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Watching Dawn and Dusk on a Distant Hot Jupiter
What would it be like to stand at the boundary between night and day on a planet locked forever facing its star? Astronomers have just found the closest thing yet to an answer, catching the James Webb Space Telescope in the act of watching one such twilight boundary evolve in real time.
The planet in question is WASP-121 b, an ultra-hot gas giant orbiting so close to its host star that a single year there lasts barely thirty hours. That proximity has locked the planet’s rotation to its orbit, so, much like our own Moon always shows Earth the same face, one side of WASP-121 b is permanently roasted by starlight while the other stares out into the cold of space. Average temperatures on the scorched dayside reach roughly 2500 degrees Celsius, while the permanent night side sits at a comparatively mild 725 degrees, a difference of nearly 1800 degrees between the two hemispheres of a single world.

Artist impression of the James Webb Space Telescope (Credit : NASA)
Led by Cyril Gapp, a PhD student at the Max Planck Institute for Astronomy, a research team set out to study the planet’s twilight zones, the morning and evening terminators that separate its blazing day from its darker night. As WASP-121 b passes in front of its star, it rotates by roughly thirty degrees over the course of the transit, letting astronomers peer past dusk and dawn toward slivers of the fiery dayside beyond. By tracking exactly how starlight filtering through the atmosphere changed second by second during that transit, rather than simply averaging the whole thing together as earlier studies had done, the team was able to map out how conditions shift across the length of a single planet.
The results revealed two strikingly different twilight zones. The evening terminator, with fierce winds sweeping heat eastward from the dayside, absorbed noticeably more starlight than its morning counterpart, and showed a telltale rise in carbon monoxide signal driven by that extra heat. Water told an even more dramatic story. In the searing evening atmosphere, temperatures climbed high enough to tear water molecules apart entirely, leaving noticeably less of it behind compared to the cooler morning side.

As a planet passes in front of its star, a sliver of starlight filters through its atmosphere on the way to us, carrying clues about what that atmosphere is made of, and, as with WASP-121b, how it changes from dawn to dusk (Credit : MPIA-Grafikabteilung)
When the team compared their results against computer models of the planet’s atmosphere, the real signal turned out stronger than predicted, hinting at a genuine physics puzzle. The most likely explanation is clouds, not of water but of vaporised minerals such as silicates, quietly cooling the morning terminator by blocking infrared light from the hot layers beneath. Since modelling clouds accurately remains notoriously difficult, this discrepancy offers researchers a valuable clue about where current atmospheric models still fall short.
Beyond WASP-121 b itself, the technique marks a genuine breakthrough in method. Rather than treating an exoplanet as a single averaged blob of atmosphere, astronomers can now trace conditions longitude by longitude across a world hundreds of light years away. The team has already identified further ultra-hot planets suited to the same approach, promising a growing atlas of alien weather, measured one twilight at a time.
Source : WASP-121 b: JWST reveals atmospheric differences between morning and evening terminators
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State legislators warn of threat to film and TV tax credit program
More than three dozen California legislators are calling for Gov. Gavin Newsom to exempt the state’s film and TV production incentive program from a recently approved cap on corporate tax credits, warning that without action it will be “significantly kneecapped.”
Though the state’s budget has already been approved, the legislators say a solution must be devised before the end of the year so that production companies do not lose the “full value of tax credits they earned in exchange for creating middle-class entertainment industry jobs,” according to a letter dated Friday and addressed to Newsom, State Senate President Pro Tempore Monique Limón and Assembly Speaker Robert Rivas.
“Tax credits earned for creating jobs in motion picture and television production are not the same as tax credits provided for research and development,” the letter states. The legislation “creates short-term budget savings by reneging on commitments made to the entertainment industry and the working families who depend upon it for their livelihoods.”
The letter comes shortly after Newsom signed his final state budget as California’s governor, a $351.7-billion spending plan that includes new limitations on corporate tax credits.
The budget includes a provision that restricts the maximum tax credit companies can claim in a given year to $5 million or 50% of a company’s tax state tax liability, whichever is greater.
Hollywood industry representatives had warned the governor’s office that the new restrictions could affect the state’s production incentive program, which was just bolstered last year to an annual cap of $750 million.
