Tag

Stellar Explosion

All articles tagged with #stellar explosion

science28 days ago•2 min saved

Scientists baffled by recurrent star explosion

Scientists are puzzled by iPTF14hls, a star that has repeatedly exploded over decades, defying current supernova models. The star, located 509 million light-years away, has exploded at least six times, with debris expanding unusually slowly and retaining hydrogen, which contradicts existing theories. Various hypotheses, including antimatter reactions and 'zombie star' scenarios, are being considered as explanations, but no consensus has been reached.

via Boing Boing|

#astronomy #science #space

science1 month ago•3 min saved

Scientists Unveil First-Ever Shape of a Supernova in Space

Scientists captured the first detailed shape of a supernova explosion, SN 2024ggi, revealing it was not perfectly spherical but stretched along one axis, challenging previous models of stellar death. Using the VLT and spectropolarimetry, they observed the initial shock wave's directional nature, providing new insights into how massive stars explode and die.

via Live Science|

#astronomy #science #sn-2024ggi

science2 months ago•3 min saved

Scientists Capture First Detailed Views of a Supernova's Initial Explosion

Scientists have for the first time observed the very early stages of a supernova, capturing a distinctive olive-like shape of a star explosion in galaxy NGC 3621, which provides new insights into the mechanisms of such cosmic events.

via Reuters|

#early-observation #european-southern-observatory #science

science2 months ago•7 min saved

Scientists Capture First Detailed Views of a Supernova's Birth and Explosion

Astronomers using ESO’s Very Large Telescope captured the earliest moments of a supernova explosion, SN 2024ggi, revealing its olive-like shape and providing new insights into how massive stars end their lives, marking a historic first in observing a supernova's initial breakout shape.

via SciTechDaily|

#astronomy #eso #science

science4 months ago•4 min saved

Scientists Encounter Mysterious Gamma-Ray Burst Outside Our Galaxy

Scientists detected an unprecedented gamma ray burst, GRB 250702B, which repeated multiple times over a day and appeared to originate outside our galaxy, challenging existing theories about stellar explosions and black holes, with no current explanation fully accounting for its unique properties.

via Futurism|

#black-hole #extragalactic #gamma-ray-burst

science4 months ago•5 min saved

Astronomers Discover Unprecedented Stripped-Down Supernova with Unique Composition

NASA's Chandra X-ray Observatory revealed that a star, Cassiopeia A, experienced violent internal upheaval just hours before its explosion, with layers of silicon and neon breaking into each other, which may have influenced the shape and dynamics of the supernova remnant and its explosion mechanism.

via NASA (.gov)|

#cassiopeia-a #chandra #nasa

science5 months ago•8 min saved

AI-Driven Discovery Unveils Unusual Supernova and Black Hole Interaction

Scientists used a Spotify-like AI to detect a new type of supernova, SN 2023zkd, likely caused by a star attempting to consume a black hole, providing new insights into stellar interactions and explosion mechanisms.

via Live Science|

#ai-discovery #astronomy #black-hole

science5 months ago•3 min saved

Black Hole Attacks Trigger Unprecedented Supernovae in Megastars

AI-assisted observations have potentially identified the first case of a star exploding while interacting with a black hole, revealing a new class of stellar explosions and highlighting AI's role in discovering rare cosmic events.

via Space|

#artificial-intelligence #astronomy #black-hole

science6 months ago•4 min saved

Citizen Scientists Discover Rare Exploding Star in Breakthrough Find

Astronomers and citizen scientists discovered a rare exploding star, GOTO0650, a cataclysmic variable in its final 'period bouncer' stage, thanks to rapid public response and collaborative observations, highlighting the valuable role of citizen science in astrophysics.

via Space|

#astronomy #cataclysmic-variable-star #citizen-science

science6 months ago•2 min saved

Bright Nova Illuminates Night Sky Visible Across North America

A new nova, V462 Lupi, has appeared in the night sky and is now visible to the naked eye, brightening over 3 million times due to a stellar explosion involving a white dwarf and a companion star in the Lupus constellation, offering skywatchers a rare and dramatic celestial event.

via IFLScience|

#astronomy #night-sky #nova

science6 months ago•4 min saved

Bright Nova and Cosmic Explosion Visible from North America and UAE

Astronomers have detected a bright new classical nova, V462 Lupi, in the Lupus constellation, which is now visible to the naked eye from parts of North America, following a stellar explosion that occurred in the Milky Way.

via Live Science|

#lupus-constellation #naked-eye-visibility #nova

science7 months ago•1 min saved

Scientists Uncover the 600-Year-Old Mystery of the Disappearing Star

Chinese astronomers in 1408 observed a nova, a dying star explosion, near the Milky Way, providing detailed historical records that confirm the event as a nova rather than a comet or meteor, and helping modern scientists narrow down its position.

via South China Morning Post|

#1408 #astronomy #chinese-history

science7 months ago•3 min saved

SN 2024aecx Identified as Type IIb Supernova

Astronomers observed SN 2024aecx, a recently detected supernova in galaxy NGC 3521, and concluded it is a Type IIb supernova based on its spectral and light curve features, including a double-peaked light curve and early hydrogen signatures, making it one of the brightest in its class.

via Phys.org|

#astronomy #science #sn-2024aecx

astronomy1 year ago•2 min saved

"Real-Time Observation: Birth of Black Hole from Epic Supernova"

Astronomers captured real-time images of a distant star going supernova, potentially leading to the birth of a black hole, in the galaxy Messier 101. The team's swift response allowed them to observe the supernova using the Hubble Space Telescope and the Keck Observatory, providing valuable data for analysis. Calculations suggest that the missing mass from the explosion likely ended up in a black hole, a rare and significant finding in the study of cosmic events.

via Gizmodo|

#astronomers #astronomy #black-hole

astronomy1 year ago•4 min saved

"Rare Nova Explosion: How to See the 'New' Star in the Sky"

T Coronae Borealis, a binary star system, is set to emit a burst of energy visible to the naked eye in the coming months, occurring about every 80 years as the smaller white dwarf steals matter from the red giant, leading to a fusion reaction. This recurring nova process is expected to take place between now and September in the constellation Corona Borealis.

via KCRA Sacramento|

#astronomy #binary-star-system #fusion-reaction