Explore the Universe: Your Guide to Astronomy

The way in which all the planets in the solar system are affected by the gravitational force of the Sun is similar to the way the Moon and the Earth’s man-made satellites revolve around the Earth. This type of motion is referred to as central motion. Kepler’s laws govern this type of motion. Kepler’s first…

Over countless centuries, the gravitational pull compressed the fundamental components of Earth, the third planet from the Sun, which came into existence 4.6 billion years ago. Its formation remains an ongoing process. Presently, the inner structure of the planet and its delicate outer layer are in perpetual motion, causing alterations in the configuration of landmasses,…

Ever since the first star was observed in the sky, people have been wondering how many stars are actually out there (and they are still working on finding the answer to this question). Astronomers have made some calculations and determined that the naked eye can see around 4.5 thousand celestial bodies in the sky, and…

A well-known constellation in the night sky is Orion, which can be easily identified by its three aligned stars. In close proximity to Orion lies another constellation that rivals it in size and brightness – Gemini. Gemini is part of the zodiac constellations and boasts a distinctive and easily recognizable pattern. It consists of two…

Orienteering Typically, natural compasses are the clues and signs in nature that allow us to identify the directions of the horizon. It is not always convenient to have a map and compass on hand, and often situations arise unexpectedly where it is necessary to navigate on the ground. In these situations, natural compasses can come…

There is a common misconception that the sun’s rays reach the earth instantaneously. However, this is not the case. It is intriguing to explore the calculation of the time it takes for light to travel from the sun to the earth, as well as the reasons why this duration varies throughout the year. These facts…

July 24, 2023 / Instructions / Space speeds: how fast do you need to travel to depart from Earth, the solar system, and the galaxy? Despite the challenging state of domestic space exploration, there is a growing interest in space among people of all ages and educational backgrounds. Thanks to the efforts of private investors…

Practically all celestial bodies in the solar system undergo rotation around their central axis. This includes planets, moons, and even asteroids. However, is it possible that the Sun, being a star, also experiences rotation on its own axis? Yes, it does, and there are several unique aspects to this rotation. Firstly, the solar axis is…

An asterism is a group of stars that form a recognizable pattern within a constellation. These patterns are often used as guideposts for astronomers to locate specific areas of the sky. Here are some examples of well-known asterisms: The Big Dipper, which is part of the Ursa Major constellation, is one of the most famous…

Will an astronaut face gravitational forces while aboard a 10-ton rocket ascending vertically with a thrust force of 98 kN? During the launch, an astronaut inevitably encounters a state of overload. Unfortunately, the technology to ensure a smooth and straight ascent of the rocket has not been developed yet! (It is highly probable that the…

During the final month of winter, you still have the opportunity to witness the magnificent winter constellations, which are at their most visible during this time. Assuming the weather in February is favorable, you can gaze into the vast depths of space during the late evenings and nights. This month offers a chance to observe…

German Stepanovich Titov was born on September 11, 1935 in Verkhneye Zhilino, a small village located in the Altai Territory. Herman’s father, Stepan Pavlovich, worked as a teacher of Russian literature and language, but he was called to the front with the start of the Great Patriotic War. The Titov family had two children: Herman…

How long will it take for the Earth’s core to “run out of fuel”? Experts suggest that the temperature of the Earth’s core is even higher than the temperature of the Sun’s surface, reaching up to 10,000°C. Located beneath the Earth’s crust, there exists an extremely hot region with soaring temperatures – the Earth’s core….

When gazing up at the heavens, it is impossible for a person to accurately gauge the distance to the stars due to the lack of perspective in the sky. This is why ancient and medieval astronomers conceptualized the notion of a “sphere of fixed stars”. They imagined the stars as being affixed to a distant…

Man spent many millennia comprehending the fact that the Earth is not the center of the universe and is constantly in motion. Galileo Gallilei’s famous declaration “And yet it rotates!” has eternally cemented itself in history and has become a symbol of the era when scientists from various countries attempted to disprove the geocentric theory…

The original article on the Eagle Constellation contains numerous illustrations implemented with the help of JavaScript, which may not be visible on certain devices. However, this page provides all the images for your viewing pleasure. Schematic of Figure 1.Aql. The constellation Eagle is depicted in the image above. The Eagle constellation, also known as Aquila,…

Embarking on a trip to Mars is an incredibly intricate and potentially hazardous endeavor. Despite its seemingly straightforward nature, the achievement of conquering the Red Planet involves numerous intricacies and restrictions linked to the current state of space technology. However, the day is approaching when humans will have the incredible opportunity to explore the neighboring…

The amount of light energy gathered by a telescope is determined by the size of its objective lens. The larger the lens’s surface area, the better the telescope can observe faint luminous objects. When light passes through the objective lens of a refractor telescope, it is refracted and forms an image of the object in…

Comet Heyla-Boppa (C/1995 O1) is a comet with a long orbit that gained significant attention in the 20th century, becoming one of the brightest comets in recent decades. It remained visible to the naked eye for a remarkable period of 18 months, surpassing the previous record set by the Great Comet of 1811. [2] Discovered…

Measuring the immense expanse of space in kilometers or miles can be a challenging task. Scientists have been contemplating alternative units of measurement for vast distances. Light-years are often mentioned in science fiction literature and movies, but the concept may not be clear to everyone. Some individuals struggle to comprehend how it differs from a…