Hydrogen: The Most Abundant Element in the Universe
Hydrogen reigns supreme as the most abundant element in the universe, constituting a staggering 73% of all visible matter. Helium…
cosmology
What is The Cosmic Microwave Background (CMB, CBR)?
Most sky enthusiasts will have heard, at least once in their lives, of microwave background cosmic radiation, also known as…
What are the Cosmic Strings?
Cosmic strings are hypothetical 1-dimensional topological defects which may have formed during a symmetry-breaking phase transition in the early universe…
SHAPE OF THE UNIVERSE
The shape of the universe, is the local and global geometry of the universe. The local features of the geometry…
What is THE BIG BANG THEORY?
The Big Bang theory is a cosmological model of the observable universe from the earliest known periods through its subsequent…
EXPANSION OF THE UNIVERSE
We already told about this argument (video. podcast). now it’s time to sumrize and fix it in your mind using…
What is the COSMIC INFRARED BACKGROUND
Cosmic infrared background is infrared radiation caused by stellar dust. One of the most important questions about the CIB is…
Scoperto buco nero “impossibile” e antichissimo
Sembra impossibile ma esiste: è un gigantesco buco nero con una massa 12 miliardi di volte quella del Sole e…
Quanto è grande l’universo?
Che cosa rispondereste alla domanda posta da ragazzi di 11-14 anni? E’ difficile comprenderlo per i grandi, figuriamoci a quella…