This star survived its own supernova and shined even brighter
Rich with detail, the spiral galaxy NGC 1309 shines in this NASA/ESA Hubble Space Telescope Picture of the Week. NGC 1309 is situated about 100 million light-years away in the…
Astronomers Capture First-Ever Image of a Dead Star That Exploded Twice in Rare Supernova Event
For the first time, a team of astronomers has captured a clear image of a white dwarf star that exploded not just once, but twice, as a Type Ia supernova…
Astronomers Discover Most Powerful Cosmic Explosions Since the Big Bang
Astronomers have seen the most energetic cosmic explosions yet, a new class of eruptions termed “extreme nuclear transients” (ENTs). These rare events occur when stars at least three times more massive than…
Astronomers Spot Nearly Perfect Supernova Remnant of Unknown Size and Distance
Glowing faintly on the Milky Way’s outskirts, astronomers have found a nearly perfect spherical relic of a supernova, challenging accepted knowledge of stellar explosions. Apart from its terrible symmetry, the…
T Corona Borealis May Erupt Soon: Rare Nova Could Be Visible to Naked Eye
T Corona Borealis is a binary star system in the Northern Crown constellation which is being monitored closely by astronomers worldwide for signs of a rare stellar eruption. The system…
James Webb Space Telescope Detects Supernova From 11.4 Billion Years Ago
Astronomers, using the James Webb Space Telescope (JWST), have identified one of the oldest supernovas ever recorded, believed to have occurred approximately 11.4 billion years ago. This stellar explosion, designated…
Fresh wind blows from historical supernova
A mysterious remnant from a rare type of supernova recorded in 1181 has been explained for the first time. Two white dwarf stars collided, creating a temporary “guest star,” now…
Supernova encore: Second lensed supernova in a distant galaxy
In November 2023, NASA’s James Webb Space Telescope observed a massive cluster of galaxies named MACS J0138.0-2155. Through an effect called gravitational lensing, first predicted by Albert Einstein, a distant…