NASA's Voyager 2 probe nearing interstellar space

Agencies
October 7, 2018

NASA's Voyager 2 probe is approaching interstellar space and has detected an increase in cosmic rays that originate outside our solar system, the US space agency said.

Launched in 1977, Voyager 2 is a little less than 17.7 billion kilometres from Earth, or more than 118 times the distance from Earth to the Sun. Since 2007 the probe has been travelling through the outermost layer of the heliosphere -- the vast bubble around the Sun and the planets dominated by solar material and magnetic fields.

Voyager scientists have been watching for the spacecraft to reach the outer boundary of the heliosphere, known as the heliopause. Once Voyager 2 exits the heliosphere, it will become the second human-made object, after Voyager 1, to enter interstellar space.

Since late August, the Cosmic Ray Subsystem instrument on Voyager 2 has measured about a five per cent increase in the rate of cosmic rays hitting the spacecraft compared to early August.

The probe's Low-Energy Charged Particle instrument has detected a similar increase in higher-energy cosmic rays. Cosmic rays are fast-moving particles that originate outside the solar system. Some of these cosmic rays are blocked by the heliosphere, so mission planners expect that Voyager 2 will measure an increase in the rate of cosmic rays as it approaches and crosses the boundary of the heliosphere.

In May 2012, Voyager 1 experienced an increase in the rate of cosmic rays similar to what Voyager 2 is now detecting. That was about three months before Voyager 1 crossed the heliopause and entered interstellar space. However, Voyager team members note that the increase in cosmic rays is not a definitive sign that the probe is about to cross the heliopause.

Voyager 2 is in a different location in the heliosheath -- the outer region of the heliosphere -- than Voyager 1 had been, and possible differences in these locations mean Voyager 2 may experience a different exit timeline than Voyager 1.

The fact that Voyager 2 may be approaching the heliopause six years after Voyager 1 is also relevant because the heliopause moves inward and outward during the Sun's 11-year activity cycle.

Solar activity refers to emissions from the Sun, including solar flares and eruptions of material called coronal mass ejections. During the 11-year solar cycle, the Sun reaches both a maximum and a minimum level of activity.

"We're seeing a change in the environment around Voyager 2, there's no doubt about that," said Ed Stone, Voyager Project Scientist.

"We're going to learn a lot in the coming months, but we still don't know when we'll reach the heliopause. We're not there yet -- that is one thing I can say with confidence," said Stone.

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News Network
December 5,2025

Mangaluru: In a significant step to curb online hate and intimidation, Mangaluru City Police have registered a suo motu case against multiple Instagram accounts accused of circulating alleged provocative and threatening content.

While monitoring social media activity on Tuesday, Kankanady Town PSI Anitha Nikkam identified the Instagram handle ‘team_targetttt_900’ for posting a hate message alongside images of lethal weapons. Another account, ‘team_nagara_900’, allegedly shared a threatening post targeting activist Bharath Kumdelu, tagging additional pages such as KARAVALI-OFFICIAL.

Several other accounts — including ‘immu_bhai.fan’, ‘target_boy_900’, ‘kings_of_manglore’, ‘team_target_boys.900’, ‘arshad_mangalore’, ‘target_ka19_ullal’, ‘team_target__’, ‘troll_tigersz_900’, ‘tr_group_900’, and ‘team_target_900’ — are also under scrutiny for spreading similar inflammatory material, police said.

Authorities have urged citizens, especially young social media users, to report suspicious pages and avoid engaging with groups that glorify violence or threaten individuals. Online hate can quickly escalate into real-world harm, and police stress that sharing or promoting such content can attract legal consequences.

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News Network
November 24,2025

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Israeli forces have pushed over the Syrian frontier, erecting a checkpoint and stopping vehicles in the southwestern city of Quneitra, in yet another breach of the Arab country’s sovereignty.

The violation took place on Sunday, when the troops made their way across the border, setting up the outpost near the Ain al-Bayda junction in northern Quneitra, Syrian outlets reported.

According to the al-Ikhbariya paper, an Israeli detachment positioned itself at the junction, halting cars and conducting searches.

