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NASA’s Voyager 2 becomes second spacecraft to reach interstellar space

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Washington: Nasa’s Voyager 2 has become only the second human-made object to reach the space between stars.

Nasa said that the spacecraft left the region of the sun’s influence last month and is now beyond the outer boundary of the heliosphere, about 11 billion miles from Earth. It is trailing Voyager 1, which reached interstellar space – the vast, mostly empty area between star systems – in 2012.

The study, published in the journal Nature Astronomy, confirmed Voyager 2’s passage on November 5, 2018, into the ISM by noting a definitive jump in plasma density detected by a plasma wave instrument on the spacecraft.

The marked increase in plasma density is evidence of Voyager 2 journeying from the hot, lower-density plasma characteristic of the solar wind to the cool, higher-density plasma of interstellar space, the researchers said.

It is also similar to the plasma density jump experienced by Voyager 1 when it crossed into interstellar space, they said.

“In a historical sense, the old idea that the solar wind will just be gradually whittled away as you go further into interstellar space is simply not true,” said Professor Don Gurnett from the University of Iowa, and corresponding author on the study.

Data from the instrument on Voyager 2 also gives additional clues to the thickness of the heliosheath, the outer region of the heliosphere and the point where the solar wind piles up against the approaching wind in interstellar space, which Gurnett likens to the effect of a snowplow on a city street.

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SC to hear plea of Azam’s son against disqualification on Nov 6

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Azam Khan, Jaya Prada, Amar Singh, Kalyan Singh, Election Commission, Samajwadi Party, Khaki underwear, Uttar Pradesh news, Politics news

The Supreme Court on Wednesday said that it will consider on November 6 the petitions against the Allahabad High Court order on the disqualification of Mohammad Abdullah Azam Khan and holding bypoll in Suar Assembly segment in Uttar Pradesh.

A bench headed by Chief Justice SA Bobde and comprising Justices AS Bopanna and V Ramasubramanian scheduled the matter for hearing next week.

 

Khan, son of Samajwadi Party MP Azam Khan, was disqualified as an MLA after the High Court ordered his election void on December 16, 2019, as there was irregularity in the declaration of his date of birth. Khan had earlier also moved the apex court and the petition is still pending.

Last week, the High Court had directed the Election Commission to begin the process to conduct bypoll in the constituency in the absence of any interim order by the Supreme Court on Khan’s petition.

Khan has argued that the High Court has acted in haste in the backdrop that his petition against the disqualification order is yet to be decided by the top court, and also the direction to the poll body to conduct the bypoll is not correct.

The High Court, in the order, had said that the will of the people is supreme in a democracy and it cannot be lightly interfered with, and the Election Commission, under no circumstances, can frustrate the will of the people.

The High Court had noted that seat had remained vacant since December 2019, and also took a serious view of Election Commission failure to hold the bypoll.

Now, the Election Commission and Khan have moved the apex court to challenge this High Court order.

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