Strange Ripples Have Been Detected at The Edge of The Solar System

sciencealert.com/ ^ | 11 October 2022 By | MICHELLE STARR

[BenLurkin]

Data from a spacecraft orbiting Earth has revealed ripple structures in the termination shock and heliopause: shifting regions of space that mark one of the boundaries between the space inside the Solar System, and...interstellar space.

...Sun affects the space around it...solar wind, a constant supersonic flow of ionized plasma. It blows out past the planets and the Kuiper Belt, eventually petering out in the great emptiness between the stars.

The point at which this flow falls below the speed at which sound waves can travel through the diffuse interstallar medium is called the termination shock, and the point at which it is no longer strong enough to push back against the very slight pressure of interstellar space is the heliopause.

Both Voyager probes have crossed the heliopause and are, effectively, now cruising through interstellar space, providing us the first in situ measurements of this shifting boundary.

NASA's Interstellar Boundary Explorer (IBEX)

IBEX measures energized neutral atoms, which are created when the Sun's solar wind collides with the interstellar wind at the Solar System boundary. Some of those atoms are catapulted further out into space, while others are flung back at Earth. Once the strength of the solar wind that produced them is taken into account, energized neutral particles that return our way can be used to map the shape of the boundary, a bit like cosmic echolocation.

Previous maps of the structure of the heliosphere have relied on long-scale measures of the evolution of solar wind pressure and energetic neutral atom emissions, which resulted in a smoothing of the boundary in both space and time. But in 2014, over a period of roughly six months, the dynamic pressure of the solar wind increased by roughly 50 percent.

[Deaf Smith]

79 posts and no one noted in third paragraph that sound waves exist in space?

[SunkenCiv]

Thanks BenLurkin. A twofer.

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[Nateman]

...Data from a spacecraft orbiting Earth ...

Over 80 posts and nobody mentioned this glaring error? These probes are billions of miles away! They don't even orbit the Sun anymore much less the Earth!

[NetAddicted]

Try to read later.

[minnesota_bound]

Solar ripples caused by the sun blasting energy outward along with being the center of a gravity well.
Think a big pebble plucked into the galaxy space time pond.

[brownsfan]

Here’s a primer:

http://www.bumwine.com/

[Blue Highway]

Read every entry on list but they didn’t list Ripple. These bumwines sound toxic and no wonder I’ve never dared to try them and I’m usually down for cheap alcohol. After reading this I’ll pass on any of them.

[brownsfan]

There’s a link “others”. It has Ripple along with a picture of Fred Sanford.

http://www.bumwine.com/others.html

I’ve had Boone’s Farm and Richard’s Wild Irish Rose. Boone’s was just kid stuff. Richard’s was some real toxic stuff.

[Candor7]

Lucy, we have missed you , and wonder how you are.

Some of us on the old list still ping each other.....you did good work for so many years.

All the Best to you , and Happy New Year,have a Brilliant 2025 , know that you will always be in our hearts...PM me here ( send me a Freep Mail) so I can know how you are.