The film and TV industry in Southern California has struggled to rebound from the effects of the pandemic, the dual writers’ and actors’ strikes in 2023 and the exodus of production to other states and countries.
Members who voted for the budget bill had believed there was a carve-out for the film and TV tax credit program, said Assemblyman Rick Chavez Zbur (D-Los Angeles), chair of the Assembly Democratic Caucus.
“I don’t think that anyone understood what this cap was, what it did and that it effectively kneecapped and reverses the progress that we made last year,” Zbur, who co-authored last year’s bill, said in an interview. “We need to have people understand that these changes, which I think people believed were minor, are really significant and will result in significant job loss if we don’t fix them.”
The new changes to the state’s film and TV tax credit program, which included expanded eligibility for additional shows and films, came after intense lobbying from studios and industry workers, who argued that more funding was necessary to lure production back from other states and countries.
Last week, the California Film Commission said the expanded tax credit program was set to deliver $6.6 billion in direct production spending in-state and more than 34,000 cast and crew jobs across the 170 total film and TV shows that received production incentives this year.
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Trump Recalls Last Conversation With Lindsey Graham Before His Death
In an interview on Sunday, President Trump recounted his last conversation with Senator Lindsey Graham, hours before his death. Mr. Graham sounded “perfect,” he said.
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Wally Funk, Aviation Pioneer and Oldest Woman to Travel to Space, Dies at 87
Wally Funk, an aviation pioneer and the oldest woman ever to go to space, died this past week. She was 87. She passed away on Wednesday, June 8th, at her apartment in an assisted living facility in Grapevine, a suburb of Dallas and Fort Worth, Texas. According to her caregiver, City Councilwoman Duff O’Dell, Funk had experienced several falls recently and was suffering from an infection in her leg. Funk made headlines worldwide in 2021 when she flew aboard the inaugural crewed flight of Blue Origin’s New Shepard rocket.
For Funk, it was a chance to finally realize a lifelong dream. In the early 1960s, Funk was one of 13 female pilots who joined the Mercury 13 program, a privately funded effort to test whether the best female pilots in the U.S. could become astronauts. They underwent the same rigorous tests as the male candidates who became the famed “Mercury Seven,” but were ultimately denied the chance to become astronauts. The program, not sanctioned by NASA, was canceled due to “doubts” about whether women should participate.
Nevertheless, Funk continued to dedicate herself to flying and blazing a trail for women in aviation. O’Dell told the AP press that Funk was the “most eternally optimistic person” she had ever met. “She was told by many, many, many men, ‘No, you can’t do this. No, you can’t do that.’ And she never got mad about it. She just was more determined.”
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A Woman of Firsts
Born Mary Wallace Funk on February 1st, 1939, Funk earned her pilot’s license at Stephens College in Missouri and later studied education at Oklahoma State University because it had an aviation team, known as the Flying Aggies. As she related in a 2019 interview: “As a Flying Aggie, I could do all the maneuvers as well as the boys, if not better.” During astronaut training, she also spent 10 hours and 35 minutes in a sensory-deprivation tank, beating the record set by famed astronaut John Glenn.
Unfortunately, neither Funk nor any of her colleagues in the Mercury 13 program would go to space. In addition to the agency questioning the wisdom of sending women alongside men to space, there were also complications caused by the rules NASA instituted in 1958 governing astronaut selection. Initially, NASA believed that the best candidates would be pilots, submarine crews, or members of expeditions to the Arctic or Antarctica. However, this presented them with a large pool of potential candidates that would require significant time and resources to process.
President Eisenhower intervened and decided that military test pilots would be the best candidates, which greatly simplified the selection process. Since women were not permitted to undergo combat training in the early 1960s, the Mercury 13 candidates no longer met the requirements. The situation was different in the Soviet Union, where women were trained to become cosmonauts during the Vostok program. The Soviets also sent the first female cosmonaut, Valentina Tereshkova, to space on June 16th, 1963, as part of the Vostok 6 mission.
