Antarctica's 'Doomsday Glacier' close to tipping point, unmanned sub reveals

Science 14 April, 2021 - 01:13pm 23 views

When is the pink Supermoon 2021?

According to the Old Farmer's Almanac, the Pink Moon rises on the night of Monday, April 26. It is the first supermoon of 2021. It will reportedly be visible after sunset, reaching peak illumination at 11:33 p.m. ET. WFLAPink Moon: See first supermoon of 2021 light up night sky this month

What is a pink moon?

So what is this Pink Moon? It's just a colloquialism to indicate the full moon is arriving during the early spring blooms of the North American wildflower Phlox subulata, also known as "moss pink," according to the Old Farmer's Almanac. KARE11.comWhen to see this month's 'pink' supermoon

Is the pink moon actually pink 2021?

The first of at least two supermoons of 2021 is set to appear on April 26. This full moon is also known as the Pink Moon, but it won't actually be pink. A supermoon occurs when a moon is at its closest approach to Earth. KING5.comWhen to see this month's 'pink' supermoon

The glacier could be melting at the key points anchoring it to the land.

Thwaites Glacier, a gigantic ice shelf in West Antarctica, has been on climate scientists' radars for two decades now. But they didn't know just how fast the glacier was melting, and how close it was to complete collapse, until researchers sent an unmanned submarine below the ice shelf. 

The first measurements ever performed in the dark waters under the 74,000 square mile (192,000 square kilometers) chunk of ice revealed a disquieting piece of information: A previously underestimated current of warm water is flowing from the east, whittling away at several vital "pinning points" that anchor the shelf to the land.

As one of Antarctica's fastest melting glaciers, Thwaites Glacier, cheerfully nicknamed the "Doomsday Glacier," has lost an estimated 595 billion tons (540 billion metric tons) of ice since the 1980s, contributing to a 4% rise in global sea levels since that time. The glacier acts like a cork in a wine bottle, stopping the rest of the ice in the region from flowing into the sea, so Thwaites Glacier's collapse could potentially take the rest of the West Antarctic Ice Sheet with it, causing a 10-foot (3 meter) rise in global sea levels. 

That's terrible news for the glacier.

"This is the last stronghold for Thwaites and once it unpins from the sea bed at its very front, there is nothing else for the ice shelf to hold onto. That warm water is also likely mixing in and around the grounding line, deep into the cavity, and that means the glacier is also being attacked at its feet where it is resting on solid rock," Graham told Gizmodo.

Sonar on the ship also enabled high-resolution ocean mapping of the cavity floor, helping scientists to visualize the paths that currents take in and out. They spotted three main inflows of water. One, a deepwater flow from the east, was once assumed to be blocked by an underwater ridge, but the Ran data shows that the current is making its way into the bay. This means that currents are flowing into the glacier from both sides, possibly eroding it at its main anchoring point, located to the north. 

Just how much melting is going on isn't clear, but the researchers predict that just one of the currents alone is capable of reducing the ice at a rate of more than 85 gigatons per year.

Images of melt: Earth's vanishing ice

Photo gallery: Antarctica's Pine Island Glacier cracks

In photos: Huge icebergs break off Antarctica 

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2021’s first supermoon: The Pink Moon will light up the sky this month

WGHP FOX 8 Greensboro 11 April, 2021 - 11:31am

super pink egg moon back on silhouette plant and trees on night sky, Elements of this image furnished by NASA

The first supermoon of 2021 will light up the sky this month.

The Pink Moon will rise on the night of Monday, April 26, According to the Old Farmer’s Almanac. It will reportedly reach peak illumination around 11:33 p.m. EST.

To get the best view of the Pink Moon, the Almanac says you should find an open area and watch the moon as it rises just above the horizon. That’s the point experts say it will appear the biggest.

The Almanac reports that the moon will be golden in color near the horizon and not actually pink in hue. It will fade to bright white while it glides overhead.

The Pink Moon reportedly got its name because it corresponded with the early springtime bloom of the wildflower phlox subulata, which is commonly known as creeping phlox , moss phlox or “moss pink.”

There will be two supermoons in 2021. Keep an eye out for the second one on May 26.

Police responded to reports of shots being fired between two cars in the area of Eastchester Drive and Wendover Avenue shortly before 10:30 p.m.

Cameras show the driver of an SUV, heading east, blowing through signals and the traffic arms that were in the down position.

The North Carolina Bar Owners Association has planned a series of meetings.

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