Showing 20 articles starting at article 481

< Previous 20 articles        Next 20 articles >

Categories: Mathematics: Statistics, Space: The Solar System

Return to the site home page

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

Planetary system's second Earth-size world discovered      (via sciencedaily.com) 

Using data from NASA's Transiting Exoplanet Survey Satellite, scientists have identified an Earth-size world, called TOI 700 e, orbiting within the habitable zone of its star -- the range of distances where liquid water could occur on a planet's surface. The world is 95% Earth's size and likely rocky.

Space: Exploration Space: The Solar System
Published

Scientists find evidence for magnetic reconnection between Ganymede and Jupiter      (via sciencedaily.com) 

In June 2021, NASA's Juno spacecraft flew close to Ganymede, Jupiter's largest moon, observing evidence of magnetic reconnection. A team has used Juno data to examine the electron and ion particles and magnetic fields as the magnetic field lines of Jupiter and Ganymede merged, snapped and reoriented, heating and accelerating the charged particles in the region.

Space: Structures and Features Space: The Solar System
Published

Hydrogen masers reveal new secrets of a massive star      (via sciencedaily.com) 

While using the Atacama Large Millimeter/submillimeter Array (ALMA) to study the masers around oddball star MWC 349A scientists discovered something unexpected: a previously unseen jet of material launching from the star's gas disk at impossibly high speeds. What's more, they believe the jet is caused by strong magnetic forces surrounding the star. The discovery could help researchers to understand the nature and evolution of massive stars and how hydrogen masers are formed in space.

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

Physicists confirm effective wave growth theory in space      (via sciencedaily.com) 

Physicists have used spacecraft data to confirm an important theory of plasma physics that improves our understanding of space weather.

Mathematics: General Mathematics: Modeling Mathematics: Statistics
Published

Modelling the collective movement of bacteria      (via sciencedaily.com) 

A new paper presents a mathematical model for the motion of bacteria that includes cell division and death, the basic ingredients of the cell cycle.

Energy: Alternative Fuels Space: The Solar System
Published

The world's largest turbulence simulation unmasks the flow of energy in astrophysical plasmas      (via sciencedaily.com) 

Researchers uncover the long-hidden process that helps explain why the Sun's corona can be vastly hotter than the solar surface that emits it.

Space: Exploration Space: The Solar System
Published

Experimentalists: Sorry, no oxygen required to make these minerals on Mars      (via sciencedaily.com) 

When NASA's Mars rovers found manganese oxides in rocks in the Gale and Endeavor craters on Mars in 2014, the discovery sparked some scientists to suggest that the red planet might have once had more oxygen in its atmosphere billions of years ago. But a new experimental study upends this view. Scientists discovered that under Mars-like conditions, manganese oxides can be readily formed without atmospheric oxygen.

Space: Exploration Space: The Solar System
Published

Ancient asteroid grains provide insight into the evolution of our solar system      (via sciencedaily.com) 

The UK's national synchrotron facility, Diamond Light Source, was used by a large, international collaboration to study grains collected from a near-Earth asteroid to further our understanding of the evolution of our solar system. Researchers brought a fragment of the Ryugu asteroid to Diamond's Nanoprobe beamline I14 where a special technique called X-ray Absorption Near Edge Spectroscopy (XANES) was used to map out the chemical states of the elements within the asteroid material, to examine its composition in fine detail.

Space: Structures and Features Space: The Solar System
Published

Alien planet found spiraling to its doom around an aging star      (via sciencedaily.com) 

The condemned planet could help answer questions about the fate of other worlds as their solar systems evolve.

Space: Exploration Space: The Solar System
Published

Marsquake!      (via sciencedaily.com) 

The quake lasted four hours and identified layering in the crust that could indicate a meteoroid impact. The 4.7 magnitude temblor happened in May 2022 and released five times more energy than any previously recorded quake on Mars. Mapping the seismic activity on Mars will help inform scientists where and how to build structures to ensure the safety of future human explorers.

Space: Structures and Features Space: The Solar System
Published

Astronomers find that two exoplanets may be mostly water      (via sciencedaily.com) 

Astronomers have found evidence that two exoplanets orbiting a red dwarf star are 'water worlds,' planets where water makes up a large fraction of the volume.

Space: Cosmology Space: The Solar System
Published

Exquisite views of distant galaxies      (via sciencedaily.com)     Original source 

For decades, the Hubble Space Telescope provided us with the most spectacular images of galaxies. This all changed when the James Webb Space Telescope (JWST) launched and successfully completed commissioning. For astronomers, the universe is now revealed in a new way never imagined by the telescope's Near-Infrared Camera (NIRCam) instrument.

Space: Structures and Features Space: The Solar System
Published

ESPRESSO and CARMENES discover two potentially habitable exo-Earths around a star near the sun      (via sciencedaily.com) 

Researchers have discovered the presence of two planets with Earth-like masses in orbit around the star GJ 1002, a red dwarf not far from our solar system. Both planets are in the habitability zone of the star.

Space: The Solar System
Published

VLA and ALMA study Jupiter and Io      (via sciencedaily.com) 

VLA teams up with Juno spacecraft to study Jupiter's atmosphere, and ALMA reveals new details about Io's volcanoes.

Space: Exploration Space: The Solar System
Published

Sound recording made of dust devils (tiny tornadoes of dust, grit) on Mars      (via sciencedaily.com) 

When the rover Perseverance landed on Mars, it was equipped with the first working microphone on the planet's surface. Scientists have used it to make the first-ever audio recording of an extraterrestrial whirlwind.

Mathematics: Modeling Mathematics: Statistics
Published

AI model proactively predicts if a COVID-19 test might be positive or not      (via sciencedaily.com) 

A new study shows machine-learning models trained using simple symptoms, demographic features are effective in predicting COVID-19 infections.

Space: Exploration Space: The Solar System
Published

First ultraviolet imaging of Sun's middle corona      (via sciencedaily.com) 

Researchers have discovered web-like plasma structures in the Sun's middle corona. The researchers describe their innovative new observation method, imaging the middled corona in ultraviolet (UV) wavelength. The findings could lead to a better understanding of the solar wind's origins and its interactions with the rest of the solar system.

Space: Exploration Space: The Solar System
Published

Deep-space optical communication demonstration project forges ahead      (via sciencedaily.com) 

Scientists have demonstrated new laser systems for deep-space optical communication.

Space: The Solar System
Published

Hubble detects ghostly glow surrounding our solar system      (via sciencedaily.com) 

Imagine walking into a room at night, turning out all the lights and closing the shades. Yet an eerie glow comes from the walls, ceiling, and floor. The faint light is barely enough to see your hands before your face, but it persists. Sounds like a scene out of a scary movie?" No, for astronomers this is the real deal. But looking for something that's close to nothing is not easy.

Offbeat: Paleontology and Archeology Space: Cosmology Space: Structures and Features Space: The Solar System
Published

Meteorites plus gamma rays could have given Earth the building blocks for life      (via sciencedaily.com) 

Even as detailed images of distant galaxies from the James Webb Space Telescope show us more of the greater universe, scientists still disagree about how life began here on Earth. One hypothesis is that meteorites delivered amino acids -- life's building blocks -- to our planet. Now, researchers have experimentally shown that amino acids could have formed in these early meteorites from reactions driven by gamma rays produced inside the space rocks.