
Duffy says climate science will ‘move aside,' with NASA only focusing on space exploration
'All the climate science and all of the other priorities that the last administration had at NASA we're going to move aside, and all of the science that we do is going to be directed towards exploration, which is the mission of NASA,' Duffy, who also leads the Transportation Department, told Fox Business.
'That's why we have NASA — is to explore, not to do all of these earth sciences,' he added.
NASA, which stands for the National Aeronautics and Space Agency, explores both air and space. It has historically conducted science related to both Earth and space, including climate science.
A pivot away from climate science is not necessarily a surprise — the Trump administration has sought to deny and downplay climate change's impacts and has moved to dismantle science research, including by dismissing scientists working on the National Climate Assessment.
But moving to get rid of all climate science at the agency may still be an escalation.
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TRAPPIST-1d isn't the Earth-like planet scientists had hoped it to be, according to JWST data
When you buy through links on our articles, Future and its syndication partners may earn a commission. There's bad news for our hopes of habitable planets existing around TRAPPIST-1, with the James Webb Space Telescope (JWST) finding no evidence for an Earth-like atmosphere on a third world orbiting the red dwarf. However, that still leaves four other planets in orbit around TRAPPIST-1 that could be habitable, with at least two or three of them in what is regarded as the "habitable zone" where temperatures would be suitable for liquid water to exist —- assuming an Earth-like atmosphere that can retain heat. Previously, the James Webb Space Telescope (JWST) had failed to find evidence for an atmosphere around the two innermost planets in the TRAPPIST-1 system, world TRAPPIST-1b and TRAPPIST-1c. Now, we can add the next planet out, TRAPPIST-1d, to the list. "Ultimately, we want to know if something like the environment we enjoy on Earth can exist elsewhere, and under what conditions," Caroline Piaulet-Ghorayeb of the University of Chicago and the Trottier Institute for Research on Exoplanets (IREx) at Université de Montréal, said in a statement. "At this point, we can rule out TRAPPIST-1d from a list of potential Earth twins or cousins." All seven planets of the TRAPPIST-1 system are seen transiting, or passing in front of, their star. Although not even the JWST can see the silhouette of the transiting planet, it can detect where the star's light has been absorbed by molecules in the planet's atmosphere during the transit. This is called transmission spectroscopy. Yet, despite using the JWST's sensitive Near-Infrared Spectrometer, or NIRSpec, astronomers led by Piaulet-Ghorayeb found no evidence for water, methane or carbon dioxide, all of which are common in Earth's atmosphere and which act as natural greenhouse gases to retain heat and keep a planet warm enough for liquid water. "There are a few potential reasons why we don't detect an atmosphere around TRAPPIST-1d," said Piaulet-Ghorayeb. "It could have an extremely thin atmosphere that is difficult to detect, somewhat like Mars. Alternatively, it could have very thick, high-altitude clouds that are blocking our detection of specific atmospheric signatures — something more like Venus. Or, it could be barren rock, with no atmosphere at all." The problem that the TRAPPIST-1 planets collectively face is their star. Red dwarfs, small and cool, seem at first glance to be unthreatening, but in reality they are tumultuous with frequent violent outbursts of radiation. These repeated flares can strip an atmosphere from a world a piece at a time. It is quite possible that this is the fate that has befallen TRAPPIST-1b, c and d. In particular, planet d seems like a real blow to our hopes of finding a world with an Earth-like atmosphere around TRAPPIST-1 because it resides on the inner edge of the system's habitable zone. That said, so does Venus in our solar system, and a Venus-like planet is still on the table. And there are four other planets still to go. "All hope is not lost for atmospheres around the TRAPPIST-1 planets," said Piaulet-Ghorayeb. "While we didn't find a big, bold atmospheric signature for planet d, there is still potential for the outer planets to be holding onto a lot of water and other atmospheric components." Planets e and f are definitely in the star's nominal habitable zone, g is at the outer edge like Mars is in our solar system, while planet h is beyond the habitable zone and will be almost certainly too cold to support an Earth-like atmosphere. However, probing whether any of these outer planets has an atmosphere is more difficult. Their greater distance from their star means any spectral signature is weaker, perhaps too weak even for the JWST to detect. RELATED STORIES — TRAPPIST-1: A guide to the system with 7 Earth-size exoplanets — Why the 7 worlds of TRAPPIST-1 waltz in peculiar patterns — TRAPPIST-1 Worlds Are Rocky and Rich in Water, New Research Uncovers But even if all the worlds around TRAPPIST-1, which is 40 light-years away, prove to be a bust, there are many more fish in the sea. Red dwarf stars are by far the most common type of star, making up about three-quarters of all stars in the Milky Way galaxy, and there are numerous other interesting planets around other red dwarfs, such as Teegarden's Star b, LHS 1140b and even Proxima Centauri b, even though the latter does not transit. And the search continues for rocky planets in the habitable zone of more sun-like stars — a search that the European Space Agency's PLATO mission, currently set to launch in December 2026, will accelerate. The latest news regarding the search for an atmosphere around TRAPPIST-1d was published on Aug. 13 in The Astrophysical Journal. Solve the daily Crossword
