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Tag Archives: ejection
Vols’ Christian Moore suspended for series finale against Vanderbilt because of ejection – 247Sports
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Rocco Baldelli, Aaron Boone explain what led to Twins manager’s ejection following lengthy sticky-stuff check – CBS Sports
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Matt LaFleur: Quay Walker ejection is the kind of stuff I have zero tolerance for
Packers rookie linebacker Quay Walker was ejected on Sunday night for pushing Bills practice squad tight end Zach Davidson on the sideline, and after the game Packers coach Matt LaFleur called it unacceptable.
Davidson, who was not in uniform, grabbed Walker when Walker was on the Bills’ sideline, and Walker responded with a shove that the officials flagged immediately and then the New York officiating office called down an ejection. LaFleur said Walker needs to know better.
“I told him on the field, ‘It’s always the second guy, and you’ve got to keep your poise,’” LaFleur said. “That’s something we talk about, we stress all the time, we show clips of guys around the league losing their mind, and it’s an unfortunate lesson that he’s got to learn. And I hope it’s a reminder for everyone on our football team. That’s the kind of stuff I have zero tolerance for. Mistakes are gonna happen, but losing your cool, losing your poise, putting your team in jeopardy, I’ve got no tolerance for that.”
The already struggling Packers defense missed Walker for the rest of their 27-17 loss.
Coronal Mass Ejection Hits Solar Orbiter Spacecraft Before Venus Gravity-Assist Flyby
In the early hours of Sunday, September 4, Solar Orbiter flew by
Artist’s impression of Solar Orbiter making a flyby at Venus. Credit: ESA/ATG medialab
Fortunately, there was no damage or no negative effects on the spacecraft. Indeed, the ESA-
So far, Solar Orbiter has been confined to the same plane as the planets, but from February 2025 onwards, each encounter with Venus will increase its orbital inclination, causing it to ‘leap’ up from the plane of the Solar System to get a view of the Sun’s mysterious polar regions.
This third flyby of Venus took place on Sunday at 01:26
Its distance from Venus, angle of approach, and velocity were all carefully planned to get the precise desired effect from the planet’s large gravitational pull – getting the spacecraft closer to the Sun than ever before.
Solar Orbiter Flight Control Team during pre-launch simulations in 2020. Credit: ESA
“The close approach went exactly to plan, thanks to a great deal of planning from our colleagues in Flight Dynamics and the diligent care of the Flight Control Team,” explains Jose-Luis Pellon-Bailon, Solar Orbiter Operations Manager.
“By trading ‘orbital energy’ with Venus, Solar Orbiter has used the planet’s gravity to change its orbit without the need for masses of expensive fuel. When it returns to the Sun, the spacecraft’s closest approach will be about 4.5 million km (2.8 million miles) closer than before.”
Understanding particles that pose a radiation risk
Data beamed back to Earth since Solar Orbiter encountered the solar storm shows how its local environment changed as the large CME whooshed by. Although some instruments had to be turned off during its close approach to Venus, in order to protect them from stray sunlight reflected off of the planet’s surface, Solar Orbiter’s ‘in situ’ instruments remained on, recording an increase in solar energetic particles, among other things.
This composite image shows a SOHO image of the Sun and an artist’s impression of Earth’s magnetosphere. Credit: Magnetosphere: NASA, the Sun: ESA/NASA – SOHO
Particles, mostly protons and electrons, but also some ionized atoms like Helium, are constantly emitted by the Sun. When particularly large flares and ejections of 
Solar Orbiter’s suite of ten science instruments that will study the Sun. There are two types: in situ and remote sensing. The in situ instruments measure the conditions around the spacecraft itself. The remote-sensing instruments measure what is happening at large distances away. Together, both sets of data can be used to piece together a more complete picture of what is happening in the Sun’s corona and the solar wind. Credit: ESA-S.Poletti
Goodbye, halo?
