Tag: stellar explosions
-
SN 2024gy: Backing the Delayed-Detonation Type Ia Supernova Model
SN 2024gy: A Key Case for the Delayed-Detonation Type Ia Supernova Model In a collaborative effort spanning Chinese observatories and international partners, researchers have carried out detailed observations of SN 2024gy, a high-velocity Type Ia supernova (SN Ia). Their work strengthens the case for the delayed-detonation (DDT) scenario, a leading model that explains how exploding…
-
NASA Watches Kepler’s Supernova Remnant Expand Over 25 Years with Chandra
Kepler’s Supernova Remnant: A Historic Explosion in the Milky Way In 1604, astronomers observed a brilliant new star in the sky that would become known as Kepler’s supernova, the Milky Way’s most famous naked-eye stellar explosion. Today, NASA’s Chandra X-ray Observatory offers a long-awaited, long-running look at the remnant as it expands, giving scientists a…
-
Mysterious Blue Cosmic Explosions: Black Holes Shredding Stars and a New Mystery Unfolding
What Are LFBOTs and Why They Shine Blue Astronomers are studying a rare, ultra-bright class of cosmic events known as Luminous Fast Blue Optical Transients (LFBOTs). These explosions stand out because they explode with incredible energy in a short time and emit a distinctly blue glow, unlike most supernovae we have observed. The bright blue…
-
Nearby Supernova Hint from Pacific Be-10 Spike: Could a Stellar Explosion Reach Earth 10 Million Years Ago?
New Clues from the Deep Sea: A Be-10 Spike That Sparks Cosmic Questions A mysterious spike in the radioactive isotope beryllium-10 has researchers peering toward the stars. Found in a Pacific Ocean seabed deposit, the anomaly dates back roughly 10 million years and could be the remnant signature of a nearby supernova. Beryllium-10 forms when…