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The Webb telescope's look at an Earth-size alien planet was bleak
As scientists delve deeper into a star system with seven rocky worlds, the prospect of one being a habitable planet seems to be quickly fading. Researchers who used the James Webb Space Telescope, a joint partnership of NASA and its European and Canadian counterparts, determined the third planet from the TRAPPIST-1 star is unlikely to have air. For anyone keeping count, that's strike three for the system, which lies about 40 light-years away from Earth in space. The new findings on exoplanet TRAPPIST-1d, published in The Astrophysical Journal on Wednesday, mirror similar results for TRAPPIST-1b and TRAPPIST-1c, which orbit closer to their red dwarf host, a tiny-yet-violent type of star found throughout the galaxy. "On a personal level, of course, there's a part of me that would have loved to see signs of air on TRAPPIST-1d," Caroline Piaulet-Ghorayeb, a University of Chicago fellow and lead author of the paper, told Mashable. "Science isn't about hoping for a yes, it's about finding what's real. So here we've learned that TRAPPIST-1d is not an Earth twin." Astronomers discovered the TRAPPIST-1 system about eight years ago with the now-retired Spitzer Space Telescope. Soon they made the swarming exoplanets a priority for investigating their potential for life, with all seven roughly the size of Earth. Scientists were particularly interested in finding out whether the TRAPPIST planets have atmospheres, because red dwarfs are the most ubiquitous kind of star in the Milky Way. If these planets can retain atmospheres, even while subjected to close-range blasts of stellar radiation, perhaps an abundance of other worlds out there could, too. When TRAPPIST-1b and TRAPPIST-1c didn't appear to have atmospheres, the research community wasn't deterred, as neither sibling planet was predicted to have one, given how close they are to the star. But TRAPPIST-1d, which circles the star every four days, is a different story. This exoplanet is on the cusp of the star's theorized habitable zone — the region of space where worlds might be able to have lakes and oceans on their surfaces. "Science isn't about hoping for a yes, it's about finding what's real." Webb observed TRAPPIST-1d with a method called transmission spectroscopy. When a planet crosses in front of its host star, starlight should shine through its atmosphere, if there is one. Molecules within an atmosphere absorb certain light wavelengths, or colors, so astronomers can look for missing segments of the rainbow to figure out chemicals in its composition. The researchers looked for things like water vapor, methane, carbon dioxide, and sulfur dioxide. But first, the team had to account for so-called "stellar contamination." Just like the sun, red dwarfs can get sunspots, so their starlight isn't completely uniform. Variability in the light signals can obscure or even imitate signals coming from a planet. After correcting for this problem in the data, the researchers found no clear signs of gases. That means scientists can rule out certain types of atmospheres, like the thick hydrogen-rich atmosphere of Neptune, or a cloud-free atmosphere akin to that of early Earth. But a few other potential scenarios could explain the results without the planet having to be a barren rock. It could have an extremely thin atmosphere, sort of like Mars, that would be difficult to detect with this method, Piaulet-Ghorayeb said, or it could have thick, high-altitude clouds blocking atmospheric signatures, perhaps like Venus. "We also learned something about what the best way to even look for water in the atmosphere of these temperate planets might be," she said. "Maybe transmission spectroscopy isn't it." Whether red dwarf stars, sometimes called M-type, can harbor planets with atmospheres is a key question for Webb to answer. The observatory has begun a massive study of rocky worlds, first reported by Mashable, specifically to figure out if planets orbiting closely around them could have air. Rather than transmission spectroscopy, the survey will rely on a different method, called the secondary eclipse technique, which avoids some of the stellar contamination issues. The team says not to give up on the TRAPPIST system just yet. After all, planets E, F, G, and H could have a better chance of holding onto their atmospheres because they're farther from the star's flares, which can strip away a planet's atmosphere. In particular, TRAPPIST researchers are looking forward to studying E, the fourth planet from the star. The challenge for Webb will be overcoming the planets' more extreme distance and colder environments, which make atmospheric readings more difficult. What makes Piaulet-Ghorayeb hopeful about the continued quest for rocky worlds with water and air is the milestone achieved. "For the first time, if there had been an Earth-like atmosphere on a temperate terrestrial planet, we could have found it," she said. "And I don't think that in any study before, with any instrument that we had before, we could really get to that level of precision." Solve the daily Crossword
