Latest news with #Callisto
Yahoo
04-06-2025
- Business
- Yahoo
Speedata raises $44m in Series B funding round
Israel-based startup Speedata has secured $44m (NIS154m) in a Series B funding round to advance its chip technology tailored for data analytics workloads. The latest investment brings the company's total capital raised to $114m. The round saw participation from investors including Walden Catalyst Ventures, 83North, Koch Disruptive Technologies, Pitango First, and Viola Ventures. Strategic investors also joined the round, among them Lip-Bu Tan, CEO of Intel and managing partner at Walden Catalyst Ventures, and Eyal Waldman, co-founder and former CEO of Mellanox Technologies. Speedata is known for its Analytics Processing Unit (APU), which is designed to significantly accelerate big data analytic workloads across various industries. Concurrently, the company also announced the launch of a new chip aimed at enhancing big data analytics. The APU, powered by Speedata's custom-designed Callisto chip, addresses longstanding bottlenecks in data pipelines, offering substantial acceleration for complex analytics tasks. The chip has been tested by companies in sectors such as finance, healthcare, insurance, and AdTech, the company said. The newly introduced C200 PCIe card features a PCIe Gen5 x16 interface and is designed to be compatible with a range of server environments. It is integrated with Speedata's Dash software stack for Apache Spark, allowing job redirection to the APU without requiring modifications to existing applications or infrastructure. Adi Gelvan, Speedata's incoming CEO, said: 'Everyone knows that AI inference will transform our lives, but none of that happens without data analytics first. 'To paraphrase the well-known saying: 'Diamonds in, diamonds out' – in other words, before AI value can be maximised, the data must be ready. Speedata's APU is the missing link, unlocking scalable, real-time analytics that power everything from business intelligence to medical breakthroughs to next-gen AI applications. It's the catalyst AI needed to get to the next era.' "Speedata raises $44m in Series B funding round" was originally created and published by Verdict, a GlobalData owned brand. The information on this site has been included in good faith for general informational purposes only. It is not intended to amount to advice on which you should rely, and we give no representation, warranty or guarantee, whether express or implied as to its accuracy or completeness. You must obtain professional or specialist advice before taking, or refraining from, any action on the basis of the content on our site. 擷取數據時發生錯誤 登入存取你的投資組合 擷取數據時發生錯誤 擷取數據時發生錯誤 擷取數據時發生錯誤 擷取數據時發生錯誤
The Independent
01-05-2025
- Science
- The Independent
Stargazing in May: A tale of two bears
Once upon a time, back in the golden age of gods and humans, the great god Jupiter caught sight of a nymph named Callisto. Her name means "the most beautiful," and Jupiter was smitten. But Callisto was a follower of Diana, goddess of the hunt, and sworn to chastity. That didn't deter Jupiter. He changed himself into the shape of Diana and lay down beside Callisto – who didn't realise the deception. When Callisto gave birth to a son, Arcas, she was expelled from Diana's group. Worse still, Jupiter's jealous wife Juno was on her trail. To protect Callisto, Jupiter turned her into a bear. Years passed, and Arcas – now a young man – stumbled across a bear while hunting in the woods. As he drew back his bow to bag this fine prize, Jupiter intervened to prevent the impending matricide: he turned Arcas into a bear, too, swung both ursines around by the stumpy tales and flung them into the sky, where they became the constellations we know to this day as the Great Bear (Ursa Major) and the Little Bear (Ursa Minor). In each constellation, four stars mark the bear's body, fainter stars (not shown on my star chart) depict their heads and legs, and a curve of three stars trace their long fluffy tails. And if you say – hey, bears don't have long tails! – then consider that when you swing a heavy beast around by its stump of a tail, then something has got to give… This account of the origin of the two celestial bears comes from the Roman poet Ovid, based on myths of the ancient Greeks. But the connection of Ursa Major with a bear goes back millennia earlier, to a bear-cult that was widespread across Siberia. Some astronomers think that Ursa Major is our oldest constellation, dating back 30,000 years to the time when humans crossed from Siberia into North America, because Native North American tribes also associate this star pattern with a bear. In their legends, the four stars in a rectangle depict the bear itself, while the three stars of the "tail" are a trio of hunters tracking it down. The seven bright stars