Astronomers discover repeating radio bursts from distant ‘dead’ galaxy
(Jiojio/Getty Images)
(LONDON) — Astronomers have detected fast-repeating radio bursts from a distant “dead” galaxy that should not contain the energy to produce these types of signals, according to new research.
The source of the fast radio bursts (FRBs) — sudden flashes of radio waves that last just milliseconds — has previously been linked to young, magnetized neutron stars that expend a lot of energy when they are forming. But the dormant galaxy from which these radio bursts are originating should not contain this type of young star, according to a paper published Wednesday in The Astrophysical Journal Letters.
Researchers expect FRBs to originate inside of a galaxy and, because these FRBs are so energetic, within a region of a galaxy in which new stars are actively forming, Vishwangi Shah, a PhD student in the Department of Physics at McGill University in Montreal, told ABC News. These FRBs, named FRB 20240209A, are located outside of the massive ancient elliptical galaxy it is associated with that only contains old and dead stars, Shah said.
“This discovery was really surprising and exciting,” she said.
Shah and her team used the Canadian Hydrogen Intensity Mapping Experiment — also known as the CHIME telescope — to detect the multiple bursts from the same location, Shah said. But because the CHIME telescope could not pinpoint the exact location of the radio waves, they used the Gemini North telescope in Hawaii to precisely pinpoint where the bursts were coming from, theorizing that there was a faint galaxy they were not yet aware of.
“There’s no other galaxy there,” Shah said.
The ancient elliptical galaxy where astronomers discovered the radio waves is about 2 billion light-years from Earth and is about 11.3 billion years old, according to the paper.
Thousands of radio bursts have been recorded since 2007, when they were first discovered by astronomers, Shah said, adding that they only know the origins of about 100 of them — all near actively forming stars.
“This particular FRB is really an outlier, and it challenges our theories about what is producing FRBs,” Shah said.
Astronomers hypothesize that the FRBs could be originating from two supernoir remnants, called neutron stars, that are merging or collapsing onto themselves, Shah said.
Continuing to study these FRBs will allow researchers to further understand the space between its origination and the Milky Way as well as what is happening in distant regions of space, Shah said.
“That is why it is a really useful probe of our universe,” she said.
DECEMBER 30: Palestinians taking shelter in tent camps are battling harsh weather conditions as heavy rainfall has flooded their tents on December 30, 2024 in Deir al-Balah, Gaza. The ongoing Israeli attacks on Gaza are worsen by the severe storms, which have led to widespread flooding in the camps where thousands have sought shelter. (Photo by Ashraf Amra/Anadolu via Getty Images)
(LONDON) — Rebel forces in Syria are building a transitional government after toppling the regime of President Bashar Assad in a lightning-quick advance across the country.
The Israel Defense Forces continues its intense airstrike and ground campaigns in Gaza, particularly in the north of the strip around several Palestinian hospitals.
Meanwhile, the November ceasefire in Lebanon is holding despite ongoing Israeli airstrikes on Hezbollah targets, which Israeli officials say are responses to ceasefire violations by the Iranian-backed militant group.
Tensions remain high between Israel and Iran after tit-for-tat long-range strikes in recent months and threats of further military action from both sides. The IDF and the Yemeni Houthis also continue to exchange attacks.
Ukraine foreign minister meets Syrian leader in Damascus
Ukrainian Foreign Minister Andrii Sybiha on Monday met with Syria’s de facto leader Ahmed al-Sharaa — also known by nom de guerre Abu Mohammad al-Jolani.
Sybiha became the latest foreign representative to meet with Sharaa in Damascus, where the latter’s Hayat Tahrir al-Sham forces and their allies are establishing a transitional government having toppled former President Bashar Assad.
Sybiha wrote on X that he “personally conveyed the message” of Ukrainian President Volodymyr Zelenskyy. “We are with you and ready to assist in restoring normal life, stability and food security,” Sybiha said.
“We rely on the new Syria respecting international law, including Ukraine’s sovereignty and territorial integrity,” he added. “This will pave the way to fully restoring our diplomatic ties, political dialogue and diplomatic presence. We are ready to develop cooperation in a number of areas.”
