List of All Articles with Tag 'pac'

By Joey Roulette WASHINGTON Elon Musk's SpaceX has tapped NASA's former human spaceflight boss Kathy Lueders to help

Nasa has built an artificial intelligence model to predict where on Earth an impending solar storm would strike, a new system that scientists said can provide “30 minutes of advance warning”. The AI model analyses Nasa satellite data to raise the alarm on dangerous space weather, said researchers from the American space agency’s Goddard Space Center. The warning may provide just enough time for countries to prevent severe impacts of these storms on power grids and other critical infrastructure, according to the new study published recently in the journal Space Weather. Solar storms are caused when the Sun emits a burst of electrically charged plasma in what is called a coronal mass ejection. These charged particles create so-called geomagnetic storms that may cause blackouts and technological malfunctions of instruments on Earth as they interfere with the protective magnetic field around the planet. While these storms range from mild to extreme, their effects could become increasingly disruptive in a technologically dependent world. For instance, a solar storm in 1989 caused blackouts across Quebec, Canada for 12 hours, plunging millions into the dark and closing schools and businesses. Another popular solar superstorm event known as the Carrington Event sparked fires at early telegraph stations in 1859 that prevented messages from being sent. Scientists warned that the risk of such a devastating solar storm is increasing as we approach the next “solar maximum” – a peak in the Sun’s 11-year activity cycle. To prevent such a devastation, Nasa scientists developed the new AI model to identify links between solar wind measurements from previous Sun missions and geomagnetic disturbances observed at ground stations across Earth. The computer model they developed, called DAGGER, can quickly and accurately predict geomagnetic disturbances worldwide, “30 minutes before they occur,” researchers said. When they tested the model against two geomagnetic storms that happened in August 2011 and March 2015, it was able to “quickly and accurately” forecast the storm’s impacts around the world. The new prediction system is the first to combine swift analysis of AI, with real measurements from space and across Earth to generate frequently updated predictions. Scientists believe the early warning provided by the system can help take action to protect infrastructure from an impending solar storm, such as temporarily taking sensitive systems offline or moving satellites to different orbits. Read More Stunning aurora lights up skies over Australia: ‘Brightest one I’ve ever seen’ How a severe solar storm could leave a lasting impact on our world The world is not yet ready to overcome a once-in-a-century solar superstorm, warn scientists Astronomers find ‘objects that no one has ever seen before’ Saturn’s rings are no more than 400 million years old – study Strange sounds recorded by balloons in stratosphere leave scientists puzzled

Scientists think they have found an explanation for what scientists thought was a “runaway” black hole speeding through the universe. Last month, scientists reported that they had seen what appeared to be an object unlike anything seen before. What originally appeared to be scratches on Hubble images was actually a black hole that had been thrown out from its home galaxy and was now speeding through the cosmos, scientists said. Astronomers had come to that conclusion after spotting a long trail of stars, formed 8 billion years ago. It was a stretched out, narrow shape, roughly the same size as our own Milky Way. Last month’s study suggested that those stars were the wake left behind from that runaway black hole. As the black hole travelled through a gas cloud, it left behind the right conditions to start forming stars, that study suggested. It was shock and a breakthrough for a number of reasons: it was unprecedented, and required a number of different conditions for it to be true. That led astronomers both to celebrate and question the theory, and in the time since other researchers have been working on their own ideas. Now scientists at the Instituto de Astrofísica de Canarias (IAC) have suggested their own, more ordinary explanation of the unusual, long star structure. They suggest that it is in fact just a flat or thin galaxy – one without a bulge that makes it wider – that is being seen from its side. “The motions, the size, and the quantity of stars fits what has been seen in galaxies within the local universe,” said Jorge Sanchez Almeida, an IAC researcher who is the first author of the article, in a statement. “It’s a relief to have found the solution to this mystery, the new proposed scenario is much simpler. In one sense it is also a pity, because the existence of fleeing black holes is expected, and this could have been the first one to be observed.” The team compared the mystery structure with another, much better known galaxy, named IC5249. That is near to us, has a similar mass of stars, and doesn’t have a galaxy either. They found that it was surprisingly similar. The stars were moving in similar ways to those found in closer, comparative galaxies, researchers said. That led scientists working on the new paper to suggest that it is a relatively normal and expected galaxy, rather than an out-of-control black hole. But they hope that further observations will shed further light on what exactly it is doing – and could still allow the galaxy to prove of interest to astronomers. “We also looked at the relation between the mass of the assumed galaxy and its maximum velocity of rotation, and discovered that indeed it is a galaxy which behaves like a galaxy,” said Ignacio Trujillo, an IAC researcher who worked on the study. “It is an interesting object, because it is quite a large galaxy at a very large distance from Earth, where the majority of the galaxies are smaller.” The proposal is reported in a paper, ‘Supermassive black hole wake or bulgeless edge-on galaxy?’, published in the journal Astronomy and Astrophysics. Read More Aliens may intercept human communication ‘within next 100 years’, study says Powerful auroras likely this week due to rare ‘backward’ sunspot Meteorite crashes through roof of New Jersey home Aliens may intercept human communication ‘within next 100 years’, study says Powerful auroras likely this week due to rare ‘backward’ sunspot Meteorite crashes through roof of New Jersey home

The Green Bay Packers are transitioning from Aaron Rodgers to Jordan Love as the quarterback.For better or worse, it is the Jordan Love era of Green Bay Packers football, now and going forward.After 30-plus years of hall-of-fame-level quarterback play, the Packers decided to move on from the...

The Green Bay Packers schedule is out, and with it is Jordan Love's first full slate as starter. If all goes well, Love will win these three games and prove the front office right.The Green Bay Packers front office has a lot of Jordan Love stock. It all started when they selected him in 202...

It's been a long run for Green Bay Packers kicker Mason Crosby, but it could all be over, per his wife Molly.Mason Crosby is 39 years old. He's been in Green Bay for over a decade, but as his leg weakens, it hurts the team as well. Still, Brian Gutekunst's comments at the NFL Comb...

The 2023 NFL Schedule is officially out. Here's an early breakdown of who will win every game from Opening Night until the Super Bowl.A busy NFL offseason has reached its latest milestone with the release of the 2023 NFL Schedule. There has been a lot of drama and player movement, including...

How well Jordan Love plays out of the gate will decide if he is the Green Bay Packers' future.A soft start to the Green Bay Packers' 2023 regular-season schedule is both a blessing and a curse for their new starting quarterback Jordan Love.FOX Sports' Colin Cowherd outlined ho...

The 2023 NFL schedule is officially out. Here are the 10 best games for fans to look forward to when the new season kicks off in September.There are milestones in the long NFL offseason. The league has smartly spread them out to ensure they are relevant throughout the calendar year, including a ...

The full Green Bay Packers schedule has dropped, so we're predicting every game and the Packers record for the 2023 season as the Jordan Love era begins.The fact of the matter is that the Green Bay Packers present a complete unknown in the 2023 NFL season. We haven't seen this team wit...

The entire Green Bay Packers schedule leak is something to see. Packers fans get an early look at the Jordan Love era.Green Bay will still be featured on primetime five times next season, or six if you include a Thanksgiving matchup against the Detroit Lions.Among the notable matchups are th...

Former Houston Texans pass rusher J.J. Watt revealed that he considered ending his career with the Green Bay Packers after becoming a free agent in 2021.Prior to the end of the 2022 NFL season, Arizona Cardinals pass rusher J.J. Watt announced his retirement from the game. Watt etched his name a...