Trump Plan to Kill Dozens of NASA Missions Threatens US Space Supremacy
Engineers designed Perseverance to be the first step in the agency's exploration of the Red Planet. In the future, more robotic spacecraft would arrive to sweep up the capsules and rocket them back to Earth, where scientists could look for signs that Mars once was, or is, a world with life.
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Yahoo
15 minutes ago
- Yahoo
Jurassic World Rebirth has everything a Jurassic film should
Stephen Spielberg's original Jurassic Park film (1993) instilled awe and trepidation in his characters and audience alike. As his protagonists wrestled with the unintended consequences and ethical dilemmas of reanimating extinct apex predators, viewers marvelled at the novel use of CGI. At a keystroke it seemed to consign the hand-crafted stop-motion wonders of dinosaur films past to the archive. Alongside pulse-pounding action set pieces delivered with trademark Spielberg panache, that first film flamboyantly inaugurated a new era in fantasy effects. And it solicited delight and wonder from its audience. On opening day in New York the dinosaurs' first appearance prompted a spontaneous ovation: I was there and clapped too. Thirty-two years, six Jurassic iterations and countless monstrous digital apparitions later, that initial wow factor is a distant memory. By Jurassic World: Rebirth (set nearly 35 years after the original film) dinosaurs are treated by their human prey as barely more than inconvenient obstacles. They're dangerous, of course, but certainly not wondrous. Looking for something good? Cut through the noise with a carefully curated selection of the latest releases, live events and exhibitions, straight to your inbox every fortnight, on Fridays. Sign up here. Palaeontologist Dr Henry Loomis's (Jonathan Bailey) delight in coming face-to-face with his objects of study is a pale echo of the giddy euphoria that overtook Sam Neill and Laura Dern's characters all those years ago. In fact, early in the film we're told that the public have since lost all interest in dinosaurs. Wildlife parks and museum displays are closing and the animals themselves have mostly died off outside their quarantined tropical habitat. As this has information has little bearing for the plot, it's hard not to sense some ironic commentary from screenwriter David Koepp (returning to the franchise for the first time since 1997) on the exhaustion of the Jurassic Park model. Always incipiently reflexive – as a blockbuster set in a theme park – by this stage in the game, the franchise machinery is inescapably visible. Almost as ironic is a plot line promoting the open-source sharing of intellectual property for the benefit of the whole world rather than exploitative corporations. I doubt NBCUniversal-Comcast would agree. The Jurassic Park format is among the most unforgivingly rigid of any current film franchise. Each instalment (bar to some extent the last, the convoluted 2022 Jurassic World: Dominion, whose characters and story the new release completely ignores) places humans in perilous proximity to genetically rejuvenated sauropods. And generally does so in a remote, photogenic tropical location with minimal contact with the outside world. (Will the franchise ever run out of uncharted Caribbean islands where demented bio-engineers have wreaked evolutionary havoc?) The human characters in this new film are the usual pick-and-mix of daredevil adventurers, amoral corporate types and idealistic palaeontologists. And there are the mandatory school-age children too – important to keep the interest of younger viewers. The real stars of course, are the primeval leviathans who grow larger and more fearsome – though not more interesting – with each new episode of the franchise. How this human-dino jeopardy comes about tends not to matter very much. Jurassic World: Rebirth produces one of the least interesting MacGuffins in movie history (meaning something that drives the plot and which the charcters care about but the audience does not). Blood drawn from each of the three largest dinosaur species in the aforesaid remote tropical island will produce a serum to cure human heart disease (dinosaur hearts are huge, you see, so … never mind). This feeble contrivance suffices for sneery Big Pharma suit Martin (Rupert Friend) to hire freebooters Zora (Scarlett Johansson) and Duncan (Mahershala Ali) for his expedition. Along the way they encounter a marooned family (dad, two teens, one winsome but plucky grade-schooler) who subsequently have their own largely self-contained adventures before reuniting for the big climax. Franchise filmmaking is generally an auteur-free zone. Welsh blockbuster specialist Gareth Edwards is no Spielberg (though he pays homage at several point, notably in a waterborne first act studded with Jaws references). But he handles the action with unremarkable competence. In truth, Jurassic World: Rebirth suggests that the intellectual property so expensively vested in the franchise would benefit from some genetic modification. This article is republished from The Conversation under a Creative Commons license. Read the original article. Barry Langford does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.
