Experience the wonders of space with our comprehensive astronomy website. From stunning images captured by telescopes to informative articles on celestial phenomena, join us as we unravel the mysteries of our vast universe.
On the 15th of February, 2013, at 9:20 AM local time, a meteor entered the atmosphere over the Southern Urals. Initially, a brilliant flash blinded all observers, followed by the sighting of a streak across the sky. However, the most significant impact was felt through the explosive shockwave. The largest fragment of this meteorite fell…
The cosmos is teeming with countless galaxies. It has been estimated that the observable universe is home to a staggering two trillion galaxies. Among this vast array, the Andromeda galaxy holds the distinction of being the nearest one to our own. It resides at a distance of roughly 2.5 million light-years from us. Given its…
If you have the chance to gaze at the pitch-black sky, then you possess an extraordinary collection of stars. Without any equipment, one can observe approximately 2500 stars in the Milky Way, and with the aid of binoculars or a telescope, this number can increase to 5800-8000. However, this accounts for only a fraction of…
The measurement of the distance to galaxies is a fascinating topic in astronomy. One common method used by scientists is the concept of light-years, which is a unit of measurement based on the distance that light travels in one year. The Milky Way Galaxy, for example, is approximately 1,000 light-years thick and has a diameter…
The celestial event, which will also be visible to the naked eye, is not a genuine alignment of the planets. Unlike last summer, when Mercury, Venus, Mars, Jupiter, and Saturn formed a straight line after an 18-year hiatus, this time the planets will not be positioned in a direct line from the perspective of the…
Amateur stargazers mostly utilize two conventional forms of telescopes for their observations. These include refractors, which use lenses (or objective glasses, as they are often referred to) to construct the image, and reflectors, which employ a mirror for this purpose. Occasionally, catadioptric systems, which are a combination of multiple lenses and mirrors, are utilized to…
The occurrence of the Chelyabinsk meteorite on February 15, 2013, along with the subsequent meteor shower, raised questions regarding our limited knowledge about meteorites. The loud noise and accompanying light effects left people perplexed, as they wondered about the origin of these phenomena. The unexpected fallout of stones from the sky, sometimes even taking the…
The moon, our planet’s second largest celestial body, has been a subject of observation dating back to ancient times. The unaided eye can perceive the unevenness of the Earth’s natural satellite’s surface, however, it was not until the invention of the telescope that the existence of craters on the Moon was revealed. The Definition of…
When stargazing in the southern hemisphere, one can easily spot the Southern Cross, which is the most distinctive asterism in this region. Consisting of five stars that form the shape of a cross, this constellation is instantly recognizable and serves as the defining feature of the Southern Cross constellation, the smallest constellation in the night…
Dark matter is a type of matter that does not participate in electromagnetic interactions, meaning it does not emit or reflect light. It is a fundamental component of the Universe and exerts gravitational forces that influence the motion of stars within galaxies, including our own. Approximately 22% of all matter in the universe is believed…
Perseus constellation is an ancient and captivating constellation that offers a plethora of intriguing and easily observable celestial objects. It can be easily spotted in the sky throughout the year, making it a popular choice for stargazers. With its prime visibility in the fall season, Perseus is often referred to as a fall constellation. Ptolemy,…
Approximately 5000 years ago, the night sky was illuminated by a dazzling disk, shining as brightly as our own Sun. The inhabitants of a nearby city were overcome with fear and rushed to the temples seeking refuge. The priests, using their divination skills, predicted impending misfortune and divine retribution that would befall the sinners unless…
2,500 years ago, the Greeks hypothesized that the Earth is not a flat disk. Aristotle later presented compelling evidence to support this theory. During the time of Homer and for many centuries afterwards, the Greeks held the belief that the Earth was flat, taking on the shape of a disk. Notably, Thales, Herodotus, Anaxagoras, and…
According to Obi-Wan Kenobi, the force is responsible for holding the galaxy together. The same principle can be applied to gravity. In reality, gravity enables us to walk on the surface of the Earth, allows the Earth to orbit around the Sun, and permits the Sun to orbit around the supermassive black hole located at…
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…
The cosmos is a complete system in which all objects and structures coexist in accordance with specific principles. Only a fraction of the immense cosmic expanse is visible to the naked eye in the form of stars. The universe encompasses a vast realm of galaxies, quasars, as well as dark matter and energy. It encompasses…
Was it the theory of relativity or the law of universal gravitation? It must be noted that Einstein initially did not show much enthusiasm for Minkowski’s geometric idea: mathematicians often play with the laws of physics… However, his attitude changed when he encountered a new problem that arose from his own success. The theory of…
As ancient humans lifted their heads and gazed up at the sky, they undoubtedly pondered the nature of the stationary “fireflies” that dotted the celestial expanse. By observing these lights, people began to associate certain natural phenomena, such as the changing of seasons, with celestial events, attributing magical properties to the latter. For instance, in…
The concept of the movement of the hour hands appears logical and comprehensible, as we have been exposed to various clock faces since our early years, without ever questioning the rationale behind their direction or the functioning of clocks in general. It may appear that the decision to move the clock’s hands was possibly based…
The planets’ linear and angular velocities around the Sun increase as they get closer to it. The sidereal period refers to the time it takes for the planets to complete one revolution around the Sun relative to the stars. The Earth’s sidereal year is the time it takes for the Earth to complete one orbit…