I hope everyone survived the weekend shopping experience and no one was eaten by ravening bands of deal-hunting nomads as they trekked through Macy's, or whatever people who actually go outside on Black Friday have to endure. Things are mostly quiet here at the Ars Orbiting HQ—the gift shop on the mess deck is still selling mugs and other merch , if anyone wants some Ars stuff!—but the e-commerce communications panel is beeping and it says we've got more deals to show you guys for Cyber Monday!

Cyber Monday is the thing that happens after Black Friday, where the deals keep going past the weekend and erupt into the next week, like some kind of out-of-control roller coaster of capitalism careening off the rails and into the crowd. Headphones! Power stations! Tablets! More board games! We've got so many things for you to buy!

A couple of quick notes: First, we're going to continue updating this list throughout Monday as things change, so if you don't see anything that tickles your fancy right now, check back in a few hours! Additionally, although we're making every effort to keep our prices accurate, deals are constantly shifting around, and an item's actual price might have drifted from what we list. Caveat emptor and all that.

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I hope everyone survived the weekend shopping experience and no one was eaten by ravening bands of deal-hunting nomads as they trekked through Macy's, or whatever people who actually go outside on Black Friday have to endure. Things are mostly quiet here at the Ars Orbiting HQ—the gift shop on the mess deck is still selling mugs and other merch , if anyone wants some Ars stuff!—but the e-commerce communications panel is beeping and it says we've got more deals to show you guys for Cyber Monday!

Cyber Monday is the thing that happens after Black Friday, where the deals keep going past the weekend and erupt into the next week, like some kind of out-of-control roller coaster of capitalism careening off the rails and into the crowd. Headphones! Power stations! Tablets! More board games! We've got so many things for you to buy!

A couple of quick notes: First, we're going to continue updating this list throughout Monday as things change, so if you don't see anything that tickles your fancy right now, check back in a few hours! Additionally, although we're making every effort to keep our prices accurate, deals are constantly shifting around, and an item's actual price might have drifted from what we list. Caveat emptor and all that.

Read full article

Comments

I hope everyone survived the weekend shopping experience and no one was eaten by ravening bands of deal-hunting nomads as they trekked through Macy's, or whatever people who actually go outside on Black Friday have to endure. Things are mostly quiet here at the Ars Orbiting HQ—the gift shop on the mess deck is still selling mugs and other merch , if anyone wants some Ars stuff!—but the e-commerce communications panel is beeping and it says we've got more deals to show you guys for Cyber Monday!

Cyber Monday is the thing that happens after Black Friday, where the deals keep going past the weekend and erupt into the next week, like some kind of out-of-control roller coaster of capitalism careening off the rails and into the crowd. Headphones! Power stations! Tablets! More board games! We've got so many things for you to buy!

A couple of quick notes: First, we're going to continue updating this list throughout Monday as things change, so if you don't see anything that tickles your fancy right now, check back in a few hours! Additionally, although we're making every effort to keep our prices accurate, deals are constantly shifting around, and an item's actual price might have drifted from what we list. Caveat emptor and all that.

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What happens when a gargantuan cloud of gas swallows a pair of monster black holes with their own appetites? Feasting on the gas can cause some weird (heavenly) bodily functions.

AT 2021hdr is a binary supermassive black hole (BSMBH) system in the center of a galaxy 1 billion light-years away, in the Cygnus constellation. In 2021, researchers observing it using NASA’s Zwicky Transient Facility saw strange outbursts that were flagged by the ALerCE (Automatic Learning for the Rapid Classification of Events) team.

This active galactic nucleus (AGN) flared so brightly that AT 2021hdr was almost mistaken for a supernova. Repeating flares soon ruled that out. When the researchers questioned whether they might be looking at a tidal disruption event—a star being torn to shreds by the black holes—something was still not making sense. They then compared observations they made in 2022 using NASA’s Neil Gehrels Swift Observatory to simulations of something else they suspected: a tidal disruption of a gas cloud by binary supermassive black holes. It seemed they had found the most likely answer.

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What happens when a gargantuan cloud of gas swallows a pair of monster black holes with their own appetites? Feasting on the gas can cause some weird (heavenly) bodily functions.

AT 2021hdr is a binary supermassive black hole (BSMBH) system in the center of a galaxy 1 billion light-years away, in the Cygnus constellation. In 2021, researchers observing it using NASA’s Zwicky Transient Facility saw strange outbursts that were flagged by the ALerCE (Automatic Learning for the Rapid Classification of Events) team.

This active galactic nucleus (AGN) flared so brightly that AT 2021hdr was almost mistaken for a supernova. Repeating flares soon ruled that out. When the researchers questioned whether they might be looking at a tidal disruption event—a star being torn to shreds by the black holes—something was still not making sense. They then compared observations they made in 2022 using NASA’s Neil Gehrels Swift Observatory to simulations of something else they suspected: a tidal disruption of a gas cloud by binary supermassive black holes. It seemed they had found the most likely answer.

