Dark matter: it sounds like a sinister creation in a science fiction novel, but it’s probably much more real than that. Most scientists believe that dark matter accounts for over 80% of all matter in the universe. Researchers don’t know exactly what is it and where it is, but they have theories.
Giordano Bruno was a monk on a mission. He believed life existed outside of the Earth, that the sun wasn’t the center of the Universe, and that the Virgin Mary wasn’t a virgin. The Church fried him for such beliefs, and now there’s a crater on the moon with his name on it.
Where did life on Earth originate? Did it form directly on our world billions of years ago? Or instead, was it an accidental gift from amongst the stars, reaching our planet on star dust?
Sometimes, ideas hold great power and Claudius Ptolemy’s second century treatise on astronomy was a big hit with civilization for over a thousand years. It was complex, but it solved a lot of problems. As science matured, civilization found it could do better.
Matter in space ranges in size from subatomic particles to galaxy superclusters. In fact, there are larger objects than those—complexes of superclusters called walls or sheets. These structures, as much as one billion light-years across, resemble fine gauze. They are the filaments of space.
Black holes are a dynamic structure within the confines of the universe. To understand the different parts, one must look at each one and discover its place within the whole. By defining a black hole’s existence, the true nature of the universe can begin to be revealed.
Gravitational lensing is a phenomenon that is predicted by Einstein’s General Theory of Relativity. In this article, we will discuss the theory of gravitational lensing, the various types of gravitational lensing and their uses and the various sources of this phenomenon and how they are found.
The Planetesimal theory is a theory of planet formation. We will explore what planetesimals are, what the theory states, the various factors that are taken into account, such as turbulence, what binary planetesimals are and the current state of planetesimals
The Hubble Space Telescope has imaged the farthest galaxy yet seen. It is 13.2 billion light years away. That means it is 13.2 billion years old. It was being formed less than 500 million years after the Big Bang.
According to current cosmological theories, the Universe has been expanding since the instant of the Big Bang. But what causes this expansion, and how long will it last? This article gives a brief explanation of expanding Universe theory, from the beginning of time to the far distant future.