Strange Skies
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Cloud Grey

Iridescent clouds seen in Ho Chi Minh City sky

iridescent clouds vietnam climate change
© Dinh Thuong / Tuoi TreThe clouds over Ho Chi Min City, Vietnam on May 12, 2024, look like a glistening rainbow.
Iridescent clouds appeared in the sky of Ho Chi Minh City on Sunday afternoon, prompting many to share images of the phenomenon online, playfully dubbing it 'Aurora borealis in Saigon.'

Saigon is the old name of the city but it is still in popular use.

The magnificent clouds emerged between 3:30 pm and 4:20 pm.

The phenomenon is called cloud iridescence or irisation, a colorful optical phenomenon that occurs in clouds and appears in the general proximity of the sun or moon.

This occurs when water droplets or ice crystals in the cloud diffract the light around the outside of the droplet, as opposed to bending the light through it.

Better Earth

'Bizarre' gravity wave cloud phenomenon photographed over Australia

gravity wave cloud
screenshots
Sydneysiders have been treated with a bizarre weather display after dozens of photos began circulating online of strange tubular clouds.

The eerie weather phenomenon was photographed and filmed over the city on Tuesday afternoon, with many querying what the reason was for the strange formations.

"Is it aliens?" one man asked. "I feel that as a society we all have the right to really know what is going on. Should we be concerned?"

Comment: Chemtrails, and geoengineering, are indeed real, however, whilst these rather nefarious practices have gained significant traction in the public consciousness in just the last year or so, they seem to be distracting from another the significant changes occurring in our atmosphere - which is also evident in a variety of other strange sky phenomena, including Transient Luminous Events, iridescent clouds, low lattitude and multicoloured aurora, to name a few - and which, unlike those man-made problems, cannot be stopped, and foreshadow greater Earth Changes up ahead: The turbulence comment is notable because in recent weeks there have been a few notable 'extreme' turbulence incidents: Another severe turbulence incident strikes passenger plane, follows death of passenger in similar incident 1 week earlier

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Cloud Grey

Another severe turbulence incident strikes passenger plane, follows death of passenger in similar incident 1 week earlier

dublin airport
© Reuters/Clodagh Kilcoyne / ReutersAn aerial view of Dublin airport is seen from the window of a Ryanair flight in September 2017.
Passengers who were injured in severe turbulence on a Qatar Airwaysflight from Doha to Dublin have said their clothes were ripped and flight attendants were scratched during the terrifying ordeal.

Twelve passengers were injured as turbulence caused some people on board to hit the cabin ceiling on the flight on Sunday.

All passengers were assessed for injury before disembarking the aircraft once the plane landed safely as scheduled shortly before 1pm, with eight passengers subsequently taken to hospital, airport officials said.

One traveller named Cathal said his shorts had ripped apart as he was flung around the cabin during the turbulence.

Comment: The incidents are notable because at least one recent study revealed that turbulence, overall, has been on the rise for the past 40 years, and particularly across the Atlantic. Alongside this, there's a myriad of other phenomena that seems to support the idea that there are significant changes occurring to our atmosphere, in addition to the increase in extreme weather events: Aircraft experiencing 37% increase in turbulence over last 40 years

See also: Severe turbulence on UK-Singapore Boeing flight, 1 dead, 30 injured


Info

Lost photos suggest Mars' mysterious moon Phobos may be a trapped comet in disguise

Previously unpublished photos of Mars' moon Phobos hint that the mysterious satellite may actually be a trapped comet — or perhaps just a piece of one, along with its twin moon Deimos.
Phobos and Deimos
© NASA/JPL-Caltech/GSFC/Univ. of ArizonaA composite photo of Mars with its twin moons Phobos and Deimos. New research suggests the pair may in fact be two halves of an ancient comet captured by Mars long ago.
Mars' moon Phobos may actually be a comet — or at least part of one — that was gravitationally captured by the Red Planet long ago, a new preprint study based on previously unpublished photos suggests.

For years, researchers have puzzled over the origins of Phobos and its twin, Deimos. Some have theorized that the moons are former asteroids lured in by Mars' gravity, because their chemical composition is similar to that of certain rocks in the main asteroid belt between Mars and Jupiter. However, computer models simulating this capture process have not been able to replicate the pair's near-circular paths around Mars.

Another hypothesis suggests that a giant impact, like that which created our moon, gouged the duo out of the Red Planet; but Phobos has a different chemical composition from Mars, making this scenario unlikely, too.

Figuring out exactly how Phobos was born is one of the aims of the Japan Aerospace Exploration Agency's Martian Moons eXploration (MMX) mission, slated to launch in 2026. Sonia Fornasier, an astronomy professor at the Paris Cité University and lead author of the new study, is an instrument scientist for the MMX mission. While she and other scientists were analyzing images to fine-tune the spacecraft's planned path, Fornasier stumbled upon unpublished photos.

Question

Something strange is happening with Earth's magnetic field tail

It's called the magnetotail, of course.

