dernier Landing Page

dernier News Guide

Get updated News about latest trends, and more Get updated News about latest trends and updates products
dernier Service
>

Dernier Trends Updates

This website uses cookies to ensure you get the best experience on our website. By clicking "Accept", you agree to our use of cookies. Learn more

Trending Topics

📰 Trending Topics

Google News - Trending

Google News - Technology

NASA - Breaking News

NASA Investigates How People Respond to Air Taxi Noise

2026-02-19 20:54

3 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater)

An artist’s concept image shows the square, gray rooftop of a hospital building with three concept aircraft sitting on top. One aircraft is painted dark blue, and two are painted with red and white paint schemes. Each aircraft has several unique propellors and wings to showcase that these aircraft can take off and land on short runways or vertically. The words “Century Medical Center” – in red – sit below the rooftop landing pad with several rows of windows underneath. In the background, there are several rows of trees, buildings, and parking garages, to show that this building is inside of a city.
This artist’s concept shows several advanced air mobility aircraft concepts staged for a medical transport. NASA’s recent aircraft noise study included sounds from multiple types of advanced air mobility concept aircraft.
NASA/Lillian Gipson

New kinds of aircraft taking to the skies could mean unfamiliar sounds overhead — and where you’re hearing them might matter, according to new NASA research.

NASA aeronautics has worked for years to enable new air transportation options for people and goods, and to find ways to make sure they can be safely and effectively integrated into U.S. communities. That’s why the agency continues to study how people respond to aircraft noise.  

In this case, NASA’s work focused on air taxis, shorthand for a variety of aircraft intended to carry people short distances for everything from personal travel to medical treatment. Researchers investigated whether residents in loud cities would respond differently to air taxi sounds than those in quieter suburban settings.

From late August through September 2025, 359 participants in the Los Angeles, New York City, and Dallas-Fort Worth areas took part in NASA’s Varied Advanced Air Mobility Noise and Geographic Area Response Difference (VANGARD) test.

Researchers played 67 unique sounds simulating aircraft, including NASA-owned industry concept designs. To ensure unbiased feedback, the research team withheld aircraft manufacturer names. Participants were also not shown images of the aircraft they were hearing.

Initial results reveal that residents living in noisy areas reported being more bothered by the air taxi sounds than those in quieter areas. The VANGARD team members are currently analyzing the data to better understand these findings, but so far, they’re hypothesizing that people in loud environments may simply be more sensitive to additional noise. 

A man wearing a white and red plaid shirt sits to the right side of the image in front of a keyboard, a blue stand microphone, and two monitors. He wears black over ear headphones and looks at a computer screen with a white background and black letters.
Researcher Sidd Krishnamurthy tests the remote platform developed to study human response to air taxi noise at NASA’s Langley Research Center in Hampton, Virginia.
NASA/Ally Olney

“With air taxis coming soon, we need to understand how people will react to a variety of future aircraft sounds,” said Sidd Krishnamurthy, lead researcher at NASA’s Langley Research Center in Hampton, Virginia. “This test filled a critical gap, and its results will improve how we predict human reactions to noise, guiding the design and operation of future aircraft.”

During the study, participants listened to individual aircraft flyover sounds and rated their annoyance levels. The participants also provided their zip codes, allowing the researchers to sort their locations into high and low background noise levels.  “We wanted to know if people in low or high background noise zones would be more annoyed by the air taxi sounds, and to what extent, even without their usual background sounds present during the test,” Krishnamurthy said.

Most participants listened from their home locations, with their own audio devices. But to complement that testing, a control group of 20 people listened in-person at NASA Langley in June, using tablets and headphones with fixed audio settings.

Results showed that the control group responded similarly to those who tested from home.

Many factors influence how humans respond to aircraft noise. This study was not designed to answer every question — for example, it did not look at the potential effects of high background noise masking air taxi noise — but it provided the VANGARD team with initial insights.