This recent CME illustrates a difficulty in space weather observations. As seen in this footage from
Large coronal mass ejection (CME) was recorded by the Solar and Heliospheric Observatory (SOHO) on August 30, 2022. The CME struck ESA’s Solar Orbiter spacecraft as it performed a flyby of Venus. Credit: ESA/NASA SOHO
It is tricky to determine if coronal mass ejections are coming towards Earth or moving away when viewed from Earth, because in both cases it appears to be expanding. One of the many benefits of the coming Vigil mission is that by combining the images taken from Earth’s direction and Vigil’s position at the ‘side’ of the Sun, the fifth Lagrange point, it will be easy and reliable to distinguish between an oncoming or departing storm.
Space weather gets deep
The Sun wields its influence on all the bodies of the Solar System. It’s the reason why no life could survive on the inner planets, as the sun makes their temperatures too hot and stripped away their atmospheres long ago.
As we venture from Earth to the Moon, it’s vital that we understand how space weather can affect human bodies, robots, communication systems, and plants and animals.
Solar Orbiter’s stellar views hint at Vigil’s future. Credit: ESA
As well as a wide range of tools to understand the Sun’s effect on Earth’s infrastructure, ESA’s Space Weather Service Network currently alerts teams flying missions throughout the Solar System of extreme space weather, with forecasts for Mercury, Venus, and
ESA’s Solar orbiter just got smacked by a coronal mass ejection
The sun-exploring Solar Orbiter spacecraft came face to face with a massive eruption of plasma from the sun, just ahead of a pivotal flyby of Venus.
An enormous coronal mass ejection (CME), a burst of charged particles from the sun’s upper atmosphere, the corona, shot out from the sun on Aug. 30 in the direction of Venus. Shortly after that, the bubble of solar material reached Solar Orbiter, which was just preparing for its latest orbital flyby of the second planet of the solar system.
Fortunately, the ESA-NASA observatory is designed to measure the very kind of violent outburst it just encountered and thus could withstand the solar assault with ease.
The spacecraft carries 10 science instruments to observe the sun’s surface and collect data on CMEs, the solar wind and the sun’s magnetic field. Some of these instruments were turned off during the close approach to Venus, due to the potential risk from sunlight bouncing off the highly reflective Venusian atmosphere, ESA said in a statement.
Related: The sun as you’ve never seen it: European probe snaps closest-ever photo of our star
Solar Orbiter was, however, able to collect some valuable measurements of its environment during the CME encounter, detecting an increase in energetic solar particles. Violent solar events see particles such as protons, electrons and even ionized helium atoms hurled from the sun and accelerated to near relativistic speeds. Such particles pose a radiation risk to astronauts and can damage spacecraft. Understanding their movements and behavior in space will therefore be valuable for protecting life and technology on Earth and in space.
The spacecraft later successfully made its close approach to Venus at 01:26 GMT Sept. 4 (9:26 p.m. EDT Sept. 3).
“The close approach went exactly to plan, thanks to a great deal of planning from our colleagues in Flight Dynamics and the diligent care of the Flight Control Team,” Jose-Luis Pellon-Bailon, Solar Orbiter Operations Manager, said in the statement.
The close approach was primarily intended to allow Solar Orbiter to change its orbit to take it closer to the sun. During the flyby, however, the probe also made bonus observations of Venus’s mysterious magnetic field.
Solar Orbiter launched in 2020 and is two-and-a-half years into its decade-long mission to image the sun from the closest ever distance and study the properties of the star’s magnetic field. The spacecraft uses Venus’s gravity to alter and tilt its orbit out of the ecliptic plane, in which planets orbit. These visits to Venus will eventually enable Solar Orbiter to make the first-ever observations of the sun’s unexplored poles, which are key to driving the star’s 11-year cycle of activity, the ebb and flow in the generation of sunspots, flares and eruptions that affect space weather around Earth.
