Your dog remembers more than you might think. A new study that tested the memory of man's best friend found that dogs exhibit something akin to episodic memory -- a process that's been well documented in humans, but difficult to prove in other animals. In experiments, the dogs were able to recall human actions even when they weren't expecting to be tested on what they observed, according to a report published Wednesday in the journal Current Biology. The findings show that episodic memory, thought to be linked to self-awareness, may extend well beyond humans to species outside of the primate lineage. Scientists have long wondered whether other animals have something like episodic memory, which allows us to recall specific past events even though they may not have been particularly important when they happened.

But if, as they say in this electoral season, you're looking to "grow your base," exercising emotional intelligence -- expressing empathy, checking your emotions in a bid to avoid conflict, and investing in personal relationships -- is a strategy that beats narcissism over the long term. A new exploration of how we make friends and influence people rigorously measured the emergence of popularity in small groups -- first-year college students organized into 15 study groups of about 20 in Poland. In the first week of their assignment to a group and then again three months later, 170 of the freshmen named the person or people they most liked in their group. Upon recruitment into the study, each participant completed standard inventories assessing their narcissistic personality traits and gauging their emotional intelligence. The findings: When a group of strangers is thrown together, individuals who score high on narcissism enjoy an early surge of admiration, recognition and friendship among their peers.

Not every scientific study can be about weighty topics, like gravity waves or gene editing. Sometimes you can gain a true scientific insight by discovering that mammals of vastly different sizes require roughly the same amount of time to empty their bladders, or by noticing that people who speak 10 disparate languages all came up with a version of the word "Huh." These awards are bestowed every fall by the editors of the Annals of Improbable Research. There are 10 winners in a range of categories, which typically include fields like physics, neuroscience and mathematics (but which also may include entomology, safety engineering, fluid dynamics or acoustics). The prize-winning scholarship may sound silly, but that doesn't mean it's trivial.

Call it artificial intelligence with a human touch. This week, two California universities separately announced new centers devoted to studying the ways in which AI can help humanity. USC's Viterbi School of Engineering and its School of Social Work said Wednesday that they had joined forces to launch the Center on Artificial Intelligence for Social Solutions. A day earlier, UC Berkeley unveiled its newly minted Center for Human-Compatible Artificial Intelligence. Then on Thursday, a Stanford-led initiative to study the future of artificial intelligence in the next century released a report detailing the effect artificial intelligence could have on urban life by 2030.

PARIS – Scientists Wednesday announced the discovery of an Earth-sized planet orbiting the star nearest our Sun, opening up the glittering prospect of a habitable world that may one day be explored by robots. Named Proxima b, the planet is in a "temperate" zone compatible with the presence of liquid water -- a key ingredient for life. The findings, based on data collected over 16 years, were reported in the peer-reviewed journal Nature. "We have finally succeeded in showing that a small-mass planet, most likely rocky, is orbiting the star closest to our solar system," said co-author Julien Morin, an astrophysicist at the University of Montpellier in southern France. "Proxima b would probably be the first exoplanet visited by a probe made by humans," he told AFP.