The results from this study, and any follow-on efforts, will guide the design and operation of future advanced air mobility aircraft to help designers and regulators determine how and where these aircraft may fly.

This research was led under the Revolutionary Vertical Lift Technology project and contributes to NASA’s advanced air mobility research.  The project falls under the Advanced Air Vehicles Program within NASA’s Aeronautics Research Mission Directorate.

NASA Releases Report on Starliner Crewed Flight Test Investigation

2026-02-19 19:06

Boeing’s Starliner spacecraft that launched NASA’s Crew Flight Test astronauts Butch Wilmore and Suni Williams to the International Space Station is pictured docked to the Harmony module’s forward port on July 3, 2024. This view is from a window on the SpaceX Dragon Endeavour spacecraft docked to the port adjacent to the Starliner.
Credit: NASA

At a news conference on Thursday, NASA released a report of findings from the Program Investigation Team examining the Boeing CST-100 Starliner Crewed Flight Test as part of the agency’s Commercial Crew Program.  

“The Boeing Starliner spacecraft has faced challenges throughout its uncrewed and most recent crewed missions. While Boeing built Starliner, NASA accepted it and launched two astronauts to space. The technical difficulties encountered during docking with the International Space Station were very apparent,” said NASA Administrator Jared Isaacman.  

“To undertake missions that change the world, we must be transparent about both our successes and our shortcomings. We have to own our mistakes and ensure they never happen again. Beyond technical issues, it is clear that NASA permitted overarching programmatic objectives of having two providers capable of transporting astronauts to-and-from orbit, influence engineering and operational decisions, especially during and immediately after the mission. We are correcting those mistakes. Today, we are formally declaring a Type A mishap and ensuring leadership accountability so situations like this never reoccur. We look forward to working with Boeing as both organizations implement corrective actions and return Starliner to flight only when ready.” 

Starliner launched June 5, 2024, on its first crewed test flight to the International Space Station. Originally planned as an eight-to-14-day mission, the flight was extended to 93 days after propulsion system anomalies were identified while the spacecraft was in orbit. After reviewing flight data and conducting ground test at White Sands Test Facility, NASA decided to return the spacecraft without NASA astronauts Butch Wilmore and Suni Williams. Starliner returned from the space station in September 2024, landing at White Sands Space Harbor in New Mexico. Wilmore and Williams later returned safely to Earth aboard the agency’s SpaceX’s Crew-9 mission in March 2025. 

In February 2025, NASA chartered an independent Program Investigation Team to investigate the technical, organizational, and cultural contributors to the test flight issues.  

This report was completed in November 2025. NASA and Boeing have been working together since Starliner returned 18 months ago to identify and address the challenges encountered during the mission, and the technical root cause work continues. 

Investigators identified an interplay of combined hardware failures, qualification gaps, leadership missteps, and cultural breakdowns that created risk conditions inconsistent with NASA’s human spaceflight safety standards. NASA will accept this as the final report.  

As a result, NASA is taking corrective actions to address the findings of the report, in an effort to ensure the lessons learned contribute to crew and mission safety of future Starliner flights and all NASA programs. Due to the loss of the spacecraft’s maneuverability as the crew approached the space station and the associated financial damages incurred, NASA has classified the test flight as a Type A mishap. While there were no injuries and the mission regained control prior to docking, this highest-level classification designation recognizes there was potential for a significant mishap. 

NASA will continue to work closely with Boeing to fully understand and solve the technical challenges with the Starliner vehicle alongside incorporating the investigative recommendations before flying the next mission.  

