What we’re seeing is a removing of cooling that’s revealing warming that’s already there. So the air pollution isn’t the cause of the warming. It’s just letting us see stuff that we’ve already done.Listen to the interview on The Conversation Weekly podcast. You can also read an article by Laura Wilcox and her colleague Bjørn H. Samset about their recent research on The Conversation. This episode of The Conversation Weekly was written and produced by Mend Mariwany, Gemma Ware and Katie Flood. Mixing by Michelle Macklem and theme music by Neeta Sarl. Newsclips in this episode from Voice of America, CBC, AP Archive, ABC (News) Australia, WFLA NBC Channel 8 and PBS. Listen to The Conversation Weekly via any of the apps listed above, download it directly via our RSS feed or find out how else to listen here. A transcript of this episode is available via the Apple Podcasts or Spotify apps.
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NASA’s Psyche En Route to Asteroid: Unlocking the Secrets of Planet Formation
On Earth, the planet’s iron core is responsible for the magnetic field that shields our atmosphere and enables life.
Led by Arizona State University on NASA’s behalf, the $1.2 billion mission will use a roundabout route to get to the asteroid. The van-size spacecraft with solar panels big enough to fill a tennis court will swoop past Mars for a gravity boost in 2026. Three years later, it will reach the asteroid and attempt to go into orbit around it, circling as high as 440 miles (700 kilometers) and as close as 47 miles (75 kilometers) until at least 2031.
The spacecraft relies on solar electric propulsion, using xenon gas-fed thrusters and their gentle blue-glowing pulses. An experimental communication system is also along for the ride, using lasers instead of radio waves in an attempt to expand the flow of data from deep space to Earth. NASA expects the test to yield more than 10 times the amount of data, enough to transmit videos from the moon or Mars one day.
The spacecraft should have soared a year ago, but was held up by delays in flight software testing attributed to poor management and other issues. The revised schedule added extra travel time. So instead of arriving at the asteroid in 2026 as originally planned, the spacecraft won’t get there until 2029.
That’s the same year that another NASA spacecraft — the one that just returned asteroid samples to the Utah desert — will arrive at a different space rock as it buzzes Earth.
Last Updated on July 5, 2024 by Daily News Staff
On October 13, 2023, NASA’s Psyche spacecraft embarked on an extraordinary journey to study an asteroid of the same name. Carried by a SpaceX Falcon Heavy rocket, Psyche’s mission is to investigate this metal-rich world and provide invaluable insights into the formation of rocky planets. Accompanying this ambitious endeavor is NASA’s Deep Space Optical Communications technology demonstration, which will test laser communications beyond the Moon, paving the way for future exploration missions.

NASA/Aubrey Gemignani
The Psyche Mission
A Historic Launch:
Amidst great anticipation, Psyche successfully launched from NASA’s Kennedy Space Center in Florida. This momentous event marked the first-ever voyage to a metal-rich asteroid. As the spacecraft soared towards its destination, the fairings detached from the rocket, returning to Earth, and an hour later, Psyche separated from the rocket, preparing for the next phase of its mission.
Unveiling the Mysteries of Psyche:
Psyche promptly entered a planned safe mode, awaiting further commands from mission controllers on Earth. The spacecraft established communication with NASA’s Deep Space Network complex in Canberra, Australia, confirming its good health. With two-way communication established, scientists eagerly anticipate the treasure trove of scientific knowledge that Psyche will unlock.
A Metal World to Explore:
By August 2029, Psyche will begin orbiting the 173-mile-wide asteroid, becoming the first mission to explore a metal-class asteroid. With its high iron-nickel content, Psyche may be the remnant core of a planetesimal, offering valuable insights into the early stages of planet formation. This 26-month science investigation holds immense potential for expanding our understanding of the universe and our place within it.
The Journey and Propulsion System:
Psyche’s journey to the main asteroid belt between Mars and Jupiter spans six years and covers a distance of 2.2 billion miles. Powered by solar electric propulsion, the spacecraft employs charged atoms of xenon gas to create thrust, gently propelling it forward. Along the way, Psyche will utilize Mars’ gravity as a slingshot, further accelerating its journey towards the asteroid.
The Commissioning Phase:
The initial 100 days of the mission comprise a commissioning phase, during which all flight systems undergo thorough checks to ensure their health. Of particular importance is the readiness of the electric thrusters to continuously fire over long stretches of the trajectory. Simultaneously, the science instruments, including a magnetometer, gamma-ray and neutron spectrometer, and multispectral imager, will undergo active checkout.
