Does Jupiter’s Moon Callisto Have an Ocean? The Evidence is Mounting

Europa (L), Enceladus (M), and Callisto (R) have distinctly different surfaces, yet all likely have subsurface oceans.

Some of our Solar System’s moons have become very enticing targets in the search for life. There’s growing evidence that some of them have oceans under layers of ice and that these oceans are warm and rich in prebiotic chemistry. NASA’s Europa Clipper is on its way to examine Jupiter’s moon Europa, and the ESA’s … Read more

Are grooves on Uranus’ moon Ariel evidence for an ocean?

Uranus' moon Ariel: Gray moon-like body with bright spots and long curving canyons.

View larger. | NASA’s Voyager 2 spacecraft captured this view of Uranus’ moon Ariel on January 24, 1986. We can clearly see various canyons and grooves. Image via NASA/ Jet Propulsion Laboratory. Uranus’ moon Ariel might have a subsurface ocean, a study found last year. The ocean could be ancient or it could still exist … Read more

Is the moon still geologically active? Evidence says it’s possible

The moon may still be geologically active, judging from the way the lunar far side is wrinkling as the moon contracts. At least, that’s what planetary scientists who have discovered 266 lunar “wrinkle ridges,” say, as all of these ridges appear to have formed during the past 160 million years in the rare volcanic plains … Read more

Is the moon geologically dead? Maybe not, says new evidence

NASA’s Lunar Reconnaissance Orbiter captured this mosaic image of the far side of the moon. For the first time, scientists have found evidence for relatively recent geological activity on moon’s far side. Via NASA/ GSFC/ Arizona State University. Across the lifetimes of people alive on Earth today, scientists have assumed the moon has been a … Read more

Large Hadron Collider finds first evidence of the heaviest antimatter particle yet

The world’s most massive science experiment has done it again, detecting hints of the heaviest antimatter particle ever found. This means the Large Hadron Collider (LHC), the most powerful particle accelerator ever built, has given scientists a glimpse into conditions that existed when the universe was less than a second old. The antimatter particle is … Read more