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Categories: Space: Astronomy

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

Complete stellar collapse: Unusual star system proves that stars can die quietly      (via sciencedaily.com)     Original source 

University of Copenhagen astrophysicists help explain a mysterious phenomenon, whereby stars suddenly vanish from the night sky. Their study of an unusual binary star system has resulted in convincing evidence that massive stars can completely collapse and become black holes without a supernova explosion.

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

Hubble views the dawn of a sun-like star      (via sciencedaily.com)     Original source 

Looking like a glittering cosmic geode, a trio of dazzling stars blaze from the hollowed-out cavity of a reflection nebula in a new image from NASA's Hubble Space Telescope. The triple-star system is made up of the variable star HP Tau, HP Tau G2, and HP Tau G3. HP Tau is known as a T Tauri star, a type of young variable star that hasn't begun nuclear fusion yet but is beginning to evolve into a hydrogen-fueled star similar to our Sun.

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

Detection of an Earth-sized exoplanet orbiting the ultracool dwarf star SPECULOOS-3      (via sciencedaily.com)     Original source 

Astronomers have just discovered a new Earth-sized exoplanet around SPECULOOS-3, an 'ultracool dwarf' star as small as Jupiter, twice as cold as our Sun, and located 55 light-years from Earth. After the famous TRAPPIST-1, SPECULOOS 3 is the second planetary system discovered around this type of star.

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

Researchers discover the universe's oldest stars in our own galactic backyard      (via sciencedaily.com)     Original source 

Astronomers discovered three of the oldest stars in the universe, and they live in our own galactic neighborhood. The stars are in the Milky Way's 'halo' -- the cloud of stars that envelopes the entire main galactic disk -- and they appear to have formed between 12 and 13 billion years ago, when the very first galaxies were taking shape.

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

Squeezed by neighbors, planet glows with molten lava      (via sciencedaily.com)     Original source 

Astrophysicists discovered that an exoplanet is covered with so many active volcanoes that seen from a distance it would take on a fiery, glowing-red hue.

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

Astrophysicists discover a novel method for hunting the first stars      (via sciencedaily.com)     Original source 

A recent study has discovered a novel method for detecting the first-generations stars, known as Population III (Pop III) stars, which have never been directly detected. These potential discoveries about Pop III stars hold the promise of unlocking the secrets of the universe's origin and providing a deeper understanding of the remarkable journey from the primordial cosmos to the world we inhabit today.

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

Possible atmosphere surrounding rocky exoplanet      (via sciencedaily.com)     Original source 

Researchers may have detected atmospheric gases surrounding 55 Cancri e, a hot rocky exoplanet 41 light-years from Earth. This is the best evidence to date for the existence of any rocky planet atmosphere outside our solar system.

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

Iron fingerprints in nearby active galaxy      (via sciencedaily.com)     Original source 

After starting science operations in February, Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) studied the monster black hole at the center of galaxy NGC 4151.

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

Venus has almost no water: A new study may reveal why      (via sciencedaily.com)     Original source 

Billions of years ago, Venus may have harbored as much water as Earth. Today, almost all of it has disappeared. A new study may help to explain why.

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

Astronomers observe elusive stellar light surrounding ancient quasars      (via sciencedaily.com)     Original source 

Astronomers observed the elusive starlight surrounding some of the earliest quasars in the universe. The findings may shed light on how the earliest supermassive black holes became so massive despite having a relatively short amount of cosmic time in which to grow.

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

Hubble views a galaxy with a voracious black hole      (via sciencedaily.com)     Original source 

Bright, starry spiral arms surround an active galactic center in a new NASA Hubble Space Telescope image of the galaxy NGC 4951. Located in the Virgo constellation, NGC 4951 is located roughly 50 million light-years away from Earth. It's classified as a Seyfert galaxy, which means that it's an extremely energetic type of galaxy with an active galactic nucleus (AGN).

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

New discoveries about Jupiter's magnetosphere      (via sciencedaily.com)     Original source 

New discoveries about Jupiter could lead to a better understanding of Earth's own space environment and influence a long-running scientific debate about the solar system's largest planet.

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

Webb telescope probably didn't find life on an exoplanet -- yet      (via sciencedaily.com)     Original source 

Recent reports of NASA's James Webb Space Telescope finding signs of life on a distant planet understandably sparked excitement. A new study challenges this finding, but also outlines how the telescope might verify the presence of the life-produced gas.

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

A 'cosmic glitch' in gravity      (via sciencedaily.com)     Original source 

Researchers have discovered a potential 'cosmic glitch' in the universe's gravity, explaining its strange behavior on a cosmic scale.

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

Webb captures top of iconic horsehead nebula in unprecedented detail      (via sciencedaily.com)     Original source 

NASA's James Webb Space Telescope has captured the sharpest infrared images to date of a zoomed-in portion of one of the most distinctive objects in our skies, the Horsehead Nebula. These observations show the top of the 'horse's mane' or edge of this iconic nebula in a whole new light, capturing the region's complexity with unprecedented spatial resolution.

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

NASA's Webb maps weather on planet 280 light-years away      (via sciencedaily.com)     Original source 

Researchers have successfully used NASA's James Webb Space Telescope to map the weather on the hot gas-giant exoplanet WASP-43 b.

Physics: General Physics: Quantum Physics Space: Astronomy Space: Astrophysics Space: Cosmology Space: General Space: Structures and Features
Published

Astronomers' simulations support dark matter theory      (via sciencedaily.com)     Original source 

Computer simulations by astronomers support the idea that dark matter -- matter that no one has yet directly detected but which many physicists think must be there to explain several aspects of the observable universe -- exists, according to the researchers.

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

Probing the effects of interplanetary space on asteroid Ryugu      (via sciencedaily.com)     Original source 

Samples reveal evidence of changes experienced by the surface of asteroid Ryugu, some probably due to micrometeoroid bombardment.