Add news
March 2010 April 2010 May 2010 June 2010 July 2010
August 2010
September 2010 October 2010
November 2010
December 2010
January 2011
February 2011 March 2011 April 2011 May 2011 June 2011 July 2011 August 2011 September 2011 October 2011 November 2011 December 2011 January 2012 February 2012 March 2012 April 2012 May 2012 June 2012 July 2012 August 2012 September 2012 October 2012 November 2012 December 2012 January 2013 February 2013 March 2013 April 2013 May 2013 June 2013 July 2013 August 2013 September 2013 October 2013 November 2013 December 2013 January 2014 February 2014 March 2014 April 2014 May 2014 June 2014 July 2014 August 2014 September 2014 October 2014 November 2014 December 2014 January 2015 February 2015 March 2015 April 2015 May 2015 June 2015 July 2015 August 2015 September 2015 October 2015 November 2015 December 2015 January 2016 February 2016 March 2016 April 2016 May 2016 June 2016 July 2016 August 2016 September 2016 October 2016 November 2016 December 2016 January 2017 February 2017 March 2017 April 2017 May 2017 June 2017 July 2017 August 2017 September 2017 October 2017 November 2017 December 2017 January 2018 February 2018 March 2018 April 2018 May 2018 June 2018 July 2018 August 2018 September 2018 October 2018 November 2018 December 2018 January 2019 February 2019 March 2019 April 2019 May 2019 June 2019 July 2019 August 2019 September 2019 October 2019 November 2019 December 2019 January 2020 February 2020 March 2020 April 2020 May 2020 June 2020 July 2020 August 2020 September 2020 October 2020 November 2020 December 2020 January 2021 February 2021 March 2021 April 2021 May 2021 June 2021 July 2021 August 2021 September 2021 October 2021 November 2021 December 2021 January 2022 February 2022 March 2022 April 2022 May 2022 June 2022 July 2022 August 2022 September 2022 October 2022 November 2022 December 2022 January 2023 February 2023 March 2023 April 2023 May 2023 June 2023 July 2023 August 2023 September 2023 October 2023 November 2023 December 2023 January 2024 February 2024 March 2024 April 2024 May 2024 June 2024
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
26
27
28
29
30
News Every Day |

Earth receives signal ‘never seen before’ from ‘distant star’ 16,000 light-years away – and it’s baffled scientists

ASTRONOMERS are confused about an unusual radio signal from a distant star 16,000 light-years away.

The mysterious intermittent radio signal was found purely by chance.

Getty
Astronomers are puzzled about strange signals from across the galaxy[/caption]
NASA Goddard
Neutron stars contain the densest material that we can directly observe, says Nasa[/caption]

The odd signal from across the galaxy “isn’t like anything astronomers have seen before,” according to two space experts based in Australia.

The team chanced upon the signal while researching space using the Commonwealth Scientific and Industrial Research Organisation’s (CSIRO) radio telescope in Australia’s outback.

“It can survey large volumes of the universe very quickly. This makes it very well suited for detecting new and exotic phenomena,” said Manisha Caleb, a lecturer at the University of Sydney, and Emil Lenc
research scientist, Space and Astronomy, CSIRO.

BURSTS OF RADIO WAVES

“We sometimes detect sporadic bursts of radio waves originating from across the vast expanse of the universe,” they wrote on research based website The Conversation.

“We call them radio transients: some erupt only once, never to be seen again, and others flicker on and off in predictable patterns.

“We think most radio transients come from rotating neutron stars known as pulsars, which emit regular flashes of radio waves, like cosmic lighthouses.”

Neutron stars are the remnants of the cores of huge stars that have reached the end of their lives.

“Recently, we discovered a radio transient that isn’t like anything astronomers have seen before,” the experts added.

STRANGE FLASHES

“Not only does it have a cycle almost an hour-long – the longest ever seen – but over several observations we saw it sometimes emitting long, bright flashes, sometimes fast, weak pulses – and sometimes nothing at all.

“We can’t quite explain what’s going on here. It’s most likely a very unusual neutron star, but we can’t rule out other possibilities.”