in Ursa Major are the most recognisable star pattern in the sky, along with Orion. In Britain, they traditionally form the Plough; though – with this agricultural implement now obsolete – many people call it the Saucepan. In contemporary North America it's the Big Dipper, with its companion Ursa Minor denoted as the Little Dipper. Look closely at the handle of the Saucepan (or Big Dipper) and you'll see that the middle star – Mizar – has a fainter companion, called Alcor. It's one of the few double stars that you can split with the naked eye. Mizar and Alcor are often called the Horse and Rider, though in the native American tradition where these stars are hunters, Alcor is the pot they are carrying to cook the bear after they've killed it. The most famous star in the Little Bear is Polaris, otherwise known as the Pole Star or the North Star. As its name suggests, Polaris lies directly over the Earth's North Pole, so it always lies to the north in the sky as our planet rotates under it. Locate the Pole Star by drawing a line from the two end stars of the Plough (see the star chart), and you know you facing due north. As millennia pass, the Earth's axis swings slowly around in space, so Polaris was not always the star above the spinning planet. When the Greek astronomer Ptolemy drew up the definitive list of constellations that we largely use today, around AD 150, the north pole of the sky lay about half-way along Ursa Minor. Instead of focusing on one star, Greek astronomers used the whole star-pattern to indicate north. Greek navigators had an alternative name for the Little Bear – Kynosoura – which literally means "dog's tail" and must derive from some other ancient constellation-makers now lost to history. Because Kynosoura was the focus for both astronomers and navigators, the word cynosure has passed down to us as something that's the centre of attention, as in "the Mona Lisa is the cynosure of all eyes in the Louvre." What's Up After blazing in our evening sky since last autumn, Jupiter is now on its way out. You can catch the giant planet low in the north-west after sunset, but it's slipping down into the twilight glow. A narrow crescent Moon lies above Jupiter on 28 May. Mars is gradually fading as the faster-moving Earth pull away from the Red Planet, and it's now fainter than some of the stars in the evening sky. You'll find Mars between Regulus, in Leo, and the twin stars Castor and Pollux in Gemini. The Moon is nearby on 3 May; and on the next evening Mars brushes across the top of the star cluster Praesepe (popularly known as the Beehive): a memorable sight in binoculars or a small telescope. To the south, Leo's leading light Regulus forms a large triangle with another bluish-white star – Spica, in Virgo – and orange Arcturus in Boötes. The dim sprawling constellations of Hercules and Ophiuchus are rising in the east. There's more action in the morning sky. First, if you're up early on 6 May, watch out for particles from Halley's Comet speeding across the heavens and burning up as shooting stars, in the Eta Aquarid meteor shower. And Venus is putting on a brilliant show as the Morning Star, rising around 4am in the east. To its lower right – and 200 times fainter – you'll find Saturn. On the mornings of 22, 23 and 24 May the crescent Moon moves past these two planets as it heads towards the month's New Moon. Diary 3 May: Moon near Mars 4 May, 2.52pm: First Quarter Moon; Mars very near Praesepe 5 May: Moon near Regulus 6 May, before dawn: Maximum of Eta Aquarid meteor shower 9 May: Moon near Spica 12 May, 5.56pm: Full Moon 21 May, 0.59am: Last Quarter Moon 22 May, before dawn: Moon near Saturn 23 May, before dawn: Moon between Venus and Saturn 24 May, before dawn: Moon near Venus 27 May, 4.02am: New Moon
The Independent
08-04-2025
- Science
- The Independent
Saturn has 128 more moons than astronomers previously thought
Earlier this week, Saturn gained a whopping 128 new official moons, as the International Astronomical Union recognised discoveries from a team of astronomers led by Edward Ashton at the Academia Sinica in Taiwan. The sixth planet from the Sun now has a grand total of 274 moons, the most of any planet in the Solar System. The discovery has raised a lot of questions. How do you spot moons, and why hadn't anybody seen these ones already? Doesn't Jupiter have the most moons? What are they going to call all these moons? Are there more out there? And what exactly makes something a moon, anyway? These new discoveries cement Saturn's place as the winner of the Solar System's moon competition, with more confirmed moons than all of the other planets combined. But it hasn't always been this way. Jupiter's four largest moons – Io, Europa, Ganymede and Callisto – were the first ever discovered orbiting another planet. They were spotted