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Coronal mass ejection hits Solar Orbiter before Venus flyby
05/09/2022
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In brief
In the early hours of Sunday, 4 September, Solar Orbiter flew by Venus for a gravity-assist manoeuvre that alters the spacecraft’s orbit, getting it even closer to the Sun. As if trying to get the orbiter’s attention as it cosied up to another body in the Solar System, the Sun flung an enormous ‘coronal mass ejection’ straight at the spacecraft and planet just two days before their closest approach – and the data are revealing.
In-depth
On 30 Aug, a large coronal mass ejection shot from the Sun in the direction of Venus. Not long later, the storm arrived at the second planet from the Sun. As the data continues to come in from Solar Orbiter, this strike reveals why ‘in situ’ monitoring of space weather and its effects on the bodies, and spacecraft, of the Solar System are so important.
Fortunately, there were no negative effects on the spacecraft as the ESA-NASA solar observatory is designed to withstand and in fact measure violent outbursts from our star – although Venus doesn’t always get off so lightly. Coronal mass ejections have a tendency of eroding Venus’ atmosphere, stripping off gasses as they whoosh by.
Fly high with Venus fly by
Solar Orbiter is a quarter of the way through its decade-long mission to observe the Sun up close and get a look at its mysterious poles. Its orbit was chosen to be in close resonance with Venus, meaning it returns to the planet’s vicinity every few orbits to use its gravity to alter or tilt its orbit.
So far, Solar Orbiter has been confined to the same plane as the planets, but from February 2025 onwards, each encounter with Venus will increase its orbital inclination, causing it to ‘leap’ up from the plane of the Solar System to get a view of the Sun’s mysterious polar regions.]
This third flyby of Venus took place on Sunday at 01:26 UTC, when Solar Orbiter passed 12 500 km from the planet’s centre, which is very roughly 6 000 km from its gassy ‘surface’. In other words, it passed a distance half the width of Earth.
Its distance from Venus, angle of approach and velocity were meticulously planned to get the exact desired effect from the planet’s large gravitational pull – getting it closer to the Sun than ever before.
“The close approach went exactly to plan, thanks to a great deal of planning from our colleagues in Flight Dynamics and the diligent care of the Flight Control Team”, explains Jose-Luis Pellon-Bailon, Solar Orbiter Operations Manager.
“By trading ‘orbital energy’ with Venus, Solar Orbiter has used the planet’s gravity to change its orbit without the need for masses of expensive fuel. When it returns to the Sun, the spacecraft’s closest approach will be about 4.5 million km closer than before.”
Understanding particles that pose a radiation risk
Data beamed home since Solar Orbiter encountered the solar storm shows how its local environment changed as the large CME swept by. While some instruments had to be turned off during its close approach to Venus, in order to protect them from stray sunlight reflected off of the planet’s surface, Solar Orbiter’s ‘in situ’ instruments remained on, recording among other things an increase in solar energetic particles.
Particles, mostly protons and electrons, but also some ionised atoms like Helium, are emitted by the Sun all the time. When particularly large flares and ejections of plasma are shot from the Sun, these particles are picked up and carried with them, accelerated to near relativistic speeds. It is these particles that pose a radiation risk to astronauts and spacecraft.
Improving our understanding of CMEs and tracking their progress as they breeze through the Solar System is a big part of Solar Orbiter’s mission. By observing CMEs, the solar wind and the Sun’s magnetic field, the spacecraft’s ten science instruments are providing new insight into how the 11-year cycle of solar activity works. Ultimately, these findings will help us better predict periods of stormy space weather and protect planet Earth from the Sun’s violent outbursts.
Goodbye, halo?
This recent CME illustrates a difficulty in space weather observations. As seen in this footage from SOHO, a ‘full halo’ is visible when a CME is either coming straight at Earth, or in this case heading directly away, from the ‘far side’ of the Sun.
