NASA's Juno data points to new volcano on Jupiter moon Io
Washington, July 14 : Using data collected by NASA's Juno spacecraft, scientists have got clues to a previously undiscovered volcano on the Jupiter moon Io.
With its Jovian InfraRed Auroral Mapper (JIRAM) instrument, the Juno spacecraft found a new heat source close to the south pole of Io, NASA said on Saturday.
"The new Io hotspot JIRAM picked up is about 300 kilometres from the nearest previously mapped hotspot," Alessandro Mura, a Juno co-investigator from the National Institute for Astrophysics in Rome, Italy, said in a statement.
"We are not ruling out movement or modification of a previously discovered hot spot, but it is difficult to imagine one could travel such a distance and still be considered the same feature," Mura added.
The infrared data were collected on December 16, 2017, when Juno was about 470,000 kilometers away from the moon.
The Juno team will continue to evaluate data collected on the December 16 flyby, as well as JIRAM data that will be collected during future (and even closer) flybys of Io, NASA said.
Past NASA missions of exploration that have visited the Jovian system (Voyagers 1 and 2, Galileo, Cassini and New Horizons), along with ground-based observations, have located over 150 active volcanoes on Io so far.
Scientists estimate that about another 250 or so are waiting to be discovered.
Juno has logged nearly 235 million kilometres since entering Jupiter's orbit on July 4, 2016.
Juno's 13th science pass will be on July 16, the US space agency said.
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Bomb hoax: Security beefed up across Delhi
New Delhi (PTI): Security was beefed up in several parts of the national capital after more than 80 schools in the Delhi and NCR received bomb threats via emails, officials on Wednesday said.
Police said that so far all bomb threats have been found to be hoax, but they have stepped up security at all metro and railway stations, bus stands, and markets.
"We have stepped up security at every station. We have also alerted our staff to keep strict vigil on any suspicion activity," Deputy Commissioner of Police (railways) K P S Malhotra told PTI.
A senior security officer said, "A general advisory has been issued in the Delhi Metro network and CISF personnel have been asked to remain extra vigilant."
Another officer said that additional police force, along with paramilitary, has been deployed in several parts of Delhi and barricades have been installed at city borders.
"We got to know that the Delhi Fire Services, since 6 am, received over 80 bomb threat calls from different schools. We are investigating the matter," the officer said.
Delhi Fire Services chief Atul Garg said all calls are being attended diligently.
A source said that the Delhi Police Cyber Cell has tracked the IP address of the threatening mails.
The source claimed that the e-mail, which was originated from Russia, and may have been sent using a VPN, was aimed to create panic in Delhi.
Education Minister Atishi writing on X requested the parents not to panic.
"Some schools have received bomb threats this morning. Students have been evacuated and those premises are being searched by Delhi Police. So far nothing has been found in any of the schools. We are in constant touch with the Police and the schools," she wrote in a post.
"Would request parents and citizens not to panic. School authorities will be in touch with parents wherever needed," she added.
