International
Neptune’s delicate rings captured in new Webb image
AFP | by Daniel Lawler
The James Webb Space Telescope has turned its gaze away from the deep universe towards our home Solar System, capturing an image of a luminous Neptune and its delicate, dusty rings in detail not seen in decades, NASA said Wednesday.
The last time astronomers had such a clear view of the farthest planet from the Sun was when NASA’s Voyager 2 became the first and only space probe to fly past the ice giant for just a few hours in 1989.
Now Webb’s unprecedented infrared imaging capabilities has provided a new glimpse into Neptune’s atmosphere, said Mark McCaughrean, a senior advisor for science and exploration at the European Space Agency.
The telescope “takes all that glare and background away” so that “we can start to tease out the atmospheric composition” of the planet, McCaughrean, who has worked on the Webb project for more than 20 years, told AFP.
Neptune appears as deep blue in previous images taken by the Hubble Space Telescope due to methane in its atmosphere.
However the near-infrared wavelengths captured by Webb’s primary imager NIRCam shows the planet as a greyish white, with icy clouds streaking the surface.
“The rings are more reflective in the infrared,” McCaughrean said, “so they’re much easier to see”.
The image also shows an “intriguing brightness” near the top of Neptune, NASA said in a statement. Because the planet is tilted away from Earth and takes 164 years to orbit the Sun, astronomers have not yet had a good look at its north pole.
Webb also spotted seven of Neptune’s 14 known moons.
Strange moon
Looming over Neptune in a zoomed-out image is what appears to be a very bright spiky star, but is in fact Triton, Neptune’s strange, huge moon haloed with Webb’s famed diffraction spikes.
Triton, which is larger than dwarf planet Pluto, appears brighter than Neptune because it is covered in ice, which reflects light. Neptune meanwhile “absorbs most of the light falling on it”, McCaughrean said.
Because Triton orbits the wrong way around Neptune, it is believed to have once been an object from the nearby Kuiper belt which was captured in the planet’s orbit.
“So it’s a pretty cool to go and have a look at,” said McCaughrean.
As astronomers sweep the universe searching for other planets like our own, they have found that ice giants such as Neptune and Uranus are the most common in the Milky Way.
“By being able to look at these ones in great detail, we can key into our observations of other” ice giants,” McCaughrean said.
Operational since July, Webb is the most powerful space telescope ever built, and has already unleashed a raft of unprecedented data. Scientists are hopeful it will herald a new era of discovery.
Research based on Webb’s observations of both Neptune and Triton is expected in the next year.
“The kind of astronomy we’re seeing now was unimaginable five years ago,” McCaughrean said.
“Of course, we knew that it would do this, we built it to do this, it is exactly the machine we designed.
“But to suddenly start seeing things in these longer wavelengths, which were impossible before… it’s just absolutely remarkable.”
International
U.S. Senate Rejects Budget, Bringing Government Closer to Shutdown Amid DHS Dispute
The U.S. Senate voted on Thursday against a budget proposal in a move aimed at pressuring changes at the Department of Homeland Security (DHS), following the killing of two civilians during a deployment of immigration agents in Minneapolis.
All Senate Democrats and seven Republican lawmakers voted against the bill, which requires 60 votes to advance, pushing the country closer to a partial government shutdown that would cut funding for several agencies, including the Pentagon and the Department of Health.
The rejection came as Senate leaders and the White House continue negotiations on a separate funding package for DHS that would allow reforms to the agency. Proposed measures include banning Immigration and Customs Enforcement (ICE) agents from wearing face coverings and requiring them to use body-worn cameras during operations.
The vote took place just hours after President Donald Trump said he was “close” to reaching an agreement with Democrats and did not believe the federal government would face another shutdown, following last year’s record stoppage.
“I don’t think the Democrats want a shutdown either, so we’ll work in a bipartisan way to avoid it. Hopefully, there will be no government shutdown. We’re working on that right now,” Trump said during a Cabinet meeting at the White House.
International
Trump Says Putin Agreed to One-Week Halt in Attacks on Ukraine Amid Extreme Cold
U.S. President Donald Trump said on Thursday that he secured a commitment from Russian President Vladimir Putinto halt attacks against Ukraine for one week, citing extreme weather conditions affecting the region.
“Because of the extreme cold (…) I personally asked Putin not to attack Kyiv or other cities and towns for a week. And he agreed. He was very pleasant,” Trump said during a Cabinet meeting broadcast by the White House.