For the full report, which includes redactions in coordination with our commercial partner to protect proprietary and privacy-sensitive material is available online. A 508-compliant version of the report is forthcoming, and will be posted on this page. NASA will update with an editor’s note when complete.

https://www.nasa.gov/wp-content/uploads/2026/02/nasa-report-with-redactions-021926.pdf?emrc=76e561

-end-

Bethany Stevens / Cheryl Warner
Headquarters, Washington
202-358-1600
bethany.c.stevens@nasa.gov / cheryl.m.warner@nasa.gov

Share

Details

Last Updated
Feb 19, 2026
Editor
Cheryl Warner

NASA to Provide Starliner Crew Flight Test Review Findings Today

2026-02-19 17:09

NASA meatball
Credit: NASA

During a news conference at 2 p.m. EST on Thursday NASA will discuss the findings of investigations into the 2024 crewed test flight of Boeing Starliner to the International Space Station.

The news conference will stream live on NASA’s YouTube channel. An instant replay will be available online.

NASA participants include:

  • Administrator Jared Isaacman
  • Associate Administrator Amit Kshatriya

To ask questions during the news conference, media must RSVP no later than 30 minutes prior to the start of the call to the NASA Headquarters newsroom at: hq-media@mail.nasa.gov. NASA’s media accreditation policy is available online.

For NASA’s blog and more information about the mission, visit:

https://www.nasa.gov

-end-

Bethany Stevens / Cheryl Warner
Headquarters, Washington
202-358-1600
bethany.c.stevens@nasa.gov / cheryl.m.warner@nasa.gov

Share

Details

Last Updated
Feb 19, 2026
Editor
Jennifer M. Dooren
Award-Winning NASA Camera Revolutionizes How We See the Invisible

2026-02-19 16:31

4 Min Read

Award-Winning NASA Camera Revolutionizes How We See the Invisible

A shock wave interacting with a thin layer of fluid at Mach 10 in a wind tunnel, as captured by the Self-Aligned Focusing Schlieren (SAFS) system invented in 2020 by researchers at NASA’s Langley Research Center in Hampton, Virginia. Compared to conventional Schlieren imaging it eliminates irrelevant features such astunnel boundary layers, off-plane shockwaves, and flow structures from temperature variations outside the wind tunnel.
A shock wave interacting with a thin layer of fluid at Mach 10 in a wind tunnel, as captured by the Self-Aligned Focusing Schlieren (SAFS) system invented in 2020 by researchers at NASA’s Langley Research Center in Hampton, Virginia. Compared to conventional Schlieren imaging it eliminates irrelevant features such astunnel boundary layers, off-plane shockwaves, and flow structures from temperature variations outside the wind tunnel.
Credits: NASA/Brett Bathel

Imagine trying to photograph wind. That’s similar to what NASA engineers dealt with during a recent effort to study how air moves around planes, rockets, and other kinds of aerospace vehicles. Air is invisible, but our understanding of how it flows is crucial for building better, safer aircraft.

For 80 years, researchers used a technique called “focused schlieren imaging.” Think of it as a special camera system that can “see” air movement by detecting tiny changes in its density. It’s the same effect that lets you to see heat waves rising from hot pavement on a sunny day — just much more precise.

The Self-Aligned Focusing Schlieren (SAFS) system is a game-changer. It’s a compact, low-cost, easy-to-use visualization tool that is less complex than traditional focusing schlieren systems.

“What makes this breakthrough compelling is the ripple effect,” said NASA’s Brett Bathel, who invented the SAFS alongside fellow engineer Joshua Weisberger at the agency’s Langley Research Center in Hampton, Virginia. “When researchers can see and understand air movement in ways that were previously difficult to achieve, it leads to better aircraft designs and safer flights for everyone.”

The video plays in black and white colors. The top portion of the video shows a black line moving up and down, sometimes at diagonal angles. This is a shockwave as imaged with a conventional schlieren system. The bottom portion is gray colored with some white lines running through it. This is again a visualization of a shockwave for the same conditions but imaged with a SAFS system. There is an absence of image artifacts.
The SAFS system is an innovative measurement technology the uses cameras and light polarization to visualize flow structures. In this video, the SAFS is showing the middle section of a rocket booster and capturing the complex shock structures along the booster for various angles of attack.
NASA/Brett Bathel

Switching from older systems to SAFS in wind tunnels and other specialized research environments allows aerospace engineers to gather high-speed flow visualization data more efficiently, with less facility downtime, and lower costs. For the aviation industry, it opens doors to new discoveries, potentially revolutionizing how we design everything from commercial airliners to spacecraft.

