RESTON, Va.--(BUSINESS WIRE)--Jul 19, 2023--

It's true: You can add mentions in an Instagram Story even after it's posted. And

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.

PITTSBURGH--(BUSINESS WIRE)--Aug 16, 2023--

AUSTIN, Texas--(BUSINESS WIRE)--Aug 10, 2023--

Andrew Tate asserts he had no prior interaction with woman who claims he is her husband

Trading on Japan’s first carbon-credit exchange started Wednesday, as the nation looks to put a price on emissions

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SpaceX has successfully launched Starship, the world’s most powerful rocket, for the first ever time. The spacecraft took off from Texas early on Saturday local time. It marked SpaceX’s second attempt to launch the spacecraft, after a previous test in April saw the rocket exploded soon after launch. The booster that carried the spacecraft up towards orbit exploded after it detached from the main spacecraft. SpaceX said that it had known there was a chance that the booster would be destroyed in the launch. But the main part of the ship successfully carried on towards the edge of space. Eventually, SpaceX hopes that Starship will fly to the Moon and help with missions to Mars. But first it must undergo a series of uncrewed tests to ensure it is safe. Elon Musk - SpaceX‘s founder, chief executive and chief engineer - also sees Starship as eventually replacing the company’s workhorse Falcon 9 rocket as the centerpiece of its launch business that already lofts most of the world’s satellites and other commercial payloads into space. NASA, SpaceX‘s primary customer, has a considerable stake in the success of Starship, which the US space agency is counting on to play a central role in its human spaceflight program, Artemis, successor to the Apollo missions of more than a half century ago that put astronauts on the moon for the first time. Starship’s towering first-stage booster, propelled by 33 Raptor engines, puts the rocket system’s full height at some 400 feet (122 meters) and produces thrust twice as powerful as the Saturn V rocket that sent the Apollo astronauts to the moon. SpaceX is aiming to at least exceed Starship-Super Heavy’s performance during its April 20 test flight, when the two-stage spacecraft blew itself to bits less than four minutes into a planned 90-minute flight. That flight went awry from the start. SpaceX has acknowledged that some of the Super Heavy’s 33 Raptor engines malfunctioned on ascent, and that the lower-stage booster rocket failed to separate as designed from the upper-stage Starship before the flight was terminated. The company’s engineering culture, considered more risk-tolerant than many of the aerospace industry’s more established players, is built on a flight-testing strategy that pushes spacecraft to the point of failure, then fine-tunes improvements through frequent repetition. A failure at any point in the test flight would be a major concern for NASA, which is counting on SpaceX‘s rapid rocket development ethos to swiftly get humans to the moon in the U.S. competition with China’s lunar ambitions. Judging the success or failure of the outcome may be less than clear-cut, depending on how far the spacecraft gets this time. NASA Administrator Bill Nelson, who has made the China rivalry a key need for speed, compared Starship’s test campaign with the success of SpaceX‘s past rocket development efforts. “How did they develop the Falcon 9? They went through many tests, sometimes it blew up,” Nelson told Reuters on Tuesday. “They’d find out what went wrong, they’d correct it then go back.” The combined spacecraft in April reached a peak altitude of roughly 25 miles (40 km), only about halfway to space at its target altitude of 90 miles (150 km), before bursting into flames. Musk has said that an internal fire during Starship’s ascent damaged its engines and computers, causing it to stray off course, and that an automatic-destruct command was activated some 40 seconds later than it should have to blow up the rocket. The launch pad itself was shattered by the force of the blastoff, which also sparked a 3.5-acre (1.4-hectare) brush fire. No one was injured. SpaceX has since reinforced the launch pad with a massive water-cooled steel plate, one of dozens of corrective actions that the U.S. Federal Aviation Administration required before granting a launch license on Wednesday for the second test flight. Additional reporting by agencies Read More SpaceX launches ‘zero fuel’ engine into space SpaceX is launching the world’s biggest rocket – follow live SpaceX to launch world’s biggest rocket again after first attempt ended in explosion The world’s most powerful rocket should launch imminently, Elon Musk says Why Apple is working hard to break into its own iPhones OpenAI co-founder Sam Altman ousted as CEO

FOSTER CITY, Calif.--(BUSINESS WIRE)--Jul 13, 2023--

The world's biggest music publisher Universal, whose catalogue includes artists from Taylor Swift to the Beatles, announced a deal on Wednesday it says will shake up the...

As Silicon Valley and beyond is gripped by the fervor of artificial intelligence, Melinda French Gates is raising the alarm that more women must be involved in developing these tech tools.