Magnetotail
© Courtesy of NASA/Goddard Space Flight Center-Conceptual Image Lab
You may not know this, but Earth's magnetic field has a tail. As the sun's solar wind buffets the planet, it leaves behind a sort of long shadow that trails out in our planet's wake. Scientists call this magnetic tail, appropriately, the magnetotail. Typically, the magnetotail is strewn with magnetic storms.

But for the past several years, scientists have known of a mystery in the magnetotail: a missing storm. They have found a signature of a storm, but no storm to actually go along with it. NASA's Magnetospheric Multiscale (MMS) mission is now on the case.

MMS consists of four satellites that all launched on the same Atlas V rocket in 2015. Since then, the quartet has been studying Earth's magnetopause: the frontier of the region dominated by the planet's magnetic field. The magnetopause is constantly aflame with magnetic reconnections, which refer to when the lines that make up a magnetic field come together, break apart, then rejoin, creating brilliant flurries of heat and kinetic energy. (These reconnections, if they happen in Earth's atmosphere, can cause auroras.)

Solar Flares

Yucatan Peninsula gets rare glimpse of Northern Lights during largest solar storm in decades

northern lights
Residents in the state of Campeche also captured a rare glimpse of the northern lights
Northern lights were seen across part of the Yucatan Peninsula Friday night as the result of a solar storm. The rare display of pinks and purples dazzled the sky for viewers in northern areas of Yucatan and Quintana Roo.

The solar flares, which have been referred to as the biggest geomagnetic storm in two decades by the Space Weather Prediction Center of the NOAA, were seen across many parts of Latin America, including many areas of Mexico.

According to Protección Civil Baja California (Baja California Civil Protection), the northern lights were expected to be viewable along the northern horizon on the night of May 10 and into the early morning of May 11.

Cassiopaea

Spectacular southern lights seen across Australia after 'extreme' solar storm

Sean O'Riordan just managed to capture this stunning display at Eaglehawk Neck in south-east Tasmania
© Seán O RiordanSean O'Riordan just managed to capture this stunning display at Eaglehawk Neck in south-east Tasmania.
Aurora australis has lit up skies across southern Australia after an "extreme" geomagnetic solar storm.

Social media users in posted pictures of brightly coloured skies in Victoria, Tasmania, South Australia and across the Tasman in New Zealand.

However, much of New South Wales missed out on the spectacle due to heavy cloud and rain.

The Bureau of Meteorology has warned the storm that creates the beautiful auroras could also threaten infrastructure and essential services, including power supply.


Comment: Related: "Severe Geomagnetic Storm" hits Earth, NOAA warning in effect all weekend


Cassiopaea

Northern lights captured in timelapse footage across Europe and US

The lights shone all over the UK on Friday night, seen here in Loose, Kent
The lights shone all over the UK on Friday night, seen here in Loose, Kent
Videos filmed across the northern hemisphere show skies illuminated by the aurora borealis.

The National Oceanic and Atmospheric Administration in the US said the 'very rare event' was caused by a large sunspot cluster that has produced several moderate to strong solar flares since Wednesday morning. That meant the lights could be seen further south than usual.


Comment: Related: "Severe Geomagnetic Storm" hits Earth, NOAA warning in effect all weekend


Cassiopaea

Rare quadruple 'super-sympathetic' solar flare event captured by NASA

quarduple solar flare
© NASA/SDO/AIA SHARESimilar activity will likely increase as the sun nears its 'solar maximum.'.
Earlier this week, NASA's Solar Dynamics Observatory (SDO) recorded a rarely seen event — four nearly-simultaneous flare eruptions involving three separate sunspots, as well as the magnetic filament between them. But as impressive as it is, the event could soon pose problems for some satellites and spacecraft orbiting Earth, as well as electronic systems here on the ground.


Comment: More so considering how, with Earth's weakening magnetic field, even relatively moderate solar flares have been shown to disrupt groundbased instruments: (2023) Powerful Solar storm has unusually strong impact on Earth, delays SpaceX rocket launch, stalls oil rigs in Canada


It may seem like a massive ball of fiery, thermonuclear chaos, but there's actually a fairly predictable rhythm to the sun.
Similar to Earth's seasonal changes, the yellow dwarf star's powerful electromagnetic fluctuations follow a roughly 11-year cycle of ebbs and flows.


Although astronomers still aren't quite sure why this happens, it's certainly observable — and recent activity definitely indicates the sun is heading towards its next "solar maximum" later this year.

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Drought

Greece: Orange Sahara dust haze descends over Athens

An orange veil descended over the Greek capital on Tuesday, cloaking the Acropolis and parliament in dust
© APAn orange veil descended over the Greek capital on Tuesday, cloaking the Acropolis and parliament in dust
A dramatic orange haze has descended over Athens as clouds of dust have blown in from the Sahara desert.

It is one of the worst such episodes to hit Greece since 2018, according to officials.

Greece had already been struck by similar clouds in late March and early April, which also covered areas of Switzerland and southern France.

The skies are predicted to clear on Wednesday, says Greece's weather service.

Air quality has deteriorated in many areas of the country and on Wednesday morning the Acropolis in Athens was no longer visible because of the dust. The cloud has reached as far north as Thessaloniki.