With SAFS in its toolbox, NASA is also better positioned to meet its mission goals related to efficiency and safety in aviation and space. Researchers are using SAFS to capture flow separation on the High Lift Common Research Model, a tool for improving how accurately we can predict the takeoff and landing performance of new aircraft. And it’s helping them investigate shock cell structures — diamond shapes that form in exhaust plumes — for the Space Launch System model.

The NASA technology is already being used worldwide, adopted by over 50 institutions in more than 8 countries, from Notre Dame to the University of Liverpool. Companies continue to license the technology and commercial versions are hitting the market.

The impact has been so significant that NASA’s researchers earned multiple awards. R&D World gave SAFS a spot on its 2025 R&D 100 Awards, selected by a panel of global experts.

NASA also named the SAFS a 2025 NASA Government Invention of the Year, the highest award the agency gives to groundbreaking technologies.

Giant Leap Ahead

To understand why the SAFS is a big deal, you need to know what researchers were working with before.

The older focused schlieren imaging setup required researchers to have access to both sides of what they were testing. They needed to set up separate grids of light sources on each side and align them perfectly with each other. It’s the equivalent of lining up two window screens on opposite sides of a room so their patterns match exactly.

A black camera lenses is mounted along with a black, sliver, and blue set up to stabilize the camera. The system is standing on a silver table with even distributed holes.
The SAFS system is an imaging method developed by Brett Bathel and Joshua Weisberger at NASA’s Langley Research Center in Hampton, Virginia. It provides researchers with a simple setup for testing than the complex, manual alignment needed with traditional dual-grid setup systems.
NASA/

Setting up one of these systems could take weeks of painstaking adjustments, and if someone accidentally bumped the system or needed to make an adjustment? Start over.

Enter the SAFS system. In 2020, NASA researchers asked a critical question: What would happen if they could eliminate all that complexity by using the properties of light itself?

The solution? Light polarization. Your polarized sunglasses work by filtering light in specific directions. The SAFS system does something similar, using light polarization to create the same effect as the older, cumbersome dual-grid setup. The SAFS system only requires access to one side of the object you’re testing. And, instead of needing two separate grids that must be perfectly aligned, it uses just one grid that does double duty.

What used to take weeks of setup now takes just minutes. Need to make adjustments? No problem. The SAFS system can tweak sensitivity, change its field of view, or adjust focus on the fly. The system is compact and immune to vibrations (goodbye, starting-over-because-someone-walked-by).

Sometimes revolutionary advances come not from adding complexity, but from finding new creative solutions to age-old problems. The SAFS is proof that there’s always room for innovation — and this one is already making its mark on the world.

The work on SAFS was supported through NASA’s Aerosciences Evaluation and Test Capabilities portfolio office and Transformational Tools and Technologies project, which works to develop new computational tools to help predict aircraft performance. The project is part of NASA’s Transformative Aeronautics Concepts Program under its Aeronautics Research Mission Directorate.

About the Author

Diana Fitzgerald

Writer

Crystals Grown in Space

2026-02-19 16:12

An extreme close-up on crystals. They are geometric in shape, some looking like squares while others are hexagons. Orange light shines from behind the crystals. The light shines through the crystals that face us and highlights their edges.
Redwire

This June 5, 2024, image shows lysozyme crystals aboard the International Space Station. Lysozyme is a protein found in bodily fluids like tears, saliva, and milk, and is used as a control compound to demonstrate well-formed crystals. Lysozyme plays a vital role in innate immunity, protecting against bacteria, viruses, and fungi. The crystals were grown with Redwire’s PIL-BOX in a study of the effect of microgravity on various types of crystals production.

