During a pleasant summer evening, when the shimmering gray ribbon of the Milky Way stretches across the sky from one end to another, a sight awaits you high above, nearly at the zenith—an extraordinary celestial creature, the Swan constellation. It is arguably the most iconic among the 88 constellations that adorn the heavens. Observing the…

When it comes to telescopes, the debate between refractors and reflectors is a common one. Both types of telescopes serve a similar purpose and operate in a similar manner. A refractor telescope, for example, uses a front lens, known as the objective, to collect and focus incoming light. This light is then refracted through multiple…

Astronomy is a scientific discipline that encompasses various fields of study, including but not limited to: Astrometry; Celestial mechanics; Theoretical Astronomy; Astrophysics; Stellar Astronomy; Cosmochemistry; Cosmogony; Cosmology. Sections related to the study of space objects’ movement in astronomy Astrometry Astrometry is responsible for examining the geometry and motion of celestial and cosmic bodies. The purpose…

There are numerous intriguing theories surrounding the absence of a visible crater for the enigmatic Tunguska meteorite, which has puzzled scientists for over a hundred years. Let’s explore some of the most fascinating hypotheses. In the early hours of June 30, 1908, a tremendous crash resonated through Siberia as an unknown object made impact. The…

On June 9, we celebrate the anniversary of Johann Halle, an astronomer from Germany who made the remarkable discovery of Neptune during the 1800s. Joining forces with the editors of the renowned scientific website “Attic,” let’s recall our knowledge about this fascinating planet, delve into the mystery behind its striking blue hue, and indulge in…

Recently, I’ve been experiencing a recurring dream with increasing frequency. It feels as though I am already awake, opening the window and soaring into the boundless sky. I ascend into outer space, clad in a delicate nightgown, effortlessly catching meteorites with my bare hands and gliding past the celestial bodies. Upon waking, I am overcome…

Fig. 7.2 illustrates the Earth’s orbit around the Sun, with an average speed of approximately 30 km/sec. Furthermore, the Earth undergoes rotation on its own axis, completing one revolution per day. The Earth is encompassed by an atmosphere that extends beyond 1000 km into space, providing favorable conditions for life to thrive on its surface,…

An astrobiologist has put forward a proposal to abandon the concept of colonizing exoplanets and instead construct a mega-satellite in the orbit of Ceres. Let’s explore the possibilities that scientists are offering for the future of humanity. Discover “Hitech” in The Location of Ceres What are the circumstances on the dwarf planet? There are visible…

The enigmatic nature of outer space has always captivated the human imagination. Since ancient times, astronomers have sought to unveil the mysteries of the universe and discover the closest star to our own. Through the invention of various instruments, they observed the twinkling lights in the night sky. With modern scientific advancements, we now have…

If you have ever heard the phrase in a sci-fi action movie, like “Tatooine is twenty light years“, you might have had some legitimate questions. Here are a few of them that I will address: So, what exactly is a light-year? How long would it take a spaceship to travel a light-year from Earth? Today,…

The planet Uranus was discovered thanks to Herschel, who used his own telescope to observe the sky. Discovery history Before its discovery, Uranus was mistakenly identified as a star. However, the English astronomer noticed a celestial body that moved differently from the stationary stars and had a distinct color. This led to the discovery of…

It’s important to understand that our galaxy is not the only one of its kind in terms of its formation. In fact, there are many others that are similar to ours, organized into specific groups. The Milky Way is a part of the Local Group, which consists of 54 galaxies and is a part of…

The amount of energy our planet receives from the sun is only a fraction of the energy emitted by the star, but it is significantly greater than the energy produced artificially on Earth. The sun completes one revolution around its axis in approximately 25.4 of our standard twenty-four-hour days. The distance from our planet to…

According to The Guardian, astronomers searching for extraterrestrial radio signals have picked up an “interesting signal” from Proxima Centauri, the nearest star system to our Sun. Here, we provide further details on the findings made by scientists. Discover “Hitech” in Who is Proxima Centauri? Proxima Centauri, a red dwarf star, is part of the Alpha…

The closest star to the Sun was discovered by Robert Innes in 1915 and given the name Proxima Centauri. Proxima Centauri is a red dwarf that can be found in the Alpha Centauri system. Proxima’s Profile The diameter of this star is seven times smaller than the diameter of the sun, and the same applies…

The lithosphere, which is composed of the upper part of the mantle and the Earth’s crust, serves as the solid shell of planet Earth. Comprising stable platforms and moving fold belts, the lithosphere provides complete coverage over the Earth’s surface, shielding it from the extreme temperatures emanating from the radiant Earth’s core. While the thickness…

A supernova is essentially an explosion of a star and is the most powerful event that can be witnessed in outer space. Where do supernova remnants appear? Supernovae are often visible in other galaxies. However, in our own Milky Way, it is a rare occurrence to witness a supernova due to the obstruction caused by…

The field of astronomy has divided the entire expanse of the sky into distinct regions known as constellations. Each of these sections contains numerous stars, ranging from a few dozen to several hundred. In ancient times, these constellations were simplified by assigning them different shapes, resulting in drawings that vaguely resembled earthly creatures. This gave…

The origin of the universe is believed to be explained by the Big Bang theory. This concept emerged from the observation that galaxies are rapidly moving away from each other in every direction, suggesting that they were propelled by a powerful primordial explosion. The Definition of the Big Bang The Big Bang theory is the…

History of Astronomy In the late 16th century, there was a significant development in the field of astronomy. It involved a clash between two different models of our solar system: the geocentric system proposed by Ptolemy, where the Earth is considered the center of rotation for all celestial bodies, and the heliocentric system introduced by…