by Galileo Galilei more than 400 years ago, in 1610. Saturn's first known moon, Titan, was discovered by Dutch astronomer Christiaan Huygens 45 years later. The new batch of 128 moons was discovered by stacking images from the Canada France Hawaii telescope. Some of Saturn's other moons were discovered by space voyages, and some during what are called 'ring-plane crossings'. When the Voyager 1 spacecraft passed by Saturn, it took images that were used to discover the moon Atlas. The Cassini Mission later discovered seven new Saturnian moons. A ring-crossing is where Saturn's rings seem to disappear from our point of view here on Earth. This is when Saturn is at just the right angle so we're looking at the rings exactly side-on (that is, when we can only see the edge of the rings). Titan was discovered during a ring-plane crossing, and so were 12 other moons. Saturn's rings will be edge-on twice in 2025, in March and November. From 2019 to 2023, Jupiter and Saturn were fighting for first place in the moon race. In 2019, Saturn surpassed Jupiter with the discovery of 20 new moons. This took the count to 82 for Saturn and 79 for Jupiter. Just a few years later, in February 2023, Jupiter took the lead with 12 new moons, beating Saturn's 83 moons at the time. Only a short time later, still in 2023, the same astronomers who discovered the recent 128 moons discovered 62 moons orbiting Saturn. This placed the ringed planet firmly in the lead. Elsewhere in the Solar System, Earth has one moon, Mars has two, Jupiter has 95, Uranus has 28 and Neptune has 16, for a total of 142 moons. We only need to discover ten more moons around Saturn to give it double the number of all the other planets combined. The newly discovered moons are all small. Each one is only a few kilometres across. If something that small can be a moon, what really counts as a moon? NASA tells us 'naturally formed bodies that orbit planets are called moons', but even asteroids can have moons. We crashed a spacecraft into an asteroid's moon in 2022. Earth has had a few mini-moons, some only a couple of metres in size. The line of what is and isn't a moon is a bit hazy. Moons orbiting planets in the Solar System can be either 'regular' or 'irregular'. The new moons are all irregular. Regular moons are formed around a planet at the same time as the planet itself forms. Irregular moons are thought to be small planets (planetesimals) that are captured by a planet as it finishes forming. They are then broken into pieces by collisions. Regular moons tend to orbit their planets in nice, circular orbits around the equator. Irregular moons typically orbit in big ovals further away from planets, and at a range of angles. Saturn has 24 regular moons and 250 irregular moons. Studying these moons can tell us about how moons form, and reveal clues about how the Solar System formed and evolved. Saturn's rings are made of small chunks of ice and rock. Astronomers think they formed out of pieces of comets, asteroids and moons that were torn apart by Saturn's gravity. So for Saturn in particular, irregular moons can tell us more about the formation of its beautiful rings. Names of astronomical objects are governed by the International Astronomical Union (IAU). Originally, all moons in the Solar System were given names from Greco-Roman mythology. But the large number of moons, particularly of Saturn and Jupiter, means the IAU has expanded to giants and gods from other mythology. And it's all about the details. If binary moons are discovered, they are required to be given names of twins or siblings. Saturn's first seven moons were given numbers instead of names. In 1847, John Herschel named them after the Greek Titans. After they ran out of titans and Greek mythological giants, they expanded the naming system to include Inuit and Gallic gods and Norse giants. Discoverers get to suggest names for moons, and the names they suggest are given priority by the IAU. In the past, there have been competitions to name new moons of Jupiter and Saturn. With 128 new moons for Saturn, it might take a while to come up with names that follow the IAU rules. Maybe we'll even see the addition of different mythologies. We'll have to wait and see. Until then, each moon has a name made of a string of numbers and letters, such as 'S/2020 S 27'. Without a solid definition of what a moon is, it's hard to say when (or if) we will ever finish finding them. Everyone agrees we shouldn't call every single chunk of rock in Saturn's rings a moon, but exactly where to draw the line isn't clear. That said, there is probably a limit to the number of moon-like objects astronomers are likely to want to add to the list. Edward Ashton, who led the discovery of the new moons, doesn't think we'll be finding too many new moons until our technology improves.