Trump acknowledged that several advisers had questioned the decision to make the call.
“A lot of people told me not to waste the call because they wouldn’t agree. And he accepted. And we’re very happy they did, because they don’t need missiles hitting their towns and cities,” the president said.
According to Trump, Ukrainian authorities reacted with surprise to the announcement but welcomed the possibility of a temporary ceasefire.
“It’s extraordinarily cold, record cold (…) They say they’ve never experienced cold like this,” he added.
Ukrainian President Volodymyr Zelensky later commented on the announcement, expressing hope that the agreement would be honored.
International
Storm Kristin Kills Five in Portugal, Leaves Nearly 500,000 Without Power
Storm Kristin, which battered Portugal with heavy rain and strong winds early Wednesday, has left at least five people dead, while nearly half a million residents remained without electricity as of Thursday, according to updated figures from authorities.
The revised death toll was confirmed to AFP by a spokesperson for the National Emergency and Civil Protection Authority (ANPEC). On Wednesday, the agency had reported four fatalities.
Meanwhile, E-Redes, the country’s electricity distribution network operator, said that around 450,000 customers were still without power, particularly in central Portugal.
Emergency services responded to approximately 1,500 incidents between midnight and 8:00 a.m. local time on Wednesday, as the storm caused widespread disruptions.
The Portuguese government described Kristin as an “extreme weather event” that inflicted significant damage across several regions of the country. At the height of the storm, as many as 850,000 households and institutions lost electricity during the early hours of Wednesday.
Several municipalities ordered the closure of schools, many of which remained shut on Thursday due to ongoing adverse conditions.
Ricardo Costa, regional deputy commander of the Leiria Fire Brigade, said residents continue to seek assistance as rainfall persists.
“Even though the rain is not extremely intense, it is causing extensive damage to homes,” he noted.
In Figueira da Foz, a coastal city in central Portugal, strong winds toppled a giant Ferris wheel, underscoring the severity of the storm.
U.S. and Guatemala Sign Trade Deal Granting Zero Tariffs to Most Exports
Panama Supreme Court Strikes Down Panama Ports Concession as Unconstitutional
U.S. Senate Rejects Budget, Bringing Government Closer to Shutdown Amid DHS Dispute
Tec de Monterrey honors one of its students for his contribution to nanotechnology in medicine
Defense Minister commends salvadoran soldier for Central American Cross Country victory
Extension of the state of emergency approved in southern Chile
-
Central America5 days agoGuatemala Police Arrest Prison Guard Caught in the Act of Extortion
-
Central America5 days agoHonduras swears in conservative president Asfura after disputed election
-
Central America5 days agoBukele leads public trust rankings as UCA survey highlights gains in security
-
International4 days agoFootball Fan Killed in Clashes After Colombian League Match
-
Central America4 days agoGuatemala President Says Starlink Terminal Found Inside Prison
-
International5 days agoDoomsday clock moves to 85 seconds before midnight amid rising global risks
-
International5 days agoWinter Storm Fern Leaves 30 Dead and Over One Million Without Power Across the U.S.
-
International3 days agoU.S. Senate Rejects Budget, Bringing Government Closer to Shutdown Amid DHS Dispute
-
Sin categoría5 days agoEight Killed in Series of Armed Attacks in Ecuador’s Manabí Province
-
International5 days agoSpain approves plan to regularize up to 500,000 migrants in Historic Shift
-
International4 days agoMissing Spanish Sailor Rescued After 11 Days Adrift in Mediterranean
-
International4 days agoRubio Says U.S. Could Participate in Follow-Up Russia-Ukraine Talks
-
Sin categoría5 days agoEl Salvador Launches Fourth Year of Ocean Mission to Protect Marine Ecosystems
-
Central America2 days agoPanama Supreme Court Strikes Down Panama Ports Concession as Unconstitutional
-
International3 days agoStorm Kristin Kills Five in Portugal, Leaves Nearly 500,000 Without Power
-
Central America2 days agoU.S. and Guatemala Sign Trade Deal Granting Zero Tariffs to Most Exports
-
International3 days agoTrump Says Putin Agreed to One-Week Halt in Attacks on Ukraine Amid Extreme Cold
-
International3 days agoMan Arrested After Vehicle Crashes Into Jewish Institution in Brooklyn