Categories
Ace Daily News

(NASA) JUST IN: A perfect storm of sorts, as an upcoming phase of a lunar cycle combines with rising sea levels to exacerbate the effects of climate change #AceNewsDesk report

#AceNewsReport – July.18: Throughout history, the Moon has copped more than its fair share of the blame for everything from outbreaks of erratic behaviour to fluctuations in libido.

#AceDailyNews says Moon wobble to exacerbate climate change flooding effects in next lunar cycle, NASA warns as affects of climate change take hold …acording to a finding that is contained in a study by their ‘Sea Level Change Science Team’ at the University of Hawaii, which said the main reason was the impact a “regular wobble in the Moon’s orbit” would have on tides in about 15 years’ time.

A bright glowing moon behind dark clouds at night time.
The Moon will combine with rising sea levels to drive more major flooding events.(Supplied: Julie Cronin)

But no less an authority than NASA is warning of a perfect storm of sorts, as an upcoming phase of a lunar cycle combines with rising sea levels to exacerbate the effects of climate change.

“The combination of the Moon’s gravitational pull, rising sea levels, and climate change will continue to exacerbate coastal flooding on our coastlines and across the world,” NASA administrator Bill Nelson said.

“Low-lying areas near sea level are increasingly at risk and suffering due to the increased flooding, and it will only get worse.”

Waves break around the church in the harbour at Porthleven, Cornwall south-western England.
Waves break around the church in the harbour at Porthleven, Cornwall south-western England.(AP: Ben Birchall)

The study — which coincides with deadly downpours in Germany and Belgium — forecasts “dramatic increases” in the number of floods, as well as “rapidly increasing high-tide floods” in the mid-2030s.

NASA said the main reason was a regular wobble in the Moon’s orbit — first detected in 1728 — that takes 18.6 years to complete.

The agency said what was new was how the wobble’s effects on the Moon’s gravitational pull – the main cause of Earth’s tides – would “combine with rising sea levels resulting from the planet’s warming”.

Professor Mark Howden from the Australian National University.
Professor Mark Howden is Director of the Institute for Climate, Energy and Disaster Solutions at the Australian National University.(Supplied)

Australian National University climate expert Mark Howden said the research was the first of its kind, and said the lunar phenomenon responsible was known as the Moon’s “nodal cycle”.

“The orbit of the Moon apparently changes from the perspective of Earth,” Professor Howden said.

“Sometimes it’s tilted up one way and sometimes it’s tilted the other way.”

Professor Howden said during the amplified part of the cycle, “the Moon was lining up with the Sun in terms of gravity” — with the combined effect increasing the height of high tides.

“Those cycles of the Moon have happened for probably billions of years, so they’re just part of the background world we inherit,” he said.

“The problem here is that we’re changing the sea level very quickly, so it’s going up at a record rate at the moment, and what used to be a relatively benign cyclical effect is now a ramping up effect.

“In Florida, they get what they call ‘sunny day flood events’ — it’s a day when there isn’t a storm pushing waves onto the shore, it’s simply that there’s a high tide.”

A young woman sits next to a telescope.
Kirsten Banks is a Wiradjuri astrophysicist and science communicator.(Supplied: Kirsten Banks)

Astrophysicist and science communicator Kirsten Banks said the Moon was currently in a tide-amplifying part of its cycle — but the effects were not as environmentally significant as they would be next time round.

“We are currently in an amplified stage of the cycle, but the sea levels are at an OK level so it doesn’t affect us as much as it will in the next cycle,” she said.

According to NASA’s research, floods will occur in clusters lasting “a month or longer, depending on the positions of the Moon, Earth, and the Sun”.

But Ms Banks said we should not be leaping to point the finger at celestial movements, but climate change.

“As much as it would be easy to blame the Moon, we have ourselves to blame for this one,” she said.

