Book Review: Murder on a Jovian Colony

The Mimicking of Known Successes, by Malka Older (Tor)

I love the premise of this novella: a murder mystery set on a colony circling Jupiter, the last remnants of human civilization after the collapse of Earth’s ecology.  Against the backdrop of the storm-wracked gas giant, linked platforms grow crops, house communities, and provide nooks of academic research aimed at devising the perfect ecology once it is safe to re-seed Earth with life. Cool, huh?

When a man goes missing and it’s feared he has either jumped or been pushed off a platform, to fall endlessly in Jupiter’s atmosphere, the case falls to Investigator Mossa. This leads her to her old lover, Pleiti, a scholar of Earth’s pre-collapse ecosystems. The two of them are on the chase while exploring the resurrection of their old relationship. There are lots of plot twists and revelations along the way.

Despite the wildly exotic setting, I struggled to connect with the characters and their motivations.  Mossa is enigmatic and aloof, emotionally opaque; that’s supposed to be part of her character. The contrast with Pleiti, who is highly emotional, shows how their different strengths combine to solve the mystery. However, Mossa’s distant, intellectual approach is not limited to her own viewpoint and work. It’s hard to imagine her as having feelings about anything. This bleeds into the crux of Pleiti’s work, indeed the decision the entire Jovian colony must make: what is the best way to design a rejuvenated Earth ecology? Put together known species, available in platform zoos, and let adaptation create new species and relationships, taking the risk that the combinations will fail? This approach would save enormous amounts of time, hastening the return to Earth. Or meticulously craft a system that replicates what thrived on Earth (“the mimicking of known successes” in the title), even though you can never be certain you got it right? And that it would take far longer, risking the extinction of preserved samples?

It’s a fascinating question, and the division of opinions drives the murder plot. Or ought to, because it’s presented as a distant, academic discussion, as dry and dusty as the university chambers. Therein lies my issue with this book. There’s too much relative emotional weight on the will-they-won’t-they relationship and almost none on the question upon which rests the fate of a future return to Earth. Nevertheless, the setting is fresh and original, the prose is clear, and the plot moves right along.

 

Martian Sand and Other Wonders

Ancient Asteroid Impact Exposes the Moon's Interior

"The mantle of the Earth is made mostly of a mineral called olivine, and the assumption is usually that all planets are like the Earth," said Jay Melosh, Distinguished Professor of Earth, Atmospheric and Planetary Sciences at Purdue University, who led the study. "But when we look at the spectral signature of rocks exposed deep below the moon's surface, we don't see olivine; we see orthopyroxene."

Around 4 billion years ago, an asteroid collided with the moon and created the largest and deepest impact on the moon: the South Pole-Aitken basin. The collision exposed lunar mantle in the basin and splashed up material onto the far side of the moon.

Where Does the Sand Come From?

Discovered in images from the Context Camera, this region exhibits dark material that is being eroded from dark layers in the bedrock of a semicircular depression near the boundary of the Southern highlands and the Northern lowlands. Downslope lineations support the notion that these dark sediments are derived locally, and did not accumulate here by coincidence because of the winds.

Sand grains can also roll along the ground as they are blown by the wind, and they are also jostled by other sand gains that are similarly flying across the surface. All of these repeated impacts tend to wear down the sand grains, smoothing them into a more spherical shape and breaking off small fragments that supply the vast dust deposits of Mars. This process (known as comminution) ultimately destroys sand grains and limits the length of time that the particles exist. The fact that we see active sand dunes on Mars today requires that sand particles must be resupplied to replace the grains that are lost over time. Where are the modern day sources of sand on Mars?

Best Way to Recognize Emotions in Others: Listen

Across all five experiments, individuals who only listened without observing were able, on average, to identify more accurately the emotions being experienced by others. The one exception was when subjects listened to the computerized voices, which resulted in the worst accuracy of all.

Jupiter and Two of Its Biggest Moons

Io and Europa are two of Jupiter's four Galilean moons, which are so named because famed Italian astronomer Galileo Galilei discovered them back in 1610. (The other two Galilean satellites are Callisto and Ganymede.) Io is the most volcanic object in the solar system, and astrobiologists regard the ocean-harboring Europa as one of the best bets to host life beyond Earth. 

Unusual Mountain Ahuna Mons on Asteroid Ceres

Ahuna Mons is the largest mountain on the largest known asteroid in our Solar System, Ceres, which orbits our Sun in the main asteroid belt between Mars and Jupiter. Ahuna Mons, though, is like nothing that humanity has ever seen before. For one thing, its slopes are garnished not with old craters but young vertical streaks. One hypothesis holds that Ahuna Mons is an ice volcano that formed shortly after a large impact on the opposite side of the dwarf planet loosened up the terrain through focused seismic waves. The bright streaks may be high in reflective salt, and therefore similar to other recently surfaced material such as visible in Ceres' famous bright spots.

Lift Your Eyes to the Clouds

While we on Earth have been agonizing over politics (from both sides), spacecraft Juno has been sending back amazing, awe-inspiring images from Jupiter. I think it's a good reminder of what human beings are capable of: our gift for technology, our ability to work together, and our insatiable curiosity about the universe. The space race of the 1960s, was spurred by anti-Communist fears of the Soviet Union launching missiles from orbit, but it had the consequence of boosting our engineering, mathematical, and scientific prowess that could then be focused on peacetime exploration.

After seeing (and loving) the movie Hidden Figures, I picked up the book on which it was based, by Margot Lee Shetterly. As usual, the book is deeper and more detailed -- and wider-ranging -- than the film, but both remind me of the fervor of the time. (I remember when the Soviets launched Sputnik -- my homemade Halloween costume that year was the satellite.) While I don't hold out much hope that the current strain of antipathy towards science will inspire everyone to cheer on the exploration of our solar system and beyond, I firmly believe that the upcoming generation will find the prospect thrilling. (And will want to grab on to all the math, science, and engineering courses they can!)  The awe and wonder of images like that transcends gender, race, national origin, and political affiliation. At lease I hope it does.

About 8,000 kilometers in diameter, the anticyclonic storm system was spotted in Jupiter's North North Temperate Zone in the 1990s. That makes it about half the size of an older and better known Jovian anticyclone, the Great Red Spot, but only a little smaller than planet Earth. At times taking on reddish hues, the enormous storm system is fondly known as a North North Temperate Zone Little Red Spot.