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Astronomers Identify Potential First Generation Stars in Distant Galaxy
For years, astronomers have hunted for Population III (Pop III) stars. These are the first stars ever born, composed *only* of the hydrogen and helium left over from the Big Bang. They were massive, lived short, violent lives, and died out long ago. Now, a team led by Ari Visbal believes they've spotted their signature in a distant galaxy called LAP1-B, and it's the first candidate to match all theoretical predictions.
7 days ago1 min read


A Mysterious Glow in the Milky Way
Johns Hopkins researchers may have identified a compelling clue in the ongoing hunt to prove the existence of dark matter. A mysterious diffuse glow of gamma rays near the center of the Milky Way has stumped researchers for decades. Now, new research published in Physical Review Letters suggests two leading theories—colliding dark matter particles or rapidly spinning neutron stars—are equally likely to be the cause.
Oct 171 min read


New observations reveal the dramatic interplay between gravity and magnetic fields in the birth of giant stars.
Astronomers have captured the clearest picture yet of how massive stars are born. A team led by Dr. Qizhou Zhang from the Center for Astrophysics | Harvard & Smithsonian used the Atacama Large Millimeter/submillimeter Array (ALMA) to conduct the largest and most detailed survey to date of magnetic fields in 17 regions where clusters of massive stars are forming.
Oct 91 min read


New research reveals the secrets of Mars's weather, one whirlwind at a time.
For twenty years, two European spacecraft have been watching the red planet. Now, by combing through their vast archives, scientists have done something remarkable: they've created the first global map of Martian "dust devils," the tornado-like whirlwinds that sculpt the planet's surface. The findings, published in Science Advances, track over a thousand of these twisters, revealing a dynamic weather system with winds far faster than we ever expected.
Oct 91 min read


New observations reveal an active low-mass-ratio contact binary Star
Astronomers from Australia and Serbia have performed multi-band photometric observations of a binary star known as V717 Andromedae, finding it to be an active, low-mass-ratio contact binary system. The research, published on the arXiv preprint server, provides the first detailed look at this fascinating system, where two stars are locked in an extreme gravitational dance.
Oct 91 min read


A solar magnetic field phenomenon has been detected near Earth for the first time
First discovered by NASA's Parker Solar Probe near the sun, magnetic "switchbacks" are S-shaped kinks in magnetic field lines. Now, researchers analyzing data from the Magnetospheric Multiscale mission have observed a switchback-shaped structure in Earth's own magnetic field.
Oct 91 min read


Astronomers have discovered a relic from the early universe
Not all stars are created equally. The first stars after the Big Bang were made almost purely of hydrogen and helium. Each successive generation was forged from the ashes of the last, becoming progressively richer in heavier elements. Now, astronomers led by Alexander Ji believe they have found the most "pristine" star on record—SDSS J0715-7334—a red giant that offers an unprecedented window into the universe's infancy.
Oct 81 min read


New research suggests Einstein's theory of general relativity could act as a "dynamical shield
In the hunt for extraterrestrial life, astronomers are looking beyond sun-like stars to a surprising candidate: white dwarfs, the hot, dense remnants of dead stars. While these stellar embers have habitable zones, it was thought that gravitational nudges from nearby planets would trigger lethal tidal heating. However, new simulations show that Einstein's theory of general relativity can stabilize these worlds, preserving their oceans and their potential for life.
Oct 81 min read


New observations from the James Webb Space Telescope peer into one of the Milky Way's most active and extreme star-forming clouds
Sagittarius B2 (Sgr B2) is a titan of star formation, a dense cloud near our galactic center churning out new stars at a furious pace. Using the unprecedented power of the James Webb Space Telescope's infrared eyes, astronomers have pierced through the obscuring dust to get their clearest view yet of this stellar nursery, revealing hidden structures and challenging previous assumptions about how stars form in extreme environments.
Sep 231 min read


Samples returned from Asteroid Bennu reveal a time capsule containing ingredients from before our solar system was even born
The OSIRIS-REx mission has successfully brought back pieces of the near-Earth asteroid Bennu, and the findings are extraordinary. More than just a simple space rock, Bennu is a composite object, assembled from the rubble of a much larger parent body. Its chemistry tells a story of materials gathered from the hot inner solar system, the icy outer reaches, and even from ancient stars that died long before our sun ignited.
Aug 281 min read


CHORD: The Ambitious Canadian Project Set to Change Astronomy
Building on the wild success of its predecessor, CHIME, the Canadian Hydrogen Observatory and Radio-transient Detector (CHORD) will be an order of magnitude more powerful. This homegrown telescope will leverage cutting-edge technology to detect thousands of Fast Radio Bursts (FRBs) in real-time, giving astronomers an unprecedented tool to map the cosmos and understand the enigmatic sources of these fleeting, powerful signals.
Aug 281 min read


NASA's Perseverance Rover Explores New Terrain at Soroya Ridge
After a mini-campaign studying wind-formed features at a location named Parnasset, Perseverance executed three successful drives to arrive at Soroya. This striking landform was first identified from orbit due to its bright appearance against the darker Martian terrain. Now on the ground, the science team is deploying the rover's full suite of instruments to analyze its composition and texture, seeking clues about Mars's ancient past.
Aug 281 min read
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