#AceNewsDesk report ……..Published: July.18: 2021:

Editor says …Sterling Publishing & Media Service Agency is not responsible for the content of external site or from any reports, posts or links, and can also be found here on Telegram: https://t.me/acenewsdaily all of our posts fromTwitter can be found here: https://acetwitternews.wordpress.com/ and all wordpress and live posts and links here: https://acenewsroom.wordpress.com/and thanks for following as always appreciate every like, reblog or retweet and free help and guidance tips on your PC software or need help & guidance from our experts AcePCHelp.WordPress.Com

Categories
Ace Daily News

(WORLDWIDE) FEATURED: A giant star is blinking near the center of our Milky Way galaxy like a stellar beacon, according to new observations by astronomers. The star is located more than 25,000 light-years away from Earth #AceNewsDesk report

#AceNewsReport – June.15: This companion is likely surrounded by a disk of material that cloaks the giant star, causing the blinking pattern witnessed by astronomers:

Giant blinking star spotted near center of Milky Way galaxy: Known as VVV-WIT-08, the star dimmed so much that it almost disappeared from view as astronomers observed it over time.

Milky Way new photo galaxy orig vstan dlewis_00000000

It’s not uncommon for a star’s brightness factor to change. Some stars pulsate, or one star within a stellar pair, called a binary, can be eclipsed by another. But it is incredibly rare for a star to grow faint and brighten again, or blink.

New NASA photo shows our galaxy's 'violent energy'
The observation of this star has led researchers to believe that it may belong to a new class: a “blinking giant” binary star system. This class includes giant stars a hundred times larger than our sun being eclipsed every few decades or so by an unseen companion, which could be a planet or another star.

This is an artist’s impression of VVV-WIT-08, a giant ‘blinking’ star near the center of the Milky Way.The study published Friday in the Monthly Notices of the Royal Astronomical Society.

This is an artist's impression of VVV-WIT-08, a giant 'blinking' star near the center of the Milky Way.

The center of our galaxy is a dense region that includes a supermassive black hole, superclusters of stars, streams of gas and magnetic filaments.

“It’s amazing that we just observed a dark, large and elongated object pass between us and the distant star, and we can only speculate what its origin is,” said Sergey Koposov, study coauthor and reader in observational astronomy at the University of Edinburgh, in a statement.

Finnish astrophotographer spends 12 years creating a Milky Way mosaic

At first, the researchers speculated that an unknown dark object passed in front of the giant star, but that would only be possible if there were a large number of these objects in the galaxy, which is unlikely.

A study of other such unique star systems including giant stars that dim and brighten, or showcase this blinking pattern, helped the researchers determine that a new class of blinking giant stars may exist and need to be investigated. So far, it appears there are around six such systems.

The star system in this study was found using the VISTA Variables in the Via Lactea, or VVV survey. This project, utilizing the VISTA telescope at the European Southern Observatory in Chile, has observed 1 billion stars for almost a decade to see how they vary in brightness.

New Milky Way map reveals a wave of stars in our galaxy's outer reaches

“Occasionally we find variable stars that don’t fit into any established category, which we call ‘what-is-this?’, or ‘WIT’ objects,” said Philip Lucas, VISTA project lead and professor at the University of Hertfordshire, in a statement. “We really don’t know how these blinking giants came to be. It’s exciting to see such discoveries from VVV after so many years planning and gathering the data.”

The star’s dimming was also observed using the Optical Gravitational Lensing Experiment, or OGLE, a sky survey run by the University of Warsaw. The data sets from both surveys showed that the star dimmed equally in both infrared and visible light. 

Astronomers will continue to search for more of these giant blinking star systems to learn more about them.

“There are certainly more to be found, but the challenge now is in figuring out what the hidden companions are, and how they came to be surrounded by discs, despite orbiting so far from the giant star,” said Leigh Smith, discovery lead and research associate in the University of Cambridge’s Institute of Astronomy, in a statement. “In doing so, we might learn something new about how these kinds of systems evolve.”

#AceNewsDesk report ………Published: Jun.15: 2021:

Editor says #AceNewsDesk reports by https://t.me/acenewsdaily and all our posts, also links can be found at here for Twitter and Live Feeds https://acenewsroom.wordpress.com/ and thanks for following as always appreciate every like, reblog or retweet and free help and guidance tips on your PC software or need help & guidance from our experts AcePCHelp.WordPress.Com