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Opinion - Sean Duffy is doing his a great job at NASA, but it might not be enough
The naming of Secretary of Transportation Sean Duffy as interim NASA administrator was as much of a surprise as was President Trump's withdrawal of his nomination of Jared Isaacman to the same post. So, how is Duffy doing, trying to bring the space agency out from its summer of discontent? Duffy has been spending a lot of his time boosting the Artemis program, designed to return astronauts to the moon and, eventually, to Mars. He recently posted that he 'spoke with the smart leaders of our mission directorates' and the consensus was 'America MUST dominate space and our critical moon mission, #ARTEMIS, must be as known and supported by America just as Apollo was!' He finished saying he was 'fired up and ready to launch.' Duffy repeated his advocacy of the Artemis program on the Fox News show 'Hannity.' He noted that Artemis would proceed in three phases: a return to the moon, establishing a lunar base or outpost and crewed expeditions to Mars. Considering how well the Artemis program polls, Duffy is pursuing a sound political strategy. The trick is that the steps he laid out have to happen on a sensible schedule. Fortunately, Artemis II, the crewed trip around the moon, is slated to occur early in 2026. On the other hand, science journalist Robert Zimmerman gave Duffy the back of his hand for stating on Hannity that Artemis III, the next moon landing, is still a go for 2027. Considering the problems the SpaceX Starship has been having, few people believe that date is valid. However, SpaceX's Gwynne Shotwell has assured Duffy that it is. We shall see. According to Politico, Duffy has called for a 100-kilowatt nuclear reactor to be deployed on the moon by 2030, to provide power for a lunar base. He has also called for the acceleration of commercial space stations that would replace the International Space Station when it ends its operational life. The new plan promises to be very disruptive. Duffy also had a meeting at the Kennedy Space Center with his Russian counterpart. Joey Roulette of Reuters reported that the meeting discussed ''cooperation on lunar programs' and 'joint exploration of deep space' as well as ISS cooperation,' according to Roscosmos. International Space Station cooperation is a natural topic of conversation between the head of NASA and the head of Roscosmos. The U.S. and Russia have been partners on the space station since early in the Clinton administration. The partnership exists in its own little universe, separate from the tensions between the two countries brought about by Russia's invasion of Ukraine. Ars Technica reports that Bakanov brought up the possibility of using Russian hardware to deorbit the ISS in 2030. Clearly, he was attempting to take advantage of the feud between Trump and Elon Musk, whose SpaceX currently has the contract. Roscosmos would get a much-needed infusion of cash if it replaced SpaceX. However, the mention of cooperation on lunar programs and the joint exploration of deep space catches the eye. Russia has turned down participation in the Artemis program, preferring to be a partner on China's planned International Lunar Research Station. Russian participation in Artemis was likely dangled as an enticement for Putin to make peace in Ukraine on terms short of conquering the entire country. It would also serve as a way to separate Russia from China, something that has been a center of American foreign policy since the Nixon administration. Finally, Duffy has to deal with the NASA spending war that has developed between the Congress and the White House. A group of Democratic senators sent him a letter expressing their concerns not only about the planned cuts for the next fiscal year but plans to rescind some allocated money for the current fiscal year. They are also concerned about a planned buyout program that would cut 4,000 NASA civil servants. The Senate and House are concerned about NASA's plans to implement the spending plans in the 'big, beautiful bill.' They are demanding answers by Sept. 1. Duffy will need the diplomatic skills of a Henry Kissinger to reconcile the positions of the two branches over NASA funding. As able as he is, the situation cries out for a permanent NASA administrator, someone with the respect of both President Trump and the Congress. Otherwise, the chaos will just continue, hampering the space agency's ability to fulfill its mandate to explore space, for the betterment of the United States and all humankind. Mark R. Whittington, who writes frequently about space policy, has published a political study of space exploration entitled 'Why is It So Hard to Go Back to the Moon?' as well as 'The Moon, Mars and Beyond' and, most recently, 'is America Going Back to the Moon' He blogs at Curmudgeons Corner. Copyright 2025 Nexstar Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed. Solve the daily Crossword