Despite these obstacles, Funk never stopped flying and never let other people’s prejudices stop her from doing what she loved. After graduating from OSU, she became the first female civilian flight instructor at Fort Sill, Oklahoma, and later the first female inspector for the Federal Aviation Administration (FAA) and the first female air safety investigator for the National Transportation Safety Board (NTSB). She owned a flying school in Taos, New Mexico, and taught aviation privately, logging over 19,600 hours of flight time and teaching more than 3,000 people to fly private and commercial aircraft.
*Wally Funk next to a T-33 Shooting Star aircraft at Fort Sills, Oklahoma, where she became the first female flight instructor. Credit: Blue Origin*
Funk also had the honor of being the youngest woman to graduate the Mercury 13 program and was told she “had done better and completed the work faster than any of the guys,” as she related in a promotional video for her Blue Origin flight. She also made several subsequent attempts to become an astronaut during the Space Age, but was told she couldn’t because she didn’t have an engineering degree. When NASA began admitting women into the astronaut corps in 1978, Funk was 39. As she related in a 2021 interview with CNN:
I got a hold of NASA four times, and said, ‘I want to become an astronaut,’ but nobody would take me. I didn’t think I would ever get to go up. Nothing has ever gotten in my way. They say, ‘Wally, you’re a girl, you can’t do that.’ I said, ‘Guess what? [It] doesn’t matter what you are. You can still do it if you want to do it.’ And I like to do things that nobody’s ever done before.
Funk’s Historic Flight
In 2021, Funk finally got a chance to realize her dream of becoming an astronaut after Blue Origin CEO Jeff Bezos invited her to be an “honored guest” aboard the NS-16 mission. She was joined by Bezos himself, his brother Mark, and Oliver Daemen, an 18-year-old student who won an auction contest. At 82 years old (at the time), Funk was the oldest person to go to space (and Daemen was the youngest). While this record would be broken later by William Shatner and Ed Dwight (America’s first Black astronaut candidate), who were both 90, she remains the oldest woman to go to space.
On launch day, June 20th, 2021, Funk was the most animated and enthusiastic of the crew, running up to the catwalk extending to the crew capsule and ringing the bell with excitement. The flight lasted 10 minutes and 10 seconds, and the crew module reached a maximum altitude of 107 km (66.5 mi) above sea level. As she said during the post-flight news conference:
I’ve been waiting a long time to finally get it up there, and I’ve done a lot of astronaut training through the world – Russia, America – and I could always beat the guys on what they were doing because I was always stronger and I’ve always done everything on my own. I want to go again, fast. I loved every minute of it. I just wish it had been longer.
*The seven surviving women who participated in the Mercury 13 program, including Wally Funk (second from left), attending the launch of the Space Shuttle Discovery in 1995. Credit: NASA*
A Loving Tribute
“Wally Funk’s unwavering determination proves that dreams have no expiration date,” said O’Dell in a statement. “Her courage, resilience, and groundbreaking achievements continue to inspire young people – especially girls – to pursue careers in science, aviation, and space exploration. Grapevine is honored to call Wally Funk one of our own.”
“Wally Funk never stopped believing that one day she would reach space. Her passion for flight, perseverance, and love of exploration will continue to inspire generations of Americans. Godspeed, Wally,” posted NASA Administrator Jared Isaacman on X. The city of Grapevine shared a tribute on Facebook:
Wally was a beloved Grapevine resident whose extraordinary accomplishments and generous spirit left an enduring legacy. The City of Grapevine proudly recognizes Wally Funk, whose extraordinary career has inspired generations by breaking barriers in aviation and space exploration. Funk continues to serve as a global symbol of determination, perseverance, and excellence. Funk dedicated more than seven decades to aviation, becoming one of the world’s most accomplished female pilots and, ultimately, fulfilling her lifelong dream of traveling to space.
Blue Origin also paid tribute to Funk in a post on X, calling her “a pioneer in every sense of the word”:
She became the youngest of the Mercury 13, outperforming nearly every test put in front of her, and ultimately, the only one of the thirteen to have ever reached space. On NS-16, 60 years later, Wally made history as the oldest astronaut at the time and remains the oldest woman to ever fly to space. It was a moment six decades in the making. We were humbled to be part of her journey. Her story will continue to inspire generations of future explorers. Fly, Wally, fly.
Further Reading: AP News, The Gaurdian
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