By Jaspreet Singh and Max A. Cherney Chip design software company Synopsys on Wednesday named 25-year-veteran Sassine Ghazi

A dead “vampire” star is feeding on a nearby companion and expelling cannonballs and its behaviour has left astronomers stunned. The dead star is located around 4,500 light-years away and, until now, has baffled astronomers with its unusual behaviour. It is a rapidly spinning neutron star, otherwise known as a pulsar, that has been given the name PSR J1023+0038, shortened to J1023. It emits radiation from both its poles that occasionally reach Earth and also appears to have two different “settings” of brightness. Initially, the behaviour of J1023 confused experts, but now they believe that the stark difference in brightness levels has to do with the star launching out matter over short spaces of time. Maria Cristina Baglio, leader of the research team and scientist at New York University, Abu Dhabi, said in a statement: “We have witnessed extraordinary cosmic events where enormous amounts of matter, similar to cosmic cannonballs, are launched into space within a very brief time span of tens of seconds from a small, dense celestial object rotating at incredibly high speeds.” In addition to the pulsar emitting matter, over the last 10 years, scientists have witnessed the star pulling material from its companion star. The material it is stealing forms a structure called an accretion disk that forms around the star itself. Since it began feeding, the star has been alternating between between “low” and “high” power modes. During moments of high power, the star shines brightly with a variation of X-rays, ultraviolet and visible light. During low power, it emits radio waves and appears much dimmer. In June 2021, experts witnessed a star shooting out hot, luminous matter that has been compared to a cosmic cannonball as the star continually switched modes. J1023 has fascinated experts, who have been able to explain the way the star behaves by observing it. Despite solving many of its mysteries, the scientists aren’t done with it yet. With the Extremely Large Telescope (ELT) in northern Chile currently under construction, it is hoped that when it is ready, scientists will once more be able to observe the pulsar. Sergio Campana, research co-author and Research Director at the Italian National Institute for Astrophysics Brera Observatory, said: “The ELT will allow us to gain key insights into how the abundance, distribution, dynamics and energetics of the inflowing matter around the pulsar are affected by the mode switching behavior.” Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

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MISSISSAUGA, Ontario--(BUSINESS WIRE)--Sep 12, 2023--

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BERKELEY, Calif.--(BUSINESS WIRE)--May 11, 2023--

SpaceX has launched a new service for its space-based Starlink internet service that allows customers to connect from nearly anywhere on the planet while in motion. Starlink Mobility uses a receiver that has a wide field of view and improved GPS to connect to SpaceX’s constellation of more than 4,000 low-Earth orbit satellites. SpaceX boss Elon Musk tweeted that it works “almost everywhere on Earth”, including the middle of oceans and deserts. The first customers to try out Starlink Mobility are a fleet of school buses in Arizona, SpaceX said, allowing students to “stay connected and complete their homework” while travelling to and from school. SpaceX said the new service is “ideal for mobile businesses and public sector use cases, including trucking, buses, shuttles, and emergency response”. Subscribers to Starlink Mobility, which costs $250 per month on top of a one-time hardware fee of $2,500, receive network priority over other users during peak hours, meaning emergency responders should avoid losing internet connection. “Starlink Mobility provides 100 per cent coverage in your country and every country where Starlink service is available across the globe,” SpaceX states on its website. “Plans can also be used on the ocean, with connectivity available in the vast majority of the Earth’s oceans and seas.” The Starlink satellite dish, which is a next-generation version of its standard hardware, is designed to be permanently installed on a customer’s vehicle, offering the same download speeds of up to 220 Mbps. SpaceX achieved global coverage of its Starlink internet network last year, four years after launching the first batch of satellites into space. Despite this, some countries have blocked Starlink from operating in its country, such as China and Iran. SpaceX is hoping to launch a satellite-to-cellphone service that would allow users to connect to its internet constellation without the need for additional hardware, however some service providers fear that it will interfere with existing wireless services. AT&T in the US urged the Federal Communications Commission (FCC) to reject SpaceX and T-Mobile’s proposal, claiming it would “jeopordise or inhibit” its own terrestrial service. Testing of the satellite-to-cell service is expected to begin later this year. Read More SpaceX launches two missions just hours apart ‘It’s becoming like an airport’: How SpaceX normalised rocket launches Apple launches new campaign about the dangers of losing your health data Meta Ireland to cut about 490 jobs This is how AI ‘superintelligence’ would replace us as the dominant lifeform on Earth

SANTA MONICA, Calif.--(BUSINESS WIRE)--Sep 1, 2023--

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