Determining if coronal mass ejections are coming towards Earth or away is tricky when viewed from Earth, because in both cases it appears to be expanding. One of the many benefits of the coming Vigil mission is that by combining the images taken from Earth direction and Vigil’s position at the ‘side’ of the Sun, the fifth Lagrange point, distinguishing between an oncoming or departing storm will be easy and reliable.
Space weather gets deep
The Sun exerts its influence on all the bodies of the Solar System. It’s the reason why no life could survive on the inner planets, the temperatures being too hot and their atmospheres having been stripped away long ago.
As we venture from Earth to the Moon, its vital we understand how space weather can affect human bodies, robots, communication systems and plants and animals.
As well as a range of tools to understand the Sun’s effect on Earth infrastructure, ESA’s Space Weather Service Network currently alerts teams flying missions throughout the Solar System of extreme space weather, with forecasts for Mercury, Venus and Mars freely available via the Network’s Portal, and Jupiter on the way.
“Gathering data on events like this is crucial to understanding how they arise, improving our space weather models, forecasts and early-warning systems,” explains Alexi Glover, ESA Space Weather Service Coordinator.
“Solar Orbiter is providing us with an excellent opportunity to compare our forecasts with real observations and test how well our models and tools perform for these regions”.
A “cannibal” solar ejection heading straight for Earth could bring northern lights as far south as Illinois and trigger power voltage issues
The sun could be sending a storm to Earth over the next few days. According to the National Oceanic and Atmospheric Administration, our fiery star spit out a series of bursts on Sunday that are headed in the direction of our planet and could trigger a strong geomagnetic storm.
One of those bursts, called a coronal mass ejection, or CME, is expected to collide and consume another, creating what’s called a cannibal CME event. According to The Weather Channel, these events can spark strong geomagnetic storms — and in this case, it’s headed in our direction.
NASA SOHO/AFP via Getty Images
NOAA expects that the ejections will hit on Thursday, but before they do, the agency said that Earth will also be blasted on Wednesday with relatively fast solar winds, known as a recurrent coronal hole high speed stream. The solar winds alone could trigger a minor geomagnetic storm on Wednesday, but those conditions are expected to escalate to strong conditions, known as G3, once the solar bursts make their appearance.
NOAA said at least four of the CMEs have the potential to directly affect Earth.
Geomagnetic storms are ranked on a scale of G1 to G5, with G5 being the most extreme. In such an instance, there would be widespread voltage control issues and some power grids could experience “complete collapse or blackouts,” according to NOAA.
A G3 storm, like the one anticipated, could require that some power voltage systems need to be corrected and it could also trigger some false alarms on power protection devices.
Such a storm could also create a beautiful side effect — visible northern lights outside of their usual realm.
NOAA previously said the northern lights, also known as the aurora borealis, may be seen as far south as Illinois and Oregon if the G3 hits.
When a CME hit Earth on Wednesday, it sparked a G2 geomagnetic storm and a sighting of aurora in Herzogswalde, Germany, according to spaceweather.com, which tracks the latest data coming from NOAA. Herzogswalde is at 51ºN latitude, roughly in line with central Quebec and Ontario in Canada. And as spaceweather.com noted, the lights were visible in that city through “clouds, haze and urban lights.”
On Thursday morning, NOAA said that the area of impact is mostly areas 50ºN and later, adding that the aurora may be visible at high latitudes such as in Canada and Alaska.
Also on Wednesday, NASA astronaut Bob Hines, who is a pilot on the SpaceX Crew-4 mission that launched in April, shared his own photos of the northern lights as seen from space. He pointed to the recent solar activity for creating the splendor.
Where the lights will be visible and how intense they will be is best estimated by NOAA about 30 to 90 minutes beforehand. Radar shows that Thursday morning at around 2:45 a.m. ET, the probability of aurora being seen from North Dakota, Minnesota and most of Canada increased dramatically.
A short-term forecast for the lights can be found here.
