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
Putin calls U.S.-Russia summit a “mistake” without guaranteed results
Russian President Vladimir Putin stated on Wednesday that holding a summit with U.S. President Donald Trump would be a “mistake” without certainty of concrete results, following the cancellation of the planned meeting in Budapest.
“Without a doubt, such a meeting must be well-prepared. For me and the U.S. president, it would be a mistake to treat it lightly and come out of that meeting without the expected outcome,” Putin told local media from the Kremlin.
The Russian leader said the initiative for the summit came from the U.S. side and that he had accepted the proposal. “In our last phone conversation, both the meeting and its location were proposed by the U.S. side. I agreed,” he said.
Putin added that Moscow continues to support dialogue, even in the current context. However, he admitted uncertainty about whether a meeting with Trump could take place later. “Now I see that, in his statement, the U.S. president has decided to cancel or postpone the meeting. Most likely, it is a postponement, since dialogue is always better than confrontation, disputes, or especially war,” he emphasized.
Russian Foreign Ministry spokesperson Maria Zakharova reaffirmed that Moscow does not consider a resolution to the conflict in Ukraine that does not meet its original demands. “We see no alternative other than achieving the objectives of the special military operation,” Zakharova stated.
Among the conditions Russia has set for resuming dialogue with Washington and other international actors are: ensuring Ukraine’s neutral and non-aligned status, its demilitarization, the removal of elements considered “Nazis,” full respect for the rights of Russian-speaking populations, and unrestricted operation of the Ukrainian Orthodox Church.
International
Colombia ready to replace suspended U.S. support, President Petro asserts
Colombian President Gustavo Petro downplayed on Thursday the impact of U.S. President Donald Trump’s decision to suspend all economic aid to the country, asserting that the measure “changes nothing” structurally, although he acknowledged potential effects on military resources.
“What happens if they take away our aid? In my opinion, nothing (…) I have never seen a single dollar of aid in Colombia’s budget,” Petro said during a press conference at the Casa de Nariño, a day after Trump publicly announced the suspension of all payments and subsidies to Colombia.
The Colombian leader explained that U.S. funds are not allocated directly to the government but rather to organizations linked to the now-defunct USAID. “U.S. aid is not for the government; it is for the NGOs managed by USAID, that is, for themselves,” he argued.
Petro also questioned the effectiveness of this cooperation, stating that Washington’s decades-long anti-drug strategy has failed by focusing on forced eradication of illicit crops, which, according to him, has perpetuated violence in Colombia. “They have condemned us to violence,” he asserted.
Although he acknowledged that the suspension could create difficulties in the military sector—such as the withdrawal of combat helicopters and limitations in arms supply—he assured that his government is prepared to replace that support with the national budget. “Colombia buys its own weapons,” he emphasized.
International
Cristina Fernández calls Argentina’s legislative elections “decisive” to stop Milei
Former Argentine President Cristina Fernández (2007–2015) described this Thursday as “decisive” the legislative elections taking place this Sunday in Argentina, urging voters to support Peronism as a way to put a “brake” on Javier Milei’s government.
“The brake on Milei starts this Sunday, but the work continues the next day to think about how to get Argentina out of the disaster this government will leave. This October 26 is Milei and permanent austerity, or Argentina, our common home,” Fernández said in a recorded message from her Buenos Aires residence, where she is serving a six-year prison sentence for irregularities in the awarding of road construction contracts during her presidency.
Fernández emphasized that the elections are not only about choosing deputies and senators but also represent “a great democratic opportunity” to “set limits on Milei’s mismanagement.”
“The libertarian experiment has failed, and everyone knows it. People cannot make ends meet, they have to go into debt to pay for electricity, buy food, or medicine,” she added.
The former president also criticized the government for changing the voting system “without proper training, putting transparency at risk,” referring to the introduction of the Single Paper Ballot, which lists all candidates, offices, and political parties on a single sheet.
Putin calls U.S.-Russia summit a “mistake” without guaranteed results
Colombia ready to replace suspended U.S. support, President Petro asserts
Cristina Fernández calls Argentina’s legislative elections “decisive” to stop Milei
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