Supernovae
Colliding Neutron Stars Could Help Measure the Expansion of the Universe
A new study presents a novel and independent method for measuring cosmic expansion using kilonova
Astronomers Have Been Watching a Supernova’s Debris Cloud Expand for Decades with Hubble
Twenty thousand years ago, a star in the constellation Cygnus went supernova. Like all supernovae, the explosion released a staggering…
Supernovae Struck the Earth 3 Million and 7 Million Years Ago
A recent study examines how the Earth was hit by blasts from supernovae (plural form of supernova (SN)) that occurred…
This 3D Simulation of a Supernova Needed 5 Million Hours of Supercomputing
When the largest stars in the Universe run out of fuel, they detonate as supernovae, collapsing inward and leaving behind…
Astronomers Have a New Way to Measure the Expansion of the Universe
A new method of measuring cosmic expansion uses multiple observations of a supernova in a lensed galaxy.
Hypervelocity Stars Teach us About Black Holes and Supernovae
A new study shows how hypervelocity stars could teach us more about the most powerful and mysterious phenomena in the…
The Dark Energy Camera Captures the Remains of an Ancient Supernova
The first written record of a supernova comes from Chinese astrologers in the year 185. Those records say a 'guest…
How Many Stars Formed Together With the Sun in Our Stellar Nebula?
Even though our Sun is now a solitary star, it still has siblings somewhere in the Milky Way. Stars form…
Colliding Neutron Stars can Generate Long Gamma-ray Bursts
Gamma-Ray Bursts (GRBs) are the most energetic recurring events in the Universe. Only the Big Bang was more energetic, and…
Hubble saw Multiple Light Echoes Reflecting off Rings of Dust From a Supernova Explosion
Using images from Hubble, an international team of astronomers created a video that shows the evolution of a supernova and…