Marree Man still going strong as NASA reveals satellite image

Paris, Jul 2: Several interacting exoplanets have already been spotted by satellites. But a new breakthrough has been achieved with, for the first time, the detection directly from the ground of an extrasolar system of this type.

An international collaboration including CNRS researchers has discovered an unusual planetary system, dubbed WASP-148, using the French instrument SOPHIE at the Observatoire de Haute-Provence (CNRS/Aix-Marseille Universite).

The scientists analysed the star's motion and concluded that it hosted two planets, WASP-148b and WASP-148c. The observations showed that the two planets were strongly interacting, which was confirmed from other data.

Whereas the first planet, WASP-148b, orbits its star in nearly nine days, the second one, WASP-148c, takes four times longer. This ratio between the orbital periods implies that the WASP-148 system is close to resonance, meaning that there is enhanced gravitational interaction between the two planets. And it turns out that the astronomers did indeed detect variations in the orbital periods of the planets.

While a single planet, uninfluenced by a second one, would move with a constant period, WASP-148b and WASP-148c undergo acceleration and deceleration that provides evidence of their interaction.

The study will shortly be published in the journal Astronomy & Astrophysics.

The World Health Organisation (WHO) on Saturday launched a Health Alert on WhatsApp where over 1.5 billion users can ask questions and they will be provided with reliable information about new coronavirus 24/7.

This will also serve government decision-makers by providing the latest numbers and situation reports, WhatsApp said in a statement.

To contact the WHO Health Alert, save the number +41 79 893 1892 in phone contacts, and then simply text the word 'Hi' in a WhatsApp message to get started.

The service responds to a series of prompts and will be updated daily with the latest information.

"You can also visit the WhatsApp Coronavirus Information Hub at whatsapp.com/coronavirus," and click on the WHO link on the homepage to open up a chat with the WHO Health Alert if you have WhatsApp installed," said the micro-blogging platform.

The WHO Health Alert will provide official information on topics such as how to protect yourself from infection, travel advice, and debunking new coronavirus myths.

The service is initially launching in English but will be available in all six languages within the coming weeks (English, Arabic, Chinese, French, Russian and Spanish.)

"Digital technology gives us an unprecedented opportunity for vital health information to go viral and spread faster than the pandemic. We are proud to have partners like Facebook and WhatsApp, that are supporting us in reaching billions of people with important health information," said Dr Tedros Adhanom Ghebreyesus, Director-General of the WHO.

The WHO Health Alert is the latest official NGO or government helpline to become available on WhatsApp, joining the Singapore Government, The Israel Ministry of Health, the South Africa Department of Health, and KOMINFO Indonesia.

Earlier this week, WhatsApp, in partnership with the World Health Organization, UNICEF, and UNDP, launched the WhatsApp Coronavirus Information Hub. The hub offers general tips and resources for users around the world to reduce the spread of rumours and connect with accurate health information.

WhatsApp also announced a $1 million grant to the International Fact Checking Network to support fact-checking for the #CoronaVirusFacts Alliance.

In a first, the Supreme Court on Friday allowed the service of summons and notices, a necessity in almost all legal proceedings, through instant messenger like WhatsApp as well as by e-mail and fax.

A bench headed by Chief Justice SA Bobde observed that it has been brought to the notice of the court that it is not feasible to visit post offices for service of notices, summons, and pleadings. The bench also comprising Justices AS Bopanna and R Subhash Reddy observed that notice and summons should be sent through e-mail on the same day along with instant message through WhatsApp and other phone messenger services.

The bench clarified that all methods should be deployed for a valid service on the party. "Two blue ticks would convey that the receiver has seen the notice," noted the bench.

The bench declined the request of the Attorney General for specifically naming WhatsApp as a mode of effectuating service. The top court noted that it would not be practical to specify only WhatsApp. The apex court also permitted RBI to extend the validity of cheques in the backdrop of lockdown to contain the coronavirus outbreak.

Senior advocate V Giri representing RBI informed the bench that he had circulated the note regarding validity of a cheque as directions issued on the previous hearing.

The bench noted that it will be in discretion of the RBI to issue orders which are suitable to alter the validity of the period of a cheque.

During an earlier hearing on the matter on July 7, the Attorney General contended before the top court that the Centre had some reservations in connection with the utilization of mobile applications like WhatsApp and other apps for service of summons. The Centre's top law officer informed the apex court that these apps claimed to be encrypted, and they were not trustworthy.

The RBI counsel had contended before the top court that it was considering clarifying the validity of a cheque which has been reduced to 3 months from 6 months.