Advancing Optical Communications:
One of the significant technological advancements accompanying the Psyche mission is NASA’s Deep Space Optical Communications technology demonstration. Approximately three weeks into the mission, when Psyche is approximately 4.7 million miles away from Earth, this technology will be powered on. This marks NASA’s first test beyond the Moon of high-data-rate optical communications, a critical capability for future space exploration.
As Psyche embarks on its mission to unravel the mysteries of the metal-rich asteroid, excitement and anticipation fill the air. The discoveries made during this journey hold the potential to reshape our understanding of planet formation and evolution. Moreover, the technological advancements demonstrated by the Deep Space Optical Communications technology will pave the way for bolder goals and greater achievements in space exploration. NASA’s commitment to exploring the unknown and inspiring the world through discovery has never been stronger.
More Mission Information
Arizona State University leads the Psyche mission. A division of Caltech in Pasadena, JPL is responsible for the mission’s overall management, system engineering, integration and test, and mission operations. Maxar Space in Palo Alto, California, provided the high-power solar electric propulsion spacecraft chassis.
JPL manages the Deep Space Optical Communications project for the Technology Demonstration Missions program within STMD and the Space Communications and Navigation Program within the Space Operations Mission Directorate.
NASA’s Launch Services Program, based at Kennedy Space Center, is responsible for the insight and approval of the launch vehicle and manages the launch service for the Psyche mission. NASA certified the SpaceX Falcon Heavy rocket for use with the agency’s most complex and highest priority missions in early 2023 at the conclusion of a 2.5-year effort.
Psyche is the 14th mission selected as part of NASA’s Discovery Program, managed by the agency’s Marshall Space Flight Center in Huntsville, Alabama.
For more information about NASA’s Psyche mission go to:
The science section of our news blog STM Daily News provides readers with captivating and up-to-date information on the latest scientific discoveries, breakthroughs, and innovations across various fields. We offer engaging and accessible content, ensuring that readers with different levels of scientific knowledge can stay informed. Whether it’s exploring advancements in medicine, astronomy, technology, or environmental sciences, our science section strives to shed light on the intriguing world of scientific exploration and its profound impact on our daily lives. From thought-provoking articles to informative interviews with experts in the field, STM Daily News Science offers a harmonious blend of factual reporting, analysis, and exploration, making it a go-to source for science enthusiasts and curious minds alike. https://stmdailynews.com/category/science/
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DoorDash Driver Arrested After Claiming Sexual Assault: What Really Happened?
A DoorDash driver who claimed she was sexually assaulted during a delivery is now facing felony charges after police say her viral video showed an unconscious, partially nude customer without consent. Here’s what investigators found and why the case is sparking national debate.
Last Updated on December 3, 2025 by Daily News Staff
DoorDash delivery driver involved in a viral video controversy after claiming sexual assault; police say no assault occurred, and the driver now faces felony charges.
DoorDash Driver Arrested After Claiming Sexual Assault: What Really Happened?
A Viral Accusation Turns Into a Criminal Case
A routine food drop-off turned into a national controversy this month after a DoorDash delivery driver claimed she was sexually assaulted during a delivery — only to later be arrested herself following a police investigation. The incident, which quickly spread across TikTok and other platforms, has generated fierce debate over privacy, personal safety, and the power of viral video culture.
The driver, identified as Livie Rose Henderson, posted a video on social media in mid-October claiming that when she arrived at a customer’s home in Oswego, New York, she found the front door open and discovered a man “half-naked and unconscious” on his couch. She publicly described the moment as a sexual assault, saying she felt endangered and traumatized.
Her posts went viral almost immediately, drawing attention from millions of viewers and sparking outrage over the safety risks faced by gig workers — particularly women — who make deliveries to unfamiliar homes.
But the narrative took a dramatic turn.
Police: No Sexual Assault Occurred
According to the Oswego Police Department, an investigation found no evidence that Henderson was sexually assaulted. Instead, authorities say that she:
Entered the home without consent
Recorded the unconscious customer, who was partially nude
Posted the footage online, identifying him
Made claims police say were “false and misleading”
Investigators concluded the man was intoxicated and unconscious, not acting with intent or awareness. As a result, Henderson was arrested and charged with:
Second-degree unlawful surveillance (felony)
First-degree dissemination of unlawful surveillance images (felony)
Police emphasized that recording a person who is nude or partially nude inside their home — regardless of context — constitutes a violation of New York’s surveillance and privacy laws if done without permission.