The visit came days after Zelenskyy announced Kyiv’s dispatch of 500 tons of wheat flour to Syria as part of the “Grain from Ukraine” humanitarian program in cooperation with the World Food Program.
Gaza hospitals become ‘battlegrounds,’ WHO chief says
World Health Organization Director-General Tedros Adhanom Ghebreyesus said early Monday that Gaza’s beleaguered hospitals “have once again become battlegrounds and the health system is under severe threat.”
Ghebreyesus said the Kamal Adwan Hospital in the north Gaza town of Beit Lahia “is out of service,” following an Israeli raid which itself came after several weeks of encirclement and bombardment.
Israeli forces raided the compound on Friday, forcibly evacuating all remaining patients and staff. The Israel Defense Forces said it detained 240 alleged militants, among them hospital director Dr. Hossam Abu Safiya. The IDF said the hospital was a “command center” for Hamas “military operations” in the surrounding area.
Ghebreyesus said Safiya’s “whereabouts are unknown. We call for his immediate release.”
Kamal Adwan patients were transferred to the Al-Shifa Hospital in Gaza City and the Indonesian Hospital in Beit Lahia, both of which have also reported repeated Israeli attacks. The latter “is itself out of function,” Ghebreyesus said.
“Seven patients along with 15 caregivers and health workers remain at the severely damaged Indonesian Hospital, which has no ability to provide care,” he added.
Four patients were detained by the IDF during their transfer out of Kamal Adwan Hospital, the WHO chief said.
Two other facilities — the Al-Ahli Hospital and Al-Wafa Rehabilitation Hospital in Gaza City — were also attacked and sustained damage on Monday, Ghebreyesus said.
“We repeat: stop attacks on hospitals,” he wrote. “People in Gaza need access to health care. Humanitarians need access to provide health aid. Ceasefire!”
Family of Gaza hospital director asks international community to help find him
The family of Dr. Hussam Abu Safiya, the director of Kamal Adwan Hospital in the Gaza Strip, is pleading with the international community to help learn his whereabouts, alleging he was detained by Israeli forces during a recent raid on the medical facility.
The family posted a message on Abu Safiya’s official Instagram page, on which the doctor had been posting updates about the hospital’s functioning, pleading, “We do not know the fate of our father.”
“We appeal to every compassionate individual and all international organizations and institutions to take action,” said the family, asking the international community to apply media pressure and make appeals to “help us push for his swift release from captivity.”
The message said Abu Safiya is still recovering from injuries he suffered a month ago while working at the hospital.
The Israel Defense Forces said in a statement released on Saturday that Abu Safiya is suspected of being a Hamas terrorist and is being held in Gaza.
Abu Safiya had not been arrested in previous IDF raids of the hospital.
-ABC News’ Camilla Alcini and Nadine Shubailat
IDF issues statement on Kamal Adwan Hospital raid
The IDF released a statement outlining their operations in and around Kamal Adwan Hospital in the last few days.
The Israel Defense Forces said the hospital was a “command center” for Hamas “military operations in Jabaliya,” although the statement and attached media do not provide corroborating evidence of this.
The statement says the IDF faced heavy fighting in areas near the hospital, and says the IDF detained 240 terrorists, including the director of the hospital, Dr Hossam Abu Safiya, whom it says is is “suspected of being a Hamas terrorist operative.”
Abu Safiya was one of the only male staff members at the hospital not detained during the IDF’s raid of the hospital in October, and he would have helped coordinate numerous resupply and patient evacuations with Israel over the last several months.
Kamal Adwan is the last functioning hospital in northern Gaza and is operating at a limited capacity due to a lack of medical supplies and the repeated attacks on the hospital.
(NEW YORK) — The climate crisis is not a distant threat; it’s happening right now and affecting what matters most to us. Hurricanes intensified by a warming planet and drought-fueled wildfires are destroying our communities. Rising seas and flooding are swallowing our homes. And record-breaking heat waves are reshaping our way of life.
