The movement of the sun

We are all aware of the fact that the Sun revolves around the Earth. This leads us to question whether the Sun itself also revolves, and if it does, what does it revolve around? The answer to this query was only obtained by astronomers in the 20th century. Our star is indeed in motion, and…

Read More

What is the velocity of gravity?

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…

Read More

Which planets possess atmospheres?

Announcements regarding the potential discovery of habitable planets do not generate much excitement. Planets with atmospheres are quite common, with over two thousand already identified, and most of them bear striking similarities to our own Earth. However, when it comes to finding planets that closely resemble Earth, we are limited to only a handful. Nevertheless,…

Read More

What is the biggest cosmos?

The largest known entity in the universe measures 10 billion light years across. Scientists have identified a colossal assembly of galaxies known as the Great Wall of Hercules – Northern Crown as the most expansive structure in the universe. This colossal supercluster is so vast that it takes light approximately 10 billion years to traverse…

Read More

Current Occupants of Space

The previous record of 14 individuals in space was recently surpassed. This includes seven people aboard the International Space Station (ISS), three aboard the Shenzhou-12 spacecraft, and four aboard the Crew Dragon. The new record was set on September 16, 2021. In 1995, the previous record of 13 people was achieved, with six on the…

Read More

What is a nebula

Nebulae are vast accumulations of dust and gases in the vastness of outer space that serve as a fertile environment for the emergence of fresh stars. Certain nebulae are the result of a star’s demise. Once they have completed their life cycle, certain stars go supernova, expelling enormous clouds of dust and gases into the…

Read More