Voyager 2 went beyond the boundaries of the heliosphere on November 5 2018.
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It  detected when the solar wind was replaced by interstellar gas.
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According to Ed Stone, the mission scientific director, a professor at the California Institute of Technology,.
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the density of heliosphere particles sharply decreased, and cosmic radiation increased when Voyager 2 reached interstellar space.
The plasma - atoms devoid of electrons.
[72a5]. - outside the heliosphere is colder and denser than within.
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There is about 70% more cosmic radiation abroad.
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This was detected on 8 November.
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The magnetic field in the region just beyond the heliopause is parallel to the magnetic field inside the heliosphere.
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Data from both probes suggest that this arrangement of magnetic field lines is natural for the entire border of the Solar System.
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The equipment onboard Voyager 2 are a magnetic field detector, two particle recorders in different energy ranges and two instruments for studying plasma.
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Both probes have now confirmed that they are flying in plasma, which is much colder and denser than before.
In 2012, Voyager 1 noticed that after crossing the border, the plasma density was slightly higher than expected, indicating that the plasma in this region was somehow compressed.
A similar effect was noted by Voyager 2; scientists do not yet fully understand the mechanism of this phenomenon.
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Voyager 1 recorded a "hum" from space.
Stella Koch Ocker, an astrophysicist at Cornell University,.
[050a]. says the sound is weak and monotone as it is in a narrow frequency band.
The sounds are from substances from interstellar space: gas, plasma or cosmic dust.
Scientists will be able to better understand how the interstellar medium interacts with the solar wind and how interstellar space affects the heliosphere.
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The recording of the interstellar hum was transmitted to Earth in May 2021.
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It will take Voyager 2 at least 30,000 years to exit the solar system.
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Warning: these questons and answers are not all representative of the way questions will be asked and answered in the pilot, because some questions are compound and some answers do not include citations.

Q: When did Voyagers 1 and 2 cross into interstellar space?
A: Voyager 2 - November 5 2018. [eeebc42d-249c-4590-82a7-674939cec7df, 4f7a]A: Voyager 1 - 2012 [72a5ce0d-76fe-4c42-8301-a038e0bca26c]

Q: What was detected when the probes crossed the heliosphere boundary?
A: Solar wind was replaced by interstellar gas. [eeebc42d-249c-4590-82a7-674939cec7df]A: The density of heliosphere particles sharply decreased, and cosmic radiation increased [4f71beda-fe79-46c1-8130-0af55277a727, 55a82ea9-a41f-4588-b180-147d0293dfeb, af0b404f-88e6-4d5f-8be0-11d09b8896f3, 3b78ffc4-8120-41cb-8ff8-7af62fb52560, b98720d9-9d1f-4159-9c85-56be2393e649, 91c34e13-f3f0-47fa-a2d9-f842a03bfbeb, 8956bb3a-954e-4a51-bd5e-7c154a75edeb]A: The plasma outside the heliosphere is colder and denser than within. [4f71beda-fe79-46c1-8130-0af55277a727, 55a82ea9-a41f-4588-b180-147d0293dfeb, af0b404f-88e6-4d5f-8be0-11d09b8896f3, 3b78ffc4-8120-41cb-8ff8-7af62fb52560, b98720d9-9d1f-4159-9c85-56be2393e649, 91c34e13-f3f0-47fa-a2d9-f842a03bfbeb, 8956bb3a-954e-4a51-bd5e-7c154a75edeb]A: The magnetic field in the region just beyond the heliopause is parallel to the magnetic field  inside the heliosphere. [8956bb3a-954e-4a51-bd5e-7c154a75edeb, 72a5ce0d-76fe-4c42-8301-a038e0bca26c]

Q: What is plasma?
A: Atoms devoid of electrons [72a5ce0d-76fe-4c42-8301-a038e0bca26c]

Q: What is Ed Stone’s role?
A: The Voyager mission scientific director, a professor at the California Institute of Technology, [4f71beda-fe79-46c1-8130-0af55277a727, 8956bb3a-954e-4a51-bd5e-7c154a75edeb]

Q: How much more cosmic radiation is there in interstellar space?
A: 70 percent [4f71beda-fe79-46c1-8130-0af55277a727, 72a5ce0d-76fe-4c42-8301-a038e0bca26c, af0b404f-88e6-4d5f-8be0-11d09b8896f3, b98720d9-9d1f-4159-9c85-56be2393e649]

Q: What was confirmed about the magnetic fields?
A: Data from both probes suggest that the parallel arrangement of magnetic field lines is natural   for the entire border of the Solar System. [72a5ce0d-76fe-4c42-8301-a038e0bca26c]

Q: What equipment does the Voyager have onboard?
A: A magnetic field detector, two particle recorders in different energy ranges and two instruments for studying plasma. [b98720d9-9d1f-4159-9c85-56be2393e649, 8956bb3a-954e-4a51-bd5e-7c154a75edeb, 72a5ce0d-76fe-4c42-8301-a038e0bca26c]

Q: What did Voyager 1 note after crossing the boundary?
A: The plasma density was slightly higher than expected, indicating that the plasma in this region was somehow compressed [72a5ce0d-76fe-4c42-8301-a038e0bca26c]

Q: What did Voyager 1 record?
A: A hum from space [050a846c-adb8-442a-857a-4d2db857ce0c, 69fc2d94-e206-4ac1-ac64-4300f5776783]

Q: Who is Stella Ocker?
A: An astrophysicist at Cornell University, [050a846c-adb8-442a-857a-4d2db857ce0c]

Q: What did Ocker say about the hum?
A: The sound is weak and monotone as it is in a narrow frequency band. [050a846c-adb8-442a-857a-4d2db857ce0c]

Q: What is the source of the hum?
A: Substances from interstellar space: gas, plasma or cosmic dust. [050a846c-adb8-442a-857a-4d2db857ce0c, 69fc2d94-e206-4ac1-ac64-4300f5776783]

Q: How is this hum beneficial?
A: Scientists will be able to better understand how the interstellar medium interacts with the solar wind and how interstellar space affects the heliosphere. [050a846c-adb8-442a-857a-4d2db857ce0c, 69fc2d94-e206-4ac1-ac64-4300f5776783]

Q: When was it transmitted?
A: May 2021. [69fc2d94-e206-4ac1-ac64-4300f5776783]

Q: How long will it take Voyager 2 to exit the solar system?
A: 30,000 years [3b78ffc4-8120-41cb-8ff8-7af62fb52560]