The good news is we know how to turn the tide and avoid the worst possible outcomes. However, understanding what needs to be done can be confusing due to a constant stream of climate updates, scientific findings, and critical decisions that are shaping our future.
That’s why the ABC News Climate and Weather Unit is cutting through the noise by curating what you need to know to keep the people and places you care about safe. We are dedicated to providing clarity amid the chaos, giving you the facts and insights necessary to navigate the climate realities of today — and tomorrow.
Millions of students are missing school because of extreme weather
A new analysis from UNICEF finds that nearly a quarter of a billion children worldwide had their education disrupted by extreme weather events in 2024 — exacerbating what the organization calls an “existing learning crisis.”
The report found that at least 242 million students across 85 countries experienced schooling disruptions last year because of extreme weather like heat waves, storms, floods, droughts and tropical cyclones.
“Children are more vulnerable to the impacts of weather-related crises, including stronger and more frequent heatwaves, storms, droughts and flooding,” UNICEF Executive Director Catherine Russell said. “Last year, severe weather kept one in seven students out of class, threatening their health and safety, and impacting their long-term education.”
Heat waves were the most common weather disruptor for education. UNICEF found that over 118 million students were impacted by extreme heat in April alone, with South Asia seeing some of the most widespread impacts.
The report also found that September had the most frequent weather-related disruptions, with at least 16 countries suspending classes for a time due to extreme weather events like Typhoon Yagi in East Asia.
While the analysis found that almost three-quarters of the students impacted were in low and lower-middle income countries, UNICEF says no region was free from these effects.
“Education is one of the services most frequently disrupted due to climate hazards. Yet it is often overlooked in policy discussions, despite its role in preparing children for climate adaptation,” Russell said. “Children’s futures must be at the forefront of all climate related plans and actions.”
-ABC News climate unit’s Kelly Livingston
Climate funders say they will cover US climate obligations after Paris Agreement withdrawal
On Monday, President Donald Trump announced his intention to withdraw the United States from the Paris Agreement, the U.N.-backed international climate treaty. Bloomberg Philanthropies announced Thursday that they, along with a coalition of climate charities, would step up and ensure that the U.S. meets its obligations under the Paris Agreement, including any financial and reporting requirements.
“While government funding remains essential to our mission, contributions like this are vital in enabling the UN Climate Change secretariat to support countries in fulfilling their commitments under the Paris Agreement and a low-emission, resilient, and safer future for everyone,” said Simon Stiell, United Nations climate change executive secretary, in a press statement.
This is the second time Trump has withdrawn the country from the Paris Agreement. During his first term, Trump justified backing out of the treaty by claiming that participating in the agreement would result in the loss of jobs and cost the U.S. trillions of dollars. In reality, in 2023, clean energy jobs grew at more than twice the rate of the overall U.S. labor market and accounted for more than 8.35 million positions, according to a Department of Energy report. In terms of spending, the U.S. has committed several billion dollars to the effort, not trillions.
Michael Bloomberg, a billionaire businessman, founder of Bloomberg Philanthropies and a U.N. Secretary-General’s Special Envoy on Climate Ambition and Solutions, said he also plans to continue supporting a coalition of states, cities and businesses that are working to reduce U.S. greenhouse gas emissions by 61-66% below 2005 levels by 2035.
“More and more Americans have had their lives torn apart by climate-fueled disasters, like the destructive fires raging in California. At the same time, the United States is experiencing the economic benefits of clean energy, as costs have fallen and jobs have grown in both red and blue states. The American people remain determined to continue the fight against the devastating effects of climate change,” Bloomberg said.
(WASHINGTON) — The first flight carrying “high-threat” migrants to Guantanamo Bay arrived Tuesday evening, part of the Trump administration’s crackdown on illegal immigration.
The C-17 plane took off from El Paso, Texas, and landed landed at 7:20 p.m. Eastern time, according to U.S. Transportation Command.
The 10 people on the flight were suspected members of the Venezuelan gang, Tren de Aragua, according to the Department of Homeland Security.
The migrants, however, will not be co-located with existing detainees at Guantanamo Bay, and Immigration and Customs Enforcement will have the primary guard of them.
