Showing 20 articles starting at article 381

< Previous 20 articles        Next 20 articles >

Categories: Engineering: Robotics Research, Space: Exploration

Return to the site home page

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: The Solar System
Published

NASA's Webb discovers dusty 'cat's tail' in Beta Pictoris System      (via sciencedaily.com)     Original source 

Beta Pictoris, a young planetary system located just 63 light-years away, continues to intrigue scientists even after decades of in-depth study. It possesses the first dust disk imaged around another star -- a disk of debris produced by collisions between asteroids, comets, and planetesimals. Observations from NASA's Hubble Space Telescope revealed a second debris disk in this system, inclined with respect to the outer disk, which was seen first. Now, a team of astronomers using NASA's James Webb Space Telescope to image the Beta Pictoris system (Beta Pic) has discovered a new, previously unseen structure.

Computer Science: Virtual Reality (VR) Engineering: Robotics Research
Published

Artificial intelligence helps unlock advances in wireless communications      (via sciencedaily.com)     Original source 

A new wave of communication technology is quickly approaching and researchers are now investigating ways to configure next-generation mobile networks.

Biology: Biochemistry Biology: General Biology: Zoology Chemistry: Biochemistry Engineering: Robotics Research
Published

A beating biorobotic heart aims to better simulate valves      (via sciencedaily.com)     Original source 

Combining a biological heart and a silicone robotic pump, researchers created a biorobotic heart that beats like a real one, with a focus on a valve on the left side of the heart. The heart valve simulator can mimic the structure, function, and motion of a healthy or diseased heart, allowing surgeons and researchers to demonstrate various interventions while collecting real-time data.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

NASA's Webb finds signs of possible aurorae on isolated brown dwarf      (via sciencedaily.com)     Original source 

Astronomers have found a brown dwarf (an object more massive than Jupiter but smaller than a star) with infrared emission from methane, likely due to energy in its upper atmosphere. This is an unexpected discovery because the brown dwarf, W1935, is cold and lacks a host star; therefore, there is no obvious source for the upper atmosphere energy. The team speculates that the methane emission may be due to processes generating aurorae.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: Structures and Features
Published

Unlocking the secrets of a 'Hot Saturn' and its spotted star      (via sciencedaily.com)     Original source 

A team of astronomers has unraveled the enigmatic atmosphere of the exoplanet HAT-P-18 b, shedding light on its intriguing blend of gases, clouds, and even the effects of its star's activity.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

'Blob-like' home of farthest-known fast radio burst is collection of seven galaxies      (via sciencedaily.com)     Original source 

In summer 2022, astronomers detected the most powerful and most distant fast radio burst (FRB) ever observed. Now, astronomers have pinpointed the extraordinary object's birthplace -- and it's rather curious, indeed. Using images from NASA's Hubble Space Telescope, the researchers traced the FRB back to not one galaxy but a group of at least seven galaxies.

Chemistry: Biochemistry Engineering: Robotics Research
Published

Towards more accurate 3D object detection for robots and self-driving cars      (via sciencedaily.com)     Original source 

Robots and autonomous vehicles can use 3D point clouds from LiDAR sensors and camera images to perform 3D object detection. However, current techniques that combine both types of data struggle to accurately detect small objects. Now, researchers have developed DPPFA Net, an innovative network that overcomes challenges related to occlusion and noise introduced by adverse weather. Their findings will pave the way for more perceptive and capable autonomous systems.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Final supernova results from Dark Energy Survey offer unique insights into the expansion of the universe      (via sciencedaily.com)     Original source 

In the culmination of a decade's worth of effort, scientists analyzed an unprecedented sample of more than 1,500 supernovae classified using machine learning. They placed the strongest constraints on the expansion of the universe ever obtained with the DES supernova survey. While consistent with the current standard cosmological model, the results do not rule out a more complex theory that the density of dark energy in the universe could have varied over time.