The suspected neutron star has been named ASKAP J1935+2148.

The mystery object is located in the plane of the Milky Way, some 15,820 light-years from Earth, according to Science Alert.

“The signals themselves are like none ever seen before – the star goes through periods of strong pulses, periods of weak pulses, and periods of no pulses at all,” the website added.

What is a neutron star?

Neutron stars start their lives with a bang

Here’s an odd fact: neutron stars can spin as fast as blender blades!

Neutron stars are the remains of the cores of massive stars that have reached the end of their lives.

When a star bigger than our Sun runs out of fuel at the end of its life, its core collapses while the outer layers are blown off in a supernova explosion.

And, what is left behind depends on the mass of the original star.

So, if it’s roughly seven to 19 times the mass of our Sun, we are left with a neutron star.

But, if it started with more than 20 times the mass of our Sun, it becomes a black hole.

Nasa estimates there are as many as a billion neutron stars in our Milky Way galaxy.

Neutron stars are the densest material that we can directly observe.

Some neutron stars, called pulsars, emit streams of light that we see as flashes.

The fastest known pulsar, named PSR J1748-2446ad, spins 43,000 times every minute. That’s twice as fast as the typical household blender!

Sources: Nasa and Space.com

Further observations were undertaken at a more sensitive radio telescope in South Africa.

But the astronomers remain baffled.

Radio waves from ASKAP J1935+2148 were coming out like a “corkscrew” as the signal traveled through space.

“The origin of a signal with such a long period remains a profound mystery, with a slow-spinning neutron star the prime suspect,” said Caleb and Lenc.

OLD STAR

“We cannot rule out the possibility the object is a white dwarf – the Earth-sized cinder of a burnt-out star that has exhausted its fuel.

“White dwarfs often have slow rotation periods, but we don’t know of any way one could produce the radio signals we are seeing here.

“What’s more, there are no other highly magnetic white dwarfs nearby, which makes the neutron star explanation more plausible.

“One explanation might be that the object is part of a binary system [where two stars orbit around a common centre of mass] in which a neutron star or white dwarf orbits another unseen star.”

They stressed that further research was needed to establish what the mystery object is.

It’s likely there are many other objects like it elsewhere in our galaxy, waiting to be discovered.

Researchers, Australia

The intriguing findings should prompt a further look at decades-old research into neutron stars or white dwarfs, and how they emit radio waves, the experts suggested.

“We don’t know how long ASKAP J1935+2148 has been emitting radio signals,” the pair added.

“We were quite fortunate we happened to catch sight of ASKAP J1935+2148. It’s quite likely there are many other objects like it elsewhere in our galaxy, waiting to be discovered.”

The team’s research is published in Nature Astronomy.

LUNAR LANDER

It comes amid an update about the lunar lander named Odysseus which touched down near the moon’s South Pole in February.

Astrophysicist Jack Burns, of a public research university in Boulder, Colorado, hailed it as the “dawn of radio astronomy from the moon.”

Burns is co-investigator on the radio experiment that flew aboard Odysseus called Radio wave Observations at the Lunar Surface of the photo Electron Sheath (ROLSES).

Antennas will take data and send that back to Earth, he told the University of Colorado today.

“We viewed Earth as an exoplanet, or a planet orbiting another star,” Burns said in an update.

“That enables us to ask: What would our radio emissions from Earth look like if they came from an extraterrestrial civilization on a nearby exoplanet?”

NASA has given the green light to a second ROLSES experiment, which will fly on another lander, most likely in 2026.

Россия

«Мы можем захватить любую страну». Стоит ли России бояться голода у соседей

Meet Slovenia’s gorgeous Wags, from a mummy blogger and influencer to a professional tennis star

Commentator’s curse strikes immediately as LIV golf hothead Tyrrell Hatton swears live on TV after losing it at the WIND

‘I’ll have to talk to my agent’ says Harry Kane as England star offered transfer from Bayern during press conference

Rashan Gary Showed No Concern When Asked About Caleb Williams

Ria.city






Read also

Pro-Life Senators Fight to Keep Hyde Amendment, Stop Tax-Funded Abortions

How to Watch Taylor Montgomery at the Rocket Mortgage Classic: Live Stream, TV Channel, Odds

TD SYNNEX: Fiscal Q2 Earnings Snapshot

News, articles, comments, with a minute-by-minute update, now on Today24.pro

News Every Day

Who could England get next in Euro 2024 knockout stage after going through to last-16?