“These 10 high-threat individuals are currently being housed in vacant detention facilities,” the Defense Department said in a Wednesday statement, calling the detention of these migrants at Guantanamo Bay a “temporary measure.” “U.S. Immigration and Customs Enforcement is taking this measure to ensure the safe and secure detention of these individuals until they can be transported to their country of origin or other appropriate destination.”
President Donald Trump signed an executive order on Jan. 29 directing the secretaries of the Department of Defense and the Department of Homeland Security to “expand the Migrant Operations Center at Naval Station Guantanamo Bay to full capacity” to house migrants without legal status living in the United States. The Migrant Operations Center is separate from the high-security prison facility that has been used to hold al Qaeda detainees.
“There’s a lot of space to accommodate a lot of people,” Trump said in the Oval Office on Tuesday. “So we’re going to use it.
“The migrants are rough, but we have some bad ones, too,” he added. “I’d like to get them out. It would be all subject to the laws of our land, and we’re looking at that to see if we can.”
White House press secretary Karoline Leavitt confirmed the flights carrying migrants to Guantanamo Bay were underway Tuesday morning, saying on Fox News, “Trump, Pete Hegseth and Kristi Noem are already delivering on this promise to utilize that capacity at Gitmo for illegal criminals who have broken our nation’s immigration laws and then have further committed heinous crimes against lawful American citizens here at home.”
While Trump has said the United States will work to prepare the base to hold 30,000 migrants awaiting processing to return to their home countries, Defense Secretary Pete Hegseth said Monday that Guantanamo Bay’s high-security prison facility could house “the worst of the worst” criminals being deported.
“Where are you going to put Tren de Aragua before you send them all the way back?” Hegseth asked. “How about a maximum-security prison at Guantanamo Bay, where we have the space?”
He called the base “the perfect place to provide for migrants who are traveling out of our country,” including for “hardened criminals.”
“President @realdonaldtrump has been very clear: Guantanamo Bay will hold the worst of the worst. That starts today,” Homeland Security Secretary Kristi Noem posted on Tuesday. It is unclear what charges the migrants on the plane face.
“Due process will be followed, and having facilities at Guantánamo Bay will be an asset to us and the fact that we’ll have the capacity to continue to do there what we’ve always done. We’ve always had a presence of illegal immigrants there who have been detained — we’re just building out some capacity,” Noem told NBC News on Sunday. “We appreciate the partnership of the DoD in getting that up to the level that it needs to get to in order to facilitate this repatriation of people back to their countries.”
She added that it is “not the plan” to have migrants stay at Guantanamo Bay indefinitely.
As of Monday, there were about 300 service members supporting the immigrant holding operations at Naval Station Guantanamo Bay, according to U.S. Southern Command. U.S. officials told ABC News that as many as 200 more Marines are expected to arrive in waves.
The Defense Department posted that the troops are at Guantanamo Bay “to prepare to expand the Migrant Operations Center” to house up to the 30,000 migrants temporarily, separate from the maximum-security prison.
“As we identify criminal illegals in our country, the military is leaning forward to help with moving them out to their home countries or someone else in the interim,” Hegseth said on Jan. 31. “Now if … they can’t go somewhere right away, they can go to Guantanamo Bay.”
Karen Greenberg, director of the Center on National Security at Fordham University School of Law, told ABC News’ Phil Lipof on Jan. 29 that a “big challenge” of holding migrants at Guantanamo Bay is the large number Trump has suggested.
“I don’t know that they have the capacity for that,” said Greenberg, who noted that “in the old days and the ’90s, I think they held 21,000 at the most.”
She added that the base has long held refugees and migrants, including in the Biden administration, though in much smaller numbers, and has typically been used for those intercepted at sea rather than to hold migrants flown in from the continental U.S.
However, Greenberg noted that the reports from those who have spent time at Guantanamo Bay are “not good.”
“There was a report released in September by the International Refugee Assistance Project, which sort of detailed the conditions that migrants are held in currently at Guantanamo, which included unsanitary conditions, mistreatment, not to mention this sort of fuzzy legal status,” she said.
