What is an X-ray pulsar?
X-ray pulsars are a class of astronomical objects that are X-ray sources displaying strict periodic variations in X-ray intensity. The…
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What Is ADHD?
Attention Deficit Hyperactivity Disorder (ADHD) defines a set of behaviors involving differences in focus, movement, and impulse control. It often…
What is the Quantum entanglement?
Quantum entanglement represents an intriguing physical anomaly that arises when a pair or cluster of particles are generated, interact, or…
What is Quantum Tunnelling?
Quantum tunnelling is the quantum mechanical phenomenon where a wavefunction can propagate through a potential barrier. The effect was predicted…
What is A gravitational lens?
A gravitational lens is a distribution of matter (such as a cluster of galaxies) between a distant light source and…
A Supernova Explosion And The Evolution Of A Supernova Remnant
Supernova remnants (SNR) are one of the four categories of nebulae that may exist in a Galaxy (the other three…
Star Formation – Part II
On the first part we saw some basic historic concepts about star formation (i.e. Jeans mass). We then went through…
What is the Planck constant
The Planck constant, or Planck’s constant, is the quantum of electromagnetic action that relates a photon’s energy to its frequency….
Star Formation – Part I
In the introduction of this section, we saw star formation in a nutshell. Thus, the crucial details of the process…
All About the Stars – Part 2
In the previous post, we entered to the world of stars. But it was mentioned that this was just an…