Read full article

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What happens when a gargantuan cloud of gas swallows a pair of monster black holes with their own appetites? Feasting on the gas can cause some weird (heavenly) bodily functions.

AT 2021hdr is a binary supermassive black hole (BSMBH) system in the center of a galaxy 1 billion light-years away, in the Cygnus constellation. In 2021, researchers observing it using NASA’s Zwicky Transient Facility saw strange outbursts that were flagged by the ALerCE (Automatic Learning for the Rapid Classification of Events) team.

This active galactic nucleus (AGN) flared so brightly that AT 2021hdr was almost mistaken for a supernova. Repeating flares soon ruled that out. When the researchers questioned whether they might be looking at a tidal disruption event—a star being torn to shreds by the black holes—something was still not making sense. They then compared observations they made in 2022 using NASA’s Neil Gehrels Swift Observatory to simulations of something else they suspected: a tidal disruption of a gas cloud by binary supermassive black holes. It seemed they had found the most likely answer.

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If you aren’t yet worried about the multitude of ways you inadvertently inflict suffering onto other living creatures, you will be after reading The Edge of Sentience by Jonathan Birch . And for good reason. Birch, a Professor of Philosophy at the London College of Economics and Political Science, was one of a team of experts chosen by the UK government to establish the Animal Welfare Act (or Sentience Act) in 2022—a law that protects animals whose sentience status is unclear.

According to Birch, even insects may possess sentience, which he defines as the capacity to have valenced experiences, or experiences that feel good or bad. At the very least, Birch explains, insects (as well as all vertebrates and a selection of invertebrates) are sentience candidates: animals that may be conscious and, until proven otherwise, should be regarded as such.

Although it might be a stretch to wrap our mammalian minds around insect sentience, it is not difficult to imagine that fellow vertebrates have the capacity to experience life, nor does it come as a surprise that even some invertebrates, such as octopuses and other cephalopod mollusks (squid, cuttlefish, and nautilus) qualify for sentience candidature. In fact, one species of octopus, Octopus vulgaris , has been protected by the UK’s Animal Scientific Procedures Act (ASPA) since 1986, which illustrates how long we have been aware of the possibility that invertebrates might be capable of experiencing valenced states of awareness, such as contentment, fear, pleasure, and pain.

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If you aren’t yet worried about the multitude of ways you inadvertently inflict suffering onto other living creatures, you will be after reading The Edge of Sentience by Jonathan Birch . And for good reason. Birch, a Professor of Philosophy at the London College of Economics and Political Science, was one of a team of experts chosen by the UK government to establish the Animal Welfare Act (or Sentience Act) in 2022—a law that protects animals whose sentience status is unclear.

According to Birch, even insects may possess sentience, which he defines as the capacity to have valenced experiences, or experiences that feel good or bad. At the very least, Birch explains, insects (as well as all vertebrates and a selection of invertebrates) are sentience candidates: animals that may be conscious and, until proven otherwise, should be regarded as such.

Although it might be a stretch to wrap our mammalian minds around insect sentience, it is not difficult to imagine that fellow vertebrates have the capacity to experience life, nor does it come as a surprise that even some invertebrates, such as octopuses and other cephalopod mollusks (squid, cuttlefish, and nautilus) qualify for sentience candidature. In fact, one species of octopus, Octopus vulgaris , has been protected by the UK’s Animal Scientific Procedures Act (ASPA) since 1986, which illustrates how long we have been aware of the possibility that invertebrates might be capable of experiencing valenced states of awareness, such as contentment, fear, pleasure, and pain.

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If you aren’t yet worried about the multitude of ways you inadvertently inflict suffering onto other living creatures, you will be after reading The Edge of Sentience by Jonathan Birch . And for good reason. Birch, a Professor of Philosophy at the London College of Economics and Political Science, was one of a team of experts chosen by the UK government to establish the Animal Welfare Act (or Sentience Act) in 2022—a law that protects animals whose sentience status is unclear.

According to Birch, even insects may possess sentience, which he defines as the capacity to have valenced experiences, or experiences that feel good or bad. At the very least, Birch explains, insects (as well as all vertebrates and a selection of invertebrates) are sentience candidates: animals that may be conscious and, until proven otherwise, should be regarded as such.

Although it might be a stretch to wrap our mammalian minds around insect sentience, it is not difficult to imagine that fellow vertebrates have the capacity to experience life, nor does it come as a surprise that even some invertebrates, such as octopuses and other cephalopod mollusks (squid, cuttlefish, and nautilus) qualify for sentience candidature. In fact, one species of octopus, Octopus vulgaris , has been protected by the UK’s Animal Scientific Procedures Act (ASPA) since 1986, which illustrates how long we have been aware of the possibility that invertebrates might be capable of experiencing valenced states of awareness, such as contentment, fear, pleasure, and pain.

Read full article

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