Image credit: Redwire

TechCrunch - Latest

Google says its AI systems helped deter Play Store malware in 2025

2026-02-19 21:27

Google said it prevented 1.75 million bad apps from going live on Google Play during 2025, a figure that's down from previous years.
An AI data center boom is fueling Redwood’s energy storage business

2026-02-19 21:10

Redwood Materials says its new energy storage business is the fastest growing unit within the company.
Why these startup CEOs don’t think AI will replace human roles

2026-02-19 20:47

The CEOs of Read AI and Lucidya told TechCrunch at Web Summit Qatar that they see AI tools replacing tasks, rather than workers.
YouTube’s latest experiment brings its conversational AI tool to TVs

2026-02-19 20:30

YouTube is testing conversational AI on smart TVs, allowing viewers to ask the assistant questions related to the video they're watching on the big screen.
Toyota hires seven Agility humanoid robots for Canadian factory

2026-02-19 20:29

The robots will be unloading totes full of auto parts from an automated warehouse tugger.
×
Useful links
Home
Definitions Terminologies
Socials
Facebook Instagram Twitter Telegram
Help & Support
Contact About Us Write for Us




3 months ago Category :
Zurich, Switzerland Trends: What's Hot in the City

Zurich, Switzerland Trends: What's Hot in the City

Read More →
3 months ago Category :
YouTube Content Creation and Translation Trends in 2021

YouTube Content Creation and Translation Trends in 2021

Read More →
3 months ago Category :
YouTube Channel Trends: What's Hot in the World of Online Video Content

YouTube Channel Trends: What's Hot in the World of Online Video Content

Read More →
3 months ago Category :
The FIFA World Cup is one of the most highly anticipated events in the world of sports, capturing the attention of millions of fans around the globe. Along with the excitement of the games themselves, there are also various trends and developments that emerge during each tournament. Let's take a look at some of the recent World Cup trends that have shaped the tournament in recent years.

The FIFA World Cup is one of the most highly anticipated events in the world of sports, capturing the attention of millions of fans around the globe. Along with the excitement of the games themselves, there are also various trends and developments that emerge during each tournament. Let's take a look at some of the recent World Cup trends that have shaped the tournament in recent years.

Read More →
3 months ago Category :
"The Future of Work Skills Development: Trends to Watch"

"The Future of Work Skills Development: Trends to Watch"

Read More →
3 months ago Category :
Emerging Trends in Workplace Health Promotion Networks

Emerging Trends in Workplace Health Promotion Networks

Read More →
3 months ago Category :
When it comes to women's clothing trends, there are always exciting new styles and designs to explore. From the runways to the streets, fashion is constantly evolving and changing. In this blog post, we will discuss some of the hottest trends in women's clothing that are currently making waves in the fashion world.

When it comes to women's clothing trends, there are always exciting new styles and designs to explore. From the runways to the streets, fashion is constantly evolving and changing. In this blog post, we will discuss some of the hottest trends in women's clothing that are currently making waves in the fashion world.

Read More →
3 months ago Category :
With the increase in awareness surrounding gender equality and women's rights, the importance of acknowledging and addressing wives' matters has become a trending topic in recent years. Wives play a crucial role in families and society, yet their needs and challenges are often overlooked or brushed aside. It is essential to recognize that wives have their own set of concerns, aspirations, and struggles that deserve attention and support.

With the increase in awareness surrounding gender equality and women's rights, the importance of acknowledging and addressing wives' matters has become a trending topic in recent years. Wives play a crucial role in families and society, yet their needs and challenges are often overlooked or brushed aside. It is essential to recognize that wives have their own set of concerns, aspirations, and struggles that deserve attention and support.