Alex Kormann/Star Tribune via Getty Images
Warriors’ Draymond Green worries about flagrant points after Game 1 ejection
Draymond Green knows all about getting suspended in the playoffs after he was on the short end of arguably one of the most infamous suspensions in an NBA Finals.
Green has a number of reasons to be upset over being ejected for a Flagrant 2 foul in the second quarter of the Warriors’ 117-116 win over the Memphis Grizzlies in Game 1 of the second round on Sunday. Because what’s lingering in the background is the possibility of a suspension if he picks up more flagrant fouls during the playoffs.
In Game 4 of the 2016 NBA Finals against the Cleveland Cavaliers, Green was given a flagrant for what the NBA called “a retaliatory swipe of his hand to the groin” of LeBron James. The Warriors won that game to take a 3-1 lead in the series, but Green was suspended for Game 5 because he had accumulated four flagrant points over the course of the playoffs.
Then, the Warriors lost three straight in a historic collapse that left a 73-win regular season team without a championship. If Green hadn’t been suspended for Game 5 at Oracle Arena, the Warriors might very well have closed out the Cavaliers and altered the course of NBA history – as Kevin Durant likely wouldn’t have signed with the Warriors the following offseason.
Which brings Green to the present day. Green recorded an “emergency” podcast of the Draymond Green Show from his hotel room in Memphis after the game, where he attempted to talk through why the referees ejected him for a foul on Brandon Clarke that many in the NBA world thought shouldn’t have warranted a Flagrant 2.
But Green also brought up the fact that he now has two flagrant foul points because it was a Flagrant 2 foul (Flagrant 1 fouls result in one flagrant foul point). Two more points result in an automatic one-game suspension, and a suspension will follow for each subsequent point.
“My biggest worry moving forward is that gives me two flagrant foul points, and as we know I’ve been ejected for accumulation of flagrant foul points,” Green said. “So I’m hoping that the right thing will happen, and that it will at least get rescinded to a flagrant one.”
At the end of the podcast, Green updated his statement to: “I’m looking forward to it getting rescinded.”
Related: Draymond’s perfect response to Clarke’s ejection remarks
Even rescinding the foul to a Flagrant 1 would be huge for Green, because he would have to accrue three more Flagrant 1 fouls before a suspension or he could even pick up another Flagrant 2 and be fine. But now, he has to get through the rest of the playoffs without picking up another Flagrant 2, and he has less leeway on committing fouls in general in case the referees call it a flagrant.
The Warriors may have won Game 1, but they have a long road ahead to a potential championship. They need Green on the court to get them there, and having experienced the chaos of the 2016 postseason, Green definitely knows that too.
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Sunspot Erupts With Two Solar Flares, Sending Coronal Mass Ejection Our Way
Among the 60 sunspots currently on the surface of the Sun, there’s one that has been furiously active this week. Spot AR2929 has released not one but two solar flares followed by coronal mass ejections.
Luckily, NASA’s Solar Dynamics Observatory, which constantly watches the Sun, captured them.
The first flare, classified as an M1.5, was released on January 18, while the second one exploded on January 20 and was much more powerful, reaching M5.5. As flares go, these are classed as just above minor and just above moderate, respectively, but they are still incredible releases of energy from our star.
The events led to an increase in X-rays from the Sun, creating a minor and brief short-wave radio blackout over South America and the Indian Ocean.
The power of the flares is clear in the release of coronal mass ejections — huge releases of plasma and magnetic field expelled from the Sun’s corona — both of which were quite spectacular, even though far from the best we have seen.
These events literally make waves in the solar wind and when flung in our direction can affect the space weather of our planet, including bringing about some beautiful aurorae.
The coronal mass ejection emitted from the January 18 flare. Image Credit: NASA/NOAA
By the looks of things, there is no expectation for visual lower latitude auroras, but forecasts expect a moderate uptick of activity on the night between Saturday 22 and Sunday 23 January.
Observations of activity like this constantly improves our understanding of the Sun and helps us prepare against the most dangerous and powerful space weather events it can cause.