Computer Science: Artificial Intelligence (AI) Computer Science: General Engineering: Robotics Research Offbeat: Computers and Math Offbeat: General
Published

New soft robots roll like tires, spin like tops and orbit like moons      (via sciencedaily.com)     Original source 

Researchers have developed a new soft robot design that engages in three simultaneous behaviors: rolling forward, spinning like a record, and following a path that orbits around a central point. The device, which operates without human or computer control, holds promise for developing soft robotic devices that can be used to navigate and map unknown environments.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Three iron rings in a planet-forming disk      (via sciencedaily.com)     Original source 

Astronomers have detected a three-ringed structure in the nursery of planets in the inner planet-forming disk of a young star. This configuration suggests two Jupiter-mass planets are forming in the gaps between the rings. The detailed analysis is consistent with abundant solid iron grains complementing the dust composition. As a result, the disk likely harbors metals and minerals akin to those in the Solar System's terrestrial planets. It offers a glimpse into conditions resembling the early Solar System over four billion years ago during the formation of rocky planets such as Mercury, Venus, and Earth.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Space oddity: Uncovering the origin of the universe's rare radio circles      (via sciencedaily.com)     Original source 

Astronomers believe they may have found the origin of the universe's giant odd radio circles: they are shells formed by outflowing galactic winds, possibly from massive exploding stars known as supernovae.

Biology: Biochemistry Biology: General Biology: Marine Chemistry: Biochemistry Ecology: Sea Life Engineering: Robotics Research Offbeat: General Offbeat: Plants and Animals
Published

Fastest swimming insect could inspire uncrewed boat designs      (via sciencedaily.com)     Original source 

Whirligig beetles, the world's fastest-swimming insect, achieve surprising speeds by employing a strategy shared by fast-swimming marine mammals and waterfowl, according to a new study that rewrites previous explanations of the physics involved.

Engineering: Robotics Research
Published

Soft robotic, wearable device improves walking for individual with Parkinson's disease      (via sciencedaily.com)     Original source 

Researchers have used a soft, wearable robot to help a person living with Parkinson's walk without freezing. The robotic garment, worn around the hips and thighs, gives a gentle push to the hips as the leg swings, helping the patient achieve a longer stride. The device completely eliminated the participant's freezing while walking indoors, allowing them to walk faster and further than they could without the garment's help.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

New images reveal what Neptune and Uranus really look like      (via sciencedaily.com)     Original source 

Neptune is fondly known for being a rich blue and Uranus green -- but a new study has revealed that the two ice giants are actually far closer in color than typically thought. The correct shades of the planets have now been confirmed.

Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

Designing the 'perfect' meal to feed long-term space travelers      (via sciencedaily.com)     Original source 

Imagine blasting off on a multiyear voyage to Mars, fueled by a diet of bland, prepackaged meals. As space agencies plan for longer missions, they're grappling with the challenge of how to best feed people. Now, researchers have designed the optimal 'space meal': a tasty vegetarian salad. They chose fresh ingredients that meet male astronauts' specialized nutritional needs and can be grown in space.

Space: Astronomy Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

A carbon-lite atmosphere could be a sign of water and life on other terrestrial planets      (via sciencedaily.com)     Original source 

Best chance of finding liquid water, and even life on other planets, is to look for the absence of carbon dioxide in their atmospheres.

Offbeat: General Offbeat: Space Space: Astrophysics Space: Exploration Space: General Space: The Solar System
Published

Organic compounds in asteroids formed in colder regions of space      (via sciencedaily.com)     Original source 

Analysis of organic compounds -- called polycyclic aromatic hydrocarbons (PAHs) -- extracted from the Ryugu asteroid and Murchison meteorite has found that certain PAHs likely formed in the cold areas of space between stars rather than in hot regions near stars as was previously thought. The findings open new possibilities for studying life beyond Earth and the chemistry of objects in space.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Astronomers detect seismic ripples in ancient galactic disk      (via sciencedaily.com)     Original source 

 A new snapshot of an ancient, far-off galaxy could help scientists understand how it formed and the origins of our own Milky Way.   At more than 12 billion years old, BRI 1335-0417 is the oldest and furthest known spiral galaxy in our universe. The researchers were able to not only capture the motion of the gas around BRI 1335-0417, but also reveal a seismic wave forming -- a first in this type of early galaxy.  

Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

New 1.5-billion-pixel image shows Running Chicken Nebula in unprecedented detail      (via sciencedaily.com)     Original source 

While many holiday traditions involve feasts of turkey, soba noodles, latkes or Pan de Pascua, this year, the European Southern Observatory is bringing you a holiday chicken. The so-called Running Chicken Nebula, home to young stars in the making, is revealed in spectacular detail in this 1.5-billion-pixel image captured by the VLT Survey Telescope.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

NASA's Hubble watches 'spoke season' on Saturn      (via sciencedaily.com)     Original source 

A new photo of Saturn was taken by NASA's Hubble Space Telescope on October 22, 2023, when the ringed planet was approximately 850 million miles from Earth. Hubble's ultra-sharp vision reveals a phenomenon called ring spokes.