DoorDash Drops the Driver
Henderson also claimed that DoorDash deactivated her account, something she described as retaliation for “exposing her assaulter.” But following her arrest, DoorDash stated that recording customers inside their homes violates company policy and local laws.
DoorDash said it cooperated with investigators but declined to comment further on personnel matters.
A Complicated Public Reaction
Social media reaction has been sharply divided:
Sympathy for the driver
Many viewers initially supported Henderson, arguing that gig workers often deal with unsafe conditions and should not be forced to decide between finishing a delivery or backing away from a potentially threatening situation.
Backlash over privacy violations
Others argue that Henderson crossed legal and ethical boundaries by:
Entering a private residence
Recording a vulnerable, unconscious person
Posting it publicly
Accusing the individual of a crime without evidence
These actions, critics say, show the dangerous consequences of rushing to social media before police or professional investigators evaluate the facts.
The Larger Issue: Safety vs. Responsibility
This case highlights a broader tension in the era of app-based work and viral content:
Gig workers do indeed face unpredictable and sometimes unsafe situations.
Customers have a right to privacy in their homes.
Social media, meanwhile, rewards the fastest and most dramatic version of a story — even before the truth is known.
As the criminal process continues, Henderson’s case may set a new precedent for how privacy laws interact with the realities of delivery work and the instant visibility of online platforms.
Further Reading
DoorDash driver fired for sharing video of customer, claims sexual assault – Newsweek
Covers the viral video incident and how the driver’s DoorDash account was deactivated after she claimed sexual assault.
Details the police investigation and the subsequent charges filed against the driver.
The Viral ‘DoorDash Girl’ Saga Unearthed a Nightmare for Black Creators – Wired
Analyzes the social media fallout, the viral spread of the video, and the broader implications for gig workers and online creators.
Breaks down the conflicting narratives and public reactions to Henderson’s claims and the viral video.
DoorDash driver charged after recording, posting video of nude customer – WBTV
Official police statement on the investigation and the charges against Henderson.
Doordasher arrested over TikTok of half-naked customer – Law Enforcement Today
Focuses on the legal perspective, privacy violations, and the potential consequences of posting sensitive content online.
STM Daily News is a vibrant news blog dedicated to sharing the brighter side of human experiences. Emphasizing positive, uplifting stories, the site focuses on delivering inspiring, informative, and well-researched content. With a commitment to accurate, fair, and responsible journalism, STM Daily News aims to foster a community of readers passionate about positive change and engaged in meaningful conversations. Join the movement and explore stories that celebrate the positive impacts shaping our world.
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How China cleaned up its air pollution – and what that meant for the climate
How China cleaned up its air pollution: Beijing’s air quality went from hazardous to good while Delhi and Lahore still struggle. Discover how China dramatically reduced pollution since 2013—and why cleaner air may have unintended consequences for global warming and climate change.
How China cleaned up its air pollution – and what that meant for the climate
Dive into “The Knowledge,” where curiosity meets clarity. This playlist, in collaboration with STMDailyNews.com, is designed for viewers who value historical accuracy and insightful learning. Our short videos, ranging from 30 seconds to a minute and a half, make complex subjects easy to grasp in no time. Covering everything from historical events to contemporary processes and entertainment, “The Knowledge” bridges the past with the present. In a world where information is abundant yet often misused, our series aims to guide you through the noise, preserving vital knowledge and truths that shape our lives today. Perfect for curious minds eager to discover the ‘why’ and ‘how’ of everything around us. Subscribe and join in as we explore the facts that matter. https://stmdailynews.com/the-knowledge/
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The Hong Kong high-rise fire shows how difficult it is to evacuate in an emergency
Hong Kong High-Rise Fire: The deadly Hong Kong fire exposes critical challenges in evacuating tall buildings. Learn why stair descent is slower than expected, how human behavior causes delays, and what modern safety features can save lives.

