — to course of. Just under is a picture tweeted out by skilled imaging processor Jason Terry. And below that may be a “uncooked” unprocessed Europa picture that NASA posted on-line.

Jupiter's moon Europa

An unprocessed NASA picture of Jupiter’s moon Europa.
Credit score: NASA / SwRI / MSSS

These new close-up photographs are like a treasure trove for planetary scientists. Earlier than, they solely had knowledge from two flybys from the Galileo spacecraft, years in the past. Now there is a third load of knowledge. “It is an enormous, big leap,” Bolton mentioned.

What comes subsequent, apart from extra picture releases, will likely be observations from Juno’s microwave radiometer, an instrument that may penetrate Europa’s thick ice. What’s down there? There may very well be comparatively hotter areas harboring cavities filled with water, famous Bolton.


“Is there life elsewhere?”

“I think if there’s water it will stick out like a sore thumb to us,” he mentioned.

The query that looms massive is whether or not any life may dwell on this water, or within the seas sloshing below the ice. We do not know. We’re removed from any solutions. However that is one of many engaging parts of exploration.

“One of many objectives of exploring the photo voltaic system and universe is to see if we’re alone,” Bolton informed Mashable. “Is there life elsewhere?”

This story will likely be up to date with extra Europa photographs as they’re launched.