The Independent
23-03-2025
- Science
- The Independent
Astronomers stunned to find Saturn has 128 more moons in rare discovery
Earlier this week, Saturn gained a whopping 128 new official moons, as the International Astronomical Union recognised discoveries from a team of astronomers led by Edward Ashton at the Academia Sinica in Taiwan. The sixth planet from the Sun now has a grand total of 274 moons, the most of any planet in the Solar System. The discovery has raised a lot of questions. How do you spot moons, and why hadn't anybody seen these ones already? Doesn't Jupiter have the most moons? What are they going to call all these moons? Are there more out there? And what exactly makes something a moon, anyway? These new discoveries cement Saturn's place as the winner of the Solar System's moon competition, with more confirmed moons than all of the other planets combined. But it hasn't always been this way. Jupiter's four largest moons – Io, Europa, Ganymede and Callisto – were the first ever discovered orbiting another planet. They were spotted by Galileo Galilei more than 400 years ago, in 1610. Saturn's first known moon, Titan, was discovered by Dutch astronomer Christiaan Huygens 45 years later. The new batch of 128 moons was discovered by stacking images from the Canada France Hawaii telescope. Some of Saturn's other moons were discovered by space voyages, and some during what are called 'ring-plane crossings'. When the Voyager 1 spacecraft passed by Saturn, it took images that were used to discover the moon Atlas. The Cassini Mission later discovered seven new Saturnian moons. A ring-crossing is where Saturn's rings seem to disappear from our point of view here on Earth. This is when Saturn is at just the right angle so we're looking at the rings exactly side-on (that is, when we can only see the edge of the rings). Titan was discovered during a ring-plane crossing, and so were 12 other moons. Saturn's rings will be edge-on twice in 2025, in March and November. From 2019 to 2023, Jupiter and Saturn were fighting for first place in the moon race. In 2019, Saturn surpassed Jupiter with the discovery of 20 new moons. This took the count to 82 for Saturn and 79 for Jupiter. Just a few years later, in February 2023, Jupiter took the lead with 12 new moons, beating Saturn's 83 moons at the time. Only a short time later, still in 2023, the same astronomers who discovered the recent 128 moons discovered 62 moons orbiting Saturn. This placed the ringed planet firmly in the lead. Elsewhere in the Solar System, Earth has one moon, Mars has two, Jupiter has 95, Uranus has 28 and Neptune has 16, for a total of 142 moons. We only need to discover ten more moons around Saturn to give it double the number of all the other planets combined. The newly discovered moons are all small. Each one is only a few kilometres across. If something that small can be a moon, what really counts as a moon? NASA tells us 'naturally formed bodies that orbit planets are called moons', but even asteroids can have moons. We crashed a spacecraft into an asteroid's moon in 2022. Earth has had a few mini-moons, some only a couple of metres in size. The line of what is and isn't a moon is a bit hazy. Moons orbiting planets in the Solar System can be either 'regular' or 'irregular'. The new moons are all irregular. Regular moons are formed around a planet at the same time as the planet itself forms. Irregular moons are thought to be small planets (planetesimals) that are captured by a planet as it finishes forming. They are then broken into pieces by collisions. Regular moons tend to orbit their planets in nice, circular orbits around the equator. Irregular moons typically orbit in big ovals further away from planets, and at a range of angles. Saturn has 24 regular moons and 250 irregular moons. Studying these moons can tell us about how moons form, and reveal clues about how the Solar System formed and evolved. Saturn's rings are made of small chunks of ice and rock. Astronomers think they formed out of pieces of comets, asteroids and moons that were torn apart by Saturn's gravity. So for Saturn in particular, irregular moons can tell us more about the formation of its beautiful rings. Names of astronomical objects are governed by the International Astronomical Union (IAU). Originally, all moons in the Solar System were given names from Greco-Roman mythology. But the large number of moons, particularly of Saturn and Jupiter, means the IAU has expanded to giants and gods from other mythology. And it's all about the details. If binary moons are discovered, they are required to be given names of twins or siblings. Saturn's first seven moons were given numbers instead of names. In 1847, John Herschel named them after the Greek Titans. After they ran out of titans and Greek mythological giants, they expanded the naming system to include Inuit and Gallic gods and Norse giants. Discoverers get to suggest names for moons, and the names they suggest are given priority by the IAU. In the past, there have been competitions to name new moons of Jupiter and Saturn. With 128 new moons for Saturn, it might take a while to come up with names that follow the IAU rules. Maybe we'll even see the addition of different mythologies. We'll have to wait and see. Until then, each moon has a name made of a string of numbers and letters, such as 'S/2020 S 27'. Without a solid definition of what a moon is, it's hard to say when (or if) we will ever finish finding them. Everyone agrees we shouldn't call every single chunk of rock in Saturn's rings a moon, but exactly where to draw the line isn't clear. That said, there is probably a limit to the number of moon-like objects astronomers are likely to want to add to the list. Edward Ashton, who led the discovery of the new moons, doesn't think we'll be finding too many new moons until our technology improves.