The Hong Kong high-rise fire shows how difficult it is to evacuate in an emergency
Milad Haghani, The University of Melbourne; Erica Kuligowski, RMIT University, and Ruggiero Lovreglio, Te Kunenga ki Pūrehuroa – Massey University The Hong Kong high-rise fire, which spread across multiple buildings in a large residential complex, has killed dozens, with hundreds reported missing. The confirmed death toll is now 44, with close to 300 people still unaccounted for and dozens in hospital with serious injuries. This makes it one of Hong Kong’s deadliest building fires in living memory, and already the worst since the Garley Building fire in 1996. Although more than 900 people have been reportedly evacuated from the Wang Fuk Court, it’s not clear how many residents remain trapped. This catastrophic fire – which is thought to have spread from building to building via burning bamboo scaffolding and fanned by strong winds – highlights how difficult it is to evacuate high-rise buildings in an emergency.When the stakes are highest
Evacuations of high-rises don’t happen every day, but occur often enough. And when they do, the consequences are almost always severe. The stakes are highest in the buildings that are full at predictable times: residential towers at night, office towers in the day. We’ve seen this in the biggest modern examples, from the World Trade Center in the United States to Grenfell Tower in the United Kingdom. The patterns repeat: once a fire takes hold, getting thousands of people safely down dozens of storeys becomes a race against time. But what actually makes evacuating a high-rise building so challenging? It isn’t just a matter of “getting people out”. It’s a collision between the physical limits of the building and the realities of human behaviour under stress.It’s a long way down to safety
The biggest barrier is simply vertical distance. Stairwells are the only reliable escape route in most buildings. Stair descent in real evacuations is far slower than most people expect. Under controlled or drill conditions people move down at around 0.4–0.7 metres per second. But in an actual emergency, especially in high-rise fires, this can drop sharply. During 9/11, documented speeds at which survivors went down stairs were often slower than 0.3 m/s. These slow-downs accumulate dramatically over long vertical distances. Fatigue is a major factor. Prolonged walking significantly reduces the speed of descent. Surveys conducted after incidents confirm that a large majority of high-rise evacuees stop at least once. During the 2010 fire of a high-rise in Shanghai, nearly half of older survivors reported slowing down significantly. Long stairwells, landings, and the geometry of high-rise stairs all contribute to congestion, especially when flows from multiple floors merge into a single shaft. Slower movers include older adults, people with physical or mobility issues and groups evacuating together. These reduce the overall pace of descent compared with the speeds typically assumed for able-bodied individuals. This can create bottlenecks. Slow movers are especially relevant in residential buildings, where diverse occupants mean movement speeds vary widely. Visibility matters too. Experimental studies show that reduced lighting significantly slows down people going down stairs. This suggests that when smoke reduces visibility in real events, movement can slow even further as people hesitate, misjudge steps, or adjust their speed.Human behaviour can lead to delays
Human behaviour is one of the biggest sources of delay in high-rise evacuations. People rarely act immediately when an alarm sounds. They pause, look for confirmation, check conditions, gather belongings, or coordinate with family members. These early minutes are consistently some of the costliest when evacuating from tall buildings. Studies of the World Trade Center evacuations show the more cues people saw – smoke, shaking, noise – the more they sought extra information before moving. That search for meaning adds delay. People talk to colleagues, look outside windows, phone family, or wait for an announcement. Ambiguous cues slow them even further. In residential towers, families, neighbours and friend-groups naturally try to evacuate together. Groups tend to form wider steps, or group together in shapes that reduce overall flow. But our research shows when a group moves in a “snake” formation – one behind the other – they travel faster, occupy less space, and allow others to pass more easily. These patterns matter in high-rise housing, where varied household types and mixed abilities make moving in groups the norm.Why stairs aren’t enough
As high-rises grow taller and populations age, the old assumption that “everyone can take the stairs” simply no longer holds. A full building evacuation can take too long, and for many residents (older adults, people with mobility limitations, families evacuating together) long stair descents are sometimes impossible. This is why many countries have turned to refuge floors: fire- and smoke-protected levels built into towers as safe staging points. These can reduce bottlenecks and prevent long queues. They give people somewhere safe to rest, transfer across to a clearer stair, or wait for firefighters. Essentially, they make vertical movement more manageable in buildings where continuous descent isn’t realistic. Alongside them are evacuation elevators. These are lifts engineered to operate during a fire with pressurised shafts, protected lobbies and backup power. The most efficient evacuations use a mix of stairs and elevators, with ratios adjusted to the building height, density and demographics. The lesson is clear: high-rise evacuation cannot rely on one tool. Stairs, refuge floors and protected elevators should all be made part of ensuring vertical living is safer.STM Daily News is a vibrant news blog dedicated to sharing the brighter side of human experiences. Emphasizing positive, uplifting stories, the site focuses on delivering inspiring, informative, and well-researched content. With a commitment to accurate, fair, and responsible journalism, STM Daily News aims to foster a community of readers passionate about positive change and engaged in meaningful conversations. Join the movement and explore stories that celebrate the positive impacts shaping our world.
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