James' World 2

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Leonard’s Comet, expected to be the brightest comet this year, should be the next sky-sighting on your bucket list. The moon has been keeping this comet washed out as it is much brighter than the space rock. There have been conflicting reports on social media over the past few days that the comet might have even disintegrated. Fear not: Leonard’s Comet is still there and was bright enough to be seen on cameras and through telescopes on Thursday, and it should remain bright enough to be seen over the next few weeks. When the solar system formed, not every piece of rock and ice made its way into a planet. These leftover pieces became comets, which now orbit the sun. The celestial rocks range from just a few miles to tens of miles wide. When one of the floating rocks gets close to the sun, it heats up enough that it spews gas and dust, leaving behind that familiar tail in the sky. 

What is Leonard’s Comet?

Astronomer Gregory J. Leonard discovered this comet in early 2021, later named for him, at the Mount Lemmon Observatory in the Santa Catalina Mountains, northeast of Tucson, Arizona. When Leonard spotted the comet, it was extremely dim, out near Jupiter, and was just starting to release it’s heated up gas and dust. Leonard’s comet has spent roughly 35,000 years getting closer to our sun and has finally made its way closer to Earth’s neck of the universe. It’s expected to be the brightest comet of the year. 

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Leonard’s comet, not pictured, has spent roughly 35,000 years getting closer to our sun and has finally made its way closer to Earth’s neck of the universe. It’s expected to be the brightest comet of the year. Hans/Pixabay

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About 5,300 years ago, an ancient civilization emerged in the east of China, building a brilliant city the likes of which had perhaps never been seen before in all of Asia – nor possibly even the whole world.

The surviving traces of the Liangzhu culture, which rose up along the banks of the Yangtze River Delta in China’s east, are a testament to what this unique Neolithic society was capable of in the final stretches of the Stone Age.

The archaeological ruins of Liangzhu City demonstrate numerous signs of social, cultural, and technological advancements for the period, especially in agriculture and aquaculture.

Sophisticated architectural features, meanwhile – including clever hydraulic engineering that enabled canals, dams, and water reservoirs – led to allusions of Liangzhu being a Neolithic “Venice of the East”.

None of these marvels would last, however.

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Detail from ancient Liangzhu jade carving. (Liangzhu Archeology Ruins Management Bureau)

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On Sunday morning, Dec. 7, 1941, Mess Attendant 2nd Class Jesus Garcia, stationed aboard the USS Oklahoma, was preparing to go to mass.

Just before 8 a.m., Japanese dive bombers launched their surprise attack on Pearl Harbor and the battleship, crippled by torpedoes, began to capsize. Some crew members jumped into a sea of burning oil to escape or crawled across mooring lines to safety.

In the ensuing hours, rescuers freed others trapped inside by drilling through the hull and hatches. But roughly half the crew of 864 men were entombed, some of the first American casualties of World War II. Among them was Garcia, 21, who had joined the Navy on the U.S. territory of Guam.

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When I first adopted Lucas nine years ago from a cat rescue organization in Washington, D.C., his name was Puck. “Because he’s mischievous,” his foster mother said. Although we changed the name, her analysis proved correct. Unlike his brother Tip, whom I also adopted, a gray cat with white paws and an Eeyore-ish dour doofy sweetness, Lucas was from the start a fierce black fireball, a menace to stray toes or blanket fringes or loose items on tabletops. He was my alarm clock in the morning with his habit of knocking my hairbrush, deodorant, and earrings box off my bureau until I got up to feed him.

Then, almost four years ago, my husband and I had a child. Lucas, no longer the most important small creature in the apartment, retreated to the top shelf of his cat tree, where he would lie all day, staring morosely over the edge. When he did want attention, his solicitations became aggressive. Instead of waiting until 7 a.m. to start knocking things off of the bureau, he started hopping up there at 4 a.m. We closed the bedroom door and were still woken up at 4 every day by Lucas rattling the doorknob or hurling the weight of his 13-pound body against it. At mealtimes, he would gobble down his food and then shove Tip out of the way to eat Tip’s food. He started marking the carpets in our living room and my son’s room, and his play with Tip turned more violent too.

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Illustration by Jackie Ferrentino.

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Among the smartest animals on Earth, octopuses are unique for being utterly weird in their evolutionary path to developing those smarts. Philosopher Peter Godfrey-Smith has called the octopus the closest thing to an alien that we might encounter on Earth, and their bizarre anatomy speaks to this: An octopus’ mind isn’t concentrated in its head but spread throughout its body. Their tentacles are packed with neurons that endow each one with a hyperaware sense of touch, as well as the ability to smell and taste. Marine biologists have remarked that each tentacle sometimes seems like it has a mind of its own. Every octopus is a tactile thinker, constantly manipulating its surroundings with a body so soft it almost seems liquid. 

All of these things are surprising, at least in theory, because scientists have learned to associate intelligence with vertebrates and a tendency to socialize. Octopuses are either asocial or partially social — and all of them are invertebrates. This raises an obvious question: How did octopuses become so smart?

Scientists know surprisingly little about this subject, as a great deal of the research on octopus neuroanatomy up to this point has focused on one species, the European common octopus (Octopus vulgaris) — which has about as many neurons in its body as a dog. Thanks to the scientists behind a new study in the scientific journal Current Biology, we now know more about the neural wiring of four very different types of octopuses (or, in one case, octopus-like animals): the vampire squid (Vampyroteuthis infernalis), which dwells in the deep sea and is technically neither an octopus nor a squid; the blue-lined octopus (Hapalochlaena fasciata), a venomous creature that keeps to itself while roaming the ocean at night; and “two diurnal reef dwellers,” Abdopus capricornicus and Octopus cyanea (also known as the day octopus). 

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Octopus (Getty Images/sko)

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