The Independent
14-03-2025
- Science
- The Independent
Astronomers find Saturn has 128 more moons in rare discovery
Earlier this week, Saturn gained a whopping 128 new official moons, as the International Astronomical Union recognised discoveries from a team of astronomers led by Edward Ashton at the Academia Sinica in Taiwan. The sixth planet from the Sun now has a grand total of 274 moons, the most of any planet in the Solar System. The discovery has raised a lot of questions. How do you spot moons, and why hadn't anybody seen these ones already? Doesn't Jupiter have the most moons? What are they going to call all these moons? Are there more out there? And what exactly makes something a moon, anyway? These new discoveries cement Saturn's place as the winner of the Solar System's moon competition, with more confirmed moons than all of the other planets combined. But it hasn't always been this way. Jupiter's four largest moons – Io, Europa, Ganymede and Callisto – were the first ever discovered orbiting another planet. They were spotted by Galileo Galilei more than 400 years ago, in 1610. Saturn's first known moon, Titan, was discovered by Dutch astronomer Christiaan Huygens 45 years later. The new batch of 128 moons was discovered by stacking images from the Canada France Hawaii telescope. Some of Saturn's other moons were discovered by space voyages, and some during what are called 'ring-plane crossings'. When the Voyager 1 spacecraft passed by Saturn, it took images that were used to discover the moon Atlas. The Cassini Mission later discovered seven new Saturnian moons. A ring-crossing is where Saturn's rings seem to disappear from our point of view here on Earth. This is when Saturn is at just the right angle so we're looking at the rings exactly side-on (that is, when we can only see the edge of the rings). Titan was discovered during a ring-plane crossing, and so were 12 other moons. Saturn's rings will be edge-on twice in 2025, in March and November. From 2019 to 2023, Jupiter and Saturn were fighting for first place in the moon race. In 2019, Saturn surpassed Jupiter with the discovery of 20 new moons. This took the count to 82 for Saturn and 79 for Jupiter. Just a few years later, in February 2023, Jupiter took the lead with 12 new moons, beating Saturn's 83 moons at the time. Only a short time later, still in 2023, the same astronomers who discovered the recent 128 moons discovered 62 moons orbiting Saturn. This placed the ringed planet firmly in the lead. Elsewhere in the Solar System, Earth has one moon, Mars has two, Jupiter has 95, Uranus has 28 and Neptune has 16, for a total of 142 moons. We only need to discover ten more moons around Saturn to give it double the number of all the other planets combined. The newly discovered moons are all small. Each one is only a few kilometres across. If something that small can be a moon, what really counts as a moon? NASA tells us 'naturally formed bodies that orbit planets are called moons', but even asteroids can have moons. We crashed a spacecraft into an asteroid's moon in 2022. Earth has had a few mini-moons, some only a couple of metres in size. The line of what is and isn't a moon is a bit hazy. Moons orbiting planets in the Solar System can be either 'regular' or 'irregular'. The new moons are all irregular. Regular moons are formed around a planet at the same time as the planet itself forms. Irregular moons are thought to be small planets (planetesimals) that are captured by a planet as it finishes forming. They are then broken into pieces by collisions. Regular moons tend to orbit their planets in nice, circular orbits around the equator. Irregular moons typically orbit in big ovals further away from planets, and at a range of angles. Saturn has 24 regular moons and 250 irregular moons. Studying these moons can tell us about how moons form, and reveal clues about how the Solar System formed and evolved. Saturn's rings are made of small chunks of ice and rock. Astronomers think they formed out of pieces of comets, asteroids and moons that were torn apart by Saturn's gravity. So for Saturn in particular, irregular moons can tell us more about the formation of its beautiful rings. Names of astronomical objects are governed by the International Astronomical Union (IAU). Originally, all moons in the Solar System were given names from Greco-Roman mythology. But the large number of moons, particularly of Saturn and Jupiter, means the IAU has expanded to giants and gods from other mythology. And it's all about the details. If binary moons are discovered, they are required to be given names of twins or siblings. Saturn's first seven moons were given numbers instead of names. In 1847, John Herschel named them after the Greek Titans. After they ran out of titans and Greek mythological giants, they expanded the naming system to include Inuit and Gallic gods and Norse giants. Discoverers get to suggest names for moons, and the names they suggest are given priority by the IAU. In the past, there have been competitions to name new moons of Jupiter and Saturn. With 128 new moons for Saturn, it might take a while to come up with names that follow the IAU rules. Maybe we'll even see the addition of different mythologies. We'll have to wait and see. Until then, each moon has a name made of a string of numbers and letters, such as 'S/2020 S 27'. Without a solid definition of what a moon is, it's hard to say when (or if) we will ever finish finding them. Everyone agrees we shouldn't call every single chunk of rock in Saturn's rings a moon, but exactly where to draw the line isn't clear. That said, there is probably a limit to the number of moon-like objects astronomers are likely to want to add to the list. Edward Ashton, who led the discovery of the new moons, doesn't think we'll be finding too many new moons until our technology improves.
