Galaxy mergers
Galaxy mergers can occur when two (or more) galaxies collide. They are the most violent type of galaxy interaction. The…
Astrophysics
The biggest unanswered questions about dark matter
In the 1930s, a Swiss astronomer named Fritz Zwicky noticed that galaxies in a distant cluster were orbiting one another…
What is dark matter?
Dark matter is a form of matter thought to account for approximately 85% of the matter in the universe and…
Sun Theory Announced in 2004 Confirmed
Seventeen years ago, astrophysicist J. Martin Laming put forward a theory about the sun: that the chemical composition of the faintest…
GK Persei. a bright nova
A nova (latin for new) is the high and rapid increase in the brightness of a star. This term is…
Neutron Stars: The Densest Objects in the Universe
A neutron star is a cosmic object that forms after a supernova explosion. It is a degenerate star from neutron…
What is the Dark Energy?
Dark energy is an unknown form of energy that affects the universe on the largest scales. The simplest explanation for…
Could a human enter a black hole to study it?
To solve the mysteries of black holes, a human should just venture into one. However, there is a rather complicated…
Astronomers Find Monster Black Hole With 6 Galaxies Trapped in Its Gravitational Web
Astronomers have discovered six galaxies ensnared in the cosmic “spider’s web” Of a supermassive black hole soon after the Big…
For The First Time, We’ve Detected a ‘Ghost Particle’ Coming From a Shredded Star
A star completely torn apart when it ventured too close to a black hole has given science a rare gift….