The Syrian Arab News Agency (SANA) reported that three Israeli military vehicles then moved further into the northern countryside, deploying between the town of Jubata al-Khashab and the villages of Ofaniya and Ain al-Bayda. The agency added that a separate Israeli unit mounted a new incursion in the central region, approaching the villages of Umm Batina and al-Ajraf.

Residents said such activities have surged in recent months, pointing to Israeli advances onto farmland, leveling of extensive forested areas, arrests, and spread of mobile checkpoints.

The Israeli regime began markedly increasing its military aggression against Syria last year.

The escalation coincided with increasingly ferocious onslaughts throughout the country by the so-called Hay'at Tahrir al-Sham (HTS) Takfiri terrorist group, which the government of President Bashar al-Assad had confined to northwestern Syria. The HTS, however, managed to overthrow the government as the Israeli attacks would pummel the country’s civilian and defensive infrastructure.

Various reports have shown that, during the escalation, the regime conducted more than 1,000 airstrikes on the Syrian territory and over 400 ground raids into the south.

Following the collapse of the Assad government, Tel Aviv also widened its grip over the occupied Golan Heights by taking control of a demilitarized buffer zone, in defiance of a 1974 Disengagement Agreement. Earlier this month, senior Israeli officials, including Prime Minister Benjamin Netanyahu, visited the buffer zone, prompting expressions of alarm on the part of the United Nations.

The United States, the regime’s biggest ally, has, meanwhile, been fraternizing the HTS head Abu Mohammed al-Jolani amid the widely reported prospect of rapprochement with Tel Aviv.

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News Network
December 4,2025

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Domestic carrier IndiGo has cancelled over 180 flights from three major airports — Mumbai, Delhi and Bengaluru — on Thursday, December 4, as the airline struggles to secure the required crew to operate its flights in the wake of new flight-duty and rest-period norms for pilots.

While the number of cancellations at Mumbai airport stands at 86 (41 arrivals and 45 departures) for the day, at Bengaluru, 73 flights have been cancelled, including 41 arrivals, according to a PTI report that quoted sources.

"IndiGo cancelled over 180 flights on Thursday at three airports-Mumbai, Delhi and Bengaluru," the source told the news agency.

Besides, it had cancelled as many as 33 flights at Delhi airport for Thursday, the source said, adding, "The number of cancellations is expected to be higher by the end of the day."

The Gurugram-based airline's On-Time Performance (OTP) nosedived to 19.7 per cent at six key airports — Delhi, Mumbai, Chennai, Kolkata, Bengaluru and Hyderabad — on December 3, as it struggled to get the required crew to operate its services, down from almost half of December 2, when it was 35 per cent.

"IndiGo has been facing acute crew shortage since the implementation of the second phase of the FDTL (Flight Duty Time Limitations) norms, leading to cancellations and huge delays in its operations across the airports," a source had told PTI on Wednesday.

Chaos continued at several major airports for the third day on Thursday because of the cancellations.

A spokesperson for the Kempegowda International Airport (KIA) in Bengaluru said that 73 IndiGo flights had been cancelled on Thursday.

At least 150 flights were cancelled and dozens of others delayed on Wednesday, airport sources said, leaving thousands of travellers stranded, according to news agency Reuters.

The Directorate General of Civil Aviation (DGCA) has said it is investigating IndiGo flight disruptions and has asked the airline to submit the reasons for the current situation, as well as its plans to reduce flight cancellations and delays.

It may be mentioned here that the pilots' body, Federation of Indian Pilots (FIP), has alleged that IndiGo, despite getting a two-year preparatory window before the full implementation of new flight duty and rest period norms for cockpit crew, "inexplicably" adopted a "hiring freeze".

The FIP said it has urged the safety regulator, the DGCA, not to approve airlines' seasonal flight schedules unless they have adequate staff to operate their services "safely and reliably" in accordance with the New Flight Duty Time Limitations (FDTL) norms.

In a letter to the DGCA late on Wednesday, the FIP urged the DGCA to consider re-evaluating and reallocating slots to other airlines, which have the capacity to operate them without disruption during the peak holiday and fog season if IndiGo continues to "fail in delivering on its commitments to passengers due to its own avoidable staffing shortages."

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