Explore the Universe: Your Guide to Astronomy

Asking about the color of the moon may seem peculiar. It is commonly perceived as yellow, and when observed through a telescope, it appears mostly gray, with certain areas appearing darker or lighter. This notion is supported by photographs. However, the reality is not as straightforward. When examining photographs of the moon in its natural…

It is estimated that the mass of the dark companion at the center of mass should be around 50 years. However, this statement was met with doubt as the dark companion couldn’t be observed and its mass was expected to be quite large, similar to the mass of Sirius. In the case of red giants…

Where on Earth can we find a location where the duration of day and night is always the same, and the Sun reaches its highest point twice a year – during the spring and fall equinoxes? I have grown accustomed to the shorter daylight hours and longer periods of darkness during the winter months, but…

Becoming an astronaut is no easy task. While it is commonly known that studying well and staying fit are essential, there is more to it than meets the eye. Real astronauts haven’t always been the picture-perfect individuals we imagine them to be. So, how can you stand out and make your dreams of space a…

During a scorching summer day, when the sky is clear and we are drained from the extreme heat, we frequently hear the phrase “the sun is at its zenith”. In our interpretation, it signifies that the celestial body is at its peak position and intensely heats up, almost as if burning the earth. Let’s venture…

1. What was the initial scientifically valid cosmological model of the universe proposed by Aristotle? 2. Can you explain the new cosmological model? 3. Who is responsible for proposing this new cosmological model? 4. In which scientific field does cosmology fall under? 6. How do scientists test theoretical models that describe the overall properties of…

The amount of energy that our planet receives from the Sun is only a small portion of the total energy emitted by the star, but it is significantly greater than all the energy generated artificially on Earth. The sun completes one revolution around its axis in approximately 25.4 of our regular twenty-four-hour days. The estimated…

The concept of relativity is truly captivating with its contradictory nature. We are all familiar with the famous examples involving twins and the possibility of fitting a long airplane into a small box. Nowadays, even high school graduates are well-versed in these classic enigmas, and even physics students believe that they have unraveled all the…

  What is the color of stars? The colors of stars can actually vary a lot. Typically, we can see white and red stars in the sky. Contrary to popular belief that stars are white, they actually come in different colors such as blue, yellow, orange, and red. The shimmering of stars in the celestial…

Pluto, a celestial body in our solar system, was first spotted in 1930 by Clyde Tombaugh, an American astronomer. Since then, scientists have been able to identify several satellites orbiting around Pluto, which will be the main focus of this article. Characteristics of the celestial body Pluto possesses the attributes of a stellar type with…

Gravitational speed refers to the rate at which gravitational influences, perturbations, and waves propagate. In quantum theories of gravity, the velocity of gravity is understood as the speed at which gravitons, the smallest particles (quanta) of the gravitational field, travel. Gravitational speed within physical theories Within Newton’s theory of gravitation, the speed of gravity is…

Astronomers recently unveiled a fresh and remarkably detailed snapshot of the central area of the Milky Way galaxy. This captivating image spans an impressive distance of approximately 600 light-years. Discover the significance behind this extraordinary image for scientists and researchers. What is depicted in the new image? The new image showcases the Arca cluster, which…

Taurus is one of the most star-rich constellations among the zodiacal constellations. Situated in the Northern Hemisphere, Taurus is most visible during the months of November to January. The original bull in the celestial sky It is incredible to think that without any optical instruments, one can observe a whopping 216 stars in this constellation….

Astrometry serves as the foundation for astronomical observations and the measurement of coordinates and time. The primary objective of astrometry is to establish a reference frame, which corresponds to the inertial reference frame described in Newton’s first law. Throughout history, astronomers have compiled star catalogs to achieve this goal. These catalogs have enabled the discovery…

Watch the Live Stream of the Spacewalk on November 17, 2022 (video) Don’t miss the chance to witness the incredible spacewalk happening on November 17, 2022, with Oleg Artemyev as the main astronaut. Tune in to the live broadcast to experience the thrill and excitement of this extraordinary event. Watch the live stream of the…

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Most people are aware that Saturn, the sixth planet from the Sun, is famous for its magnificent rings. However, not everyone is aware of the actual color of Saturn itself. Even with a basic telescope or a pair of astronomical binoculars, one can observe that Saturn displays a wide range of hues, ranging from pale…

Saved for later The vast expanse of space is not just an empty void, devoid of life and sound. Within its depths lie hidden extraordinary and astounding entities, which remain unknown to humankind. However, there are certain discoveries that scientists have made, some of which seem truly implausible. How about a colossal cloud of alcohol…

There is perhaps no constellation in the northern hemisphere sky that is more well-known than the Little Bear. It is the one that children often inquire about and even attempt to spot in the night sky. Why has it garnered such special attention, considering that the Little Dipper appears rather unassuming? Primarily because it is…

The nearest star to Earth is Proxima Centauri. In the past and future, there have been and will be other stars that are close to Earth. There is a list of stars that are closest to Earth. What star is the closest to Earth? Many people immediately think of Alpha Centauri, Sirius, or even Polaris….