Yahoo
15 minutes ago
- Yahoo
‘Gas station heroin': the drug sold as a dietary supplement that's linked to overdoses and deaths
The US Food and Drug Administration (FDA) has issued an urgent warning about tianeptine – a substance marketed as a dietary supplement but known on the street as 'gas station heroin'. Linked to overdoses and deaths, it is being sold in petrol stations, smoke shops and online retailers, despite never being approved for medical use in the US. But what exactly is tianeptine, and why is it causing alarm? Get your news from actual experts, straight to your inbox. Sign up to our daily newsletter to receive all The Conversation UK's latest coverage of news and research, from politics and business to the arts and sciences. Tianeptine was developed in France in the 1960s and approved for medical use in the late 1980s as a treatment for depression. Structurally, it resembles tricyclic antidepressants – an older class of antidepressant – but pharmacologically it behaves very differently. Unlike conventional antidepressants, which typically increase serotonin levels, tianeptine appears to act on the brain's glutamate system, which is involved in learning and memory. It is used as a prescription drug in some European, Asian and Latin American countries under brand names like Stablon or Coaxil. But researchers later discovered something unusual, tianeptine also activates the brain's mu-opioid receptors, the same receptors targeted by morphine and heroin – hence it's nickname 'gas station heroin'. At prescribed doses, the effect is subtle, but in large amounts, tianeptine can trigger euphoria, sedation and eventually dependence. People chasing a high might take doses far beyond anything recommended in medical settings. Despite never being approved by the FDA, the drug is sold in the US as a 'wellness' product or nootropic – a substance supposedly used to enhance mood or mental clarity. It's packaged as capsules, powders or liquids, often misleadingly labelled as dietary supplements. This loophole has enabled companies to circumvent regulation. Products like Neptune's Fix have been promoted as safe and legal alternatives to traditional medications, despite lacking any clinical oversight and often containing unlisted or dangerous ingredients. Some samples have even been found to contain synthetic cannabinoids and other drugs. According to US poison control data, calls related to tianeptine exposure rose by over 500% between 2018 and 2023. In 2024 alone, the drug was involved in more than 300 poisoning cases. The FDA's latest advisory included product recalls and import warnings. Users have taken to the social media site Reddit, including a dedicated channel, and other forums to describe their experiences, both the highs and the grim withdrawals. Some report taking hundreds of pills a day. Others struggle to quit, describing cravings and relapses that mirror those seen with classic opioid addiction. Since tianeptine doesn't show up in standard toxicology screenings, health professionals may not recognise it. According to doctors in North America, it could be present in hospital patients without being detected, particularly in cases involving seizures or unusual heart symptoms. People report experiencing withdrawal symptoms that resemble those of opioids, like fentanyl, including anxiety, tremors, insomnia, diarrhoea and muscle pain. Some have been hospitalised due to seizures, loss of consciousness and respiratory depression. In the UK, tianeptine is not licensed for medical use by the Medicines and Healthcare products Regulatory Agency and it is not classified as a controlled substance under the Misuse of Drugs Act 1971. That puts it in a legal grey area, not formally approved, but not illegal to possess either. It can be bought online from overseas vendors, and a quick search reveals dozens of sellers offering 'research-grade' powder and capsules. There is little evidence that tianeptine is circulating widely in the UK; to date, just one confirmed sample has been publicly recorded in a national drug testing database. It's not mentioned in recent Home Office or Advisory Council on the Misuse of Drugs briefings, and it does not appear in official crime or hospital statistics. But that may simply reflect the fact that no one is looking for it. Without testing protocols in place, it could be present, just unrecorded. Because of its chemical structure and unusual effects, if tianeptine did show up in a UK emergency department, it could easily be mistaken for a tricyclic antidepressant overdose, or even dismissed as recreational drug use. This makes it harder to diagnose and treat appropriately. It's possible, particularly among people seeking alternatives to harder-to-access opioids, or those looking for a legal high. With its low visibility, online availability and potential for addiction, tianeptine ticks many of the same boxes that once made drugs like mephedrone or spice popular before they were banned. The UK has seen waves of novel psychoactive substances emerge through similar routes, first appearing online or in head shops, then spreading quietly until authorities responded. If tianeptine follows the same path, by the time it appears on the radar, harm may already be underway. This article is republished from The Conversation under a Creative Commons license. Read the original article. Michelle Sahai does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.