Today24.pro — latest news 24/7. You can add your news instantly now — here


News Every Day

Rashan Gary Showed No Concern When Asked About Caleb Williams



Sports today


Новости тенниса
Уимблдон

Российские теннисисты подпишут декларацию о нейтралитете для участия в Уимблдоне



Спорт в России и мире
Москва

Компания «КЕНГУРУ.ПРО» стала лучшим производителем спортивного оборудования



All sports news today





Sports in Russia today

Москва

СберСтрахование жизни выступила партнёром международной олимпиады по страхованию


Новости России

Game News

Dustborn let me smash fascists and flirt with my situationship on a road trip across America


Russian.city


Москва

Дорожная обстановка в Подмосковье вечером во вторник составляет 5 баллов


Губернаторы России
Спорт

«Спорт вдохновляет»: судебные приставы Кузбасса приняли участие в молодежном спортивно-туристическом мероприятии «Гонка профсоюзов - 2024»


В Солнечногорске стартовал автопробег по местам боевой славы

Вебкам-студия MONTANA в Санкт-Петербурге

«Я ВАС СПРАШИВАЮ, КТО ВЕРБОВАЛ ВАЗ, ЗЕЛЕНСКОГО?!» Записки Мессии по технике безопасности.

Филиал № 4 ОСФР по Москве и Московской области информирует: Более 12 тысяч жителей Москвы и Московской области получают повышенную пенсию за работу в сельском хозяйстве


Поэт. Радио Поэт. Стихи поэтов. Русские поэты. Писатели и поэты. Известные поэты. Поэт года. Поэты России. Лучшие поэты. Поэт песенник.

В АО "Желдорреммаш" введен единый Стандарт по метрологическому обеспечению в производстве.

«Летние вечера в Елабуге» Бориса Березовского в этом году пройдут с 4 по 7 июля

4-летний сын Тимати научился ездить на мотоцикле. Смотри видео


Грузия сыграла вничью с Чехией на Евро, Калинская вышла в финал Берлина. Главное к вечеру

В Беларуси отреагировали на неожиданное решение Арины Соболенко

Российские теннисисты подпишут декларацию о нейтралитете для участия в Уимблдоне

Елена Рыбакина впервые в 2024 году сыграла на Уимблдоне



Вебкам-студия MONTANA в Санкт-Петербурге

Организованных тургруп из Новосибирска в Крыму нет

Главный врач клиники "Мегастом", стоматолог Владимир Лосев: в каком возрасте оптимально устанавливать брекеты

Совладельцы инвестгруппы "Русские фонды" отправлены под домашний арест


Поэт. Радио Поэт. Стихи поэтов. Русские поэты. Писатели и поэты. Известные поэты. Поэт года. Поэты России. Лучшие поэты. Поэт песенник.

В Тульской области завершился Кинофестиваль «Движение по вертикали» памяти Станислава Говорухина

Навка: во время болезни Заворотнюк возили по Москве только в парандже

Ким Чен Ын приедет в Россию. Когда и при каких условиях - сообщили в МИД


На СВО погиб житель Ульяновской области, участвовавший в Параде Победы в Москве

Аварийное здание снесли в Сергиево-Посадском округе

Система прогнила. Эксперты бьют тревогу: Америка "осоветилась" – и взяла от СССР только худшее

Более 10 тысяч жителей Дубны обеспечены надежным электроснабжением



Путин в России и мире






Персональные новости Russian.city
Певец

Певец Шарлот из СИЗО анонсировал гастрольный тур на июль



News Every Day

Meet Slovenia’s gorgeous Wags, from a mummy blogger and influencer to a professional tennis star




Friends of Today24

Музыкальные новости

Персональные новости