Read More →
3 months ago Category :
Wholesale Products Trends in 2021: What to Watch Out For

Wholesale Products Trends in 2021: What to Watch Out For

Read More →
3 months ago Category :
The Latest Weight Loss Diet Trends: What's Hot in 2022

The Latest Weight Loss Diet Trends: What's Hot in 2022

Read More →
2 years ago
Les sports nautiques gagnent en popularité, et pour profiter pleinement de ces activités, il est essentiel de disposer de l'équipement adéquat. Que vous pratiquiez le kayak, le paddle, la planche à voile ou le ski nautique, il existe une large gamme de gadgets et de produits innovants pour améliorer votre expérience en plein air.

Les sports nautiques gagnent en popularité, et pour profiter pleinement de ces activités, il est essentiel de disposer de l'équipement adéquat. Que vous pratiquiez le kayak, le paddle, la planche à voile ou le ski nautique, il existe une large gamme de gadgets et de produits innovants pour améliorer votre expérience en plein air.

Read More →
2 years ago
Les beaux jours arrivent et avec eux, l'envie de sortir son vélo pour profiter de l'air frais et du beau temps. Pour être parfaitement équipé pour vos balades à vélo, il est essentiel de disposer des accessoires de cyclisme les plus tendance du moment. Découvrons ensemble les accessoires incontournables pour les amateurs de vélo en cette saison.

Les beaux jours arrivent et avec eux, l'envie de sortir son vélo pour profiter de l'air frais et du beau temps. Pour être parfaitement équipé pour vos balades à vélo, il est essentiel de disposer des accessoires de cyclisme les plus tendance du moment. Découvrons ensemble les accessoires incontournables pour les amateurs de vélo en cette saison.

Read More →
2 years ago
Les amateurs de pêche sont toujours à la recherche des derniers équipements pour améliorer leur expérience en plein air. Que vous soyez un pêcheur débutant ou expérimenté, il est essentiel d'avoir le bon équipement pour tirer le meilleur parti de vos sorties de pêche. Aujourd'hui, nous allons explorer les tendances en matière d'équipement de pêche pour vous aider à choisir les meilleurs produits pour vos besoins.

Les amateurs de pêche sont toujours à la recherche des derniers équipements pour améliorer leur expérience en plein air. Que vous soyez un pêcheur débutant ou expérimenté, il est essentiel d'avoir le bon équipement pour tirer le meilleur parti de vos sorties de pêche. Aujourd'hui, nous allons explorer les tendances en matière d'équipement de pêche pour vous aider à choisir les meilleurs produits pour vos besoins.

Read More →
2 years ago
Les amateurs de randonnée et de plein air sont toujours à la recherche des derniers équipements et gadgets pour rendre leurs expéditions encore plus agréables et fluides. Voici un aperçu des dernières tendances en matière d'équipement de randonnée :

Les amateurs de randonnée et de plein air sont toujours à la recherche des derniers équipements et gadgets pour rendre leurs expéditions encore plus agréables et fluides. Voici un aperçu des dernières tendances en matière d'équipement de randonnée :

Read More →
2 years ago
Les beaux jours arrivent et avec eux, l'envie de partir en plein air pour profiter de la nature. Que vous soyez un amateur de camping chevronné ou que vous découvriez ce loisir pour la première fois, il est essentiel d'avoir les équipements adéquats pour passer un séjour confortable en plein air. Dans cet article, nous allons parler des tendances en matière d'équipement de camping, en mettant en lumière les essentiels à emporter lors de vos escapades en pleine nature.

Les beaux jours arrivent et avec eux, l'envie de partir en plein air pour profiter de la nature. Que vous soyez un amateur de camping chevronné ou que vous découvriez ce loisir pour la première fois, il est essentiel d'avoir les équipements adéquats pour passer un séjour confortable en plein air. Dans cet article, nous allons parler des tendances en matière d'équipement de camping, en mettant en lumière les essentiels à emporter lors de vos escapades en pleine nature.

Read More →