CNN
15 minutes ago
- CNN
Congressionally mandated climate reports have disappeared from their federal websites
Legally mandated national climate assessments disappeared this week from the federal websites built to display them, making it harder for state and local governments and the public to learn what to expect in their backyards from a warming world. Scientists said the peer-reviewed authoritative reports save money and lives. Websites for the national assessments and the US Global Change Research Program were down Monday and Tuesday with no links, notes or referrals elsewhere. The White House, which was responsible for the assessments, said the information will be housed within NASA to comply with the law, but gave no further details. Searches for the assessments on NASA websites did not turn them up. NASA did not respond to requests for information. The National Oceanic and Atmospheric Administration, which coordinated the information in the assessments, did not respond to repeated inquiries. 'It's critical for decision makers across the country to know what the science in the National Climate Assessment is. That is the most reliable and well-reviewed source of information about climate that exists for the United States,' said University of Arizona climate scientist Kathy Jacobs, who coordinated the 2014 version of the report. 'It's a sad day for the United States if it is true that the National Climate Assessment is no longer available,' Jacobs said. 'This is evidence of serious tampering with the facts and with people's access to information, and it actually may increase the risk of people being harmed by climate-related impacts.' Harvard climate scientist John Holdren, who was President Obama's science advisor and whose office directed the assessments, said after the 2014 edition he visited governors, mayors and other local officials who told him how useful the 841-page report was. It helped them decide whether to raise roads, build seawalls and even move hospital generators from basements to roofs, he said. 'This is a government resource paid for by the taxpayer to provide the information that really is the primary source of information for any city, state or federal agency who's trying to prepare for the impacts of a changing climate,' said Texas Tech climate scientist Katharine Hayhoe, who has been a volunteer author for several editions of the report. Copies of past reports are still squirreled away in NOAA's library. NASA's open science data repository includes dead links to the assessment site. The most recent report, issued in 2023, included an interactive atlas that zoomed down to the county level. It found that climate change is affecting people's security, health and livelihoods in every corner of the country in different ways, with minority and Native American communities often disproportionately at risk. The 1990 Global Change Research Act requires a national climate assessment every four years and directs the president to establish an interagency United States Global Change Research Program. In the spring, the Trump administration told the volunteer authors of the next climate assessment that their services weren't needed and ended the contract with the private firm that helps coordinate the website and report. Days later, two of the biggest and most reputable Earth science societies announced they will pick up the slack and pursue a collection of reports in its place. Additionally, NOAA's main website was recently forwarded to a different NOAA website. Social media and blogs at NOAA and NASA about climate impacts for the general public were cut or eliminated. 'It's part of a horrifying big picture,' Holdren said. 'It's just an appalling whole demolition of science infrastructure.' The national assessments are more useful than international climate reports put out by the United Nations every seven or so years because they are more localized and more detailed, Hayhoe and Jacobs said. The national reports are not only peer reviewed by other scientists, but examined for accuracy by the National Academy of Sciences, federal agencies, the staff and the public. Hiding the reports would be censoring science, Jacobs said. And it's dangerous for the country, Hayhoe said, comparing it to steering a car on a curving road by only looking through the rearview mirror: 'And now, more than ever, we need to be looking ahead to do everything it takes to make it around that curve safely. It's like our windshield's being painted over.'
