INSIDE SCIENCE

1. Our time is determined by the rotation of the earth. The earth completes one Revolution around it in about 24 hours. This means that it has 84,400 seconds in 24 hours.  But recently scientists have suggested that the Earth’s speed is slightly faster than normal. Because of this our day is ending a little early. Scientists now have such accurate clocks that they can detect a difference of a thousandth of a second. It is now assumed that the earth has been rotating a bit faster on its axis in the last 50 years and has decreased by 0.05 milliseconds in an average day. Of course, it doesn't seem like much. In addition, July 19,  2020 saw a decrease of 1.44602 millisecond in 24 hours in the day. 2. According to scientists, the maximum temperature in this universe can be 1.42×10 32 Celsius. That's 142 nonillion degrees Celsius. This means that this higher temperature can never be achieved. This is also called Planck temperature. There can be no higher temperature in this univer...

Every day new discoveries and objects discovered in space. One of these is the Nebula. Nebulas are a very special part of creation. Today we are on this Earth only because of the Nebula. Our star, the earth and whatever is part of our solar system would once have been in the nebula only in the form of gas and dust. All the stars and planets are formed in the nebula. By the way, the nebulas itself look like a different and beautiful. Because the irregular expanding gas in it gives it a beautiful shape. It can be of many types. Like Emission nebula, they are the most colourful because they contain ionized gases. Due to this they emit light of different wavelengths. There are other similar nebulae, such as Planetary Nebula, the reflection nebula, the dark nebula and supernova Remnants. The Hubble Space Telescope was launched on April, 24 1990 and has performed millions of observations in interstellar space and is doing. It doesn’t know how much beautiful nebula it has captured. Whos...

We all must have heard about star clusters. A group of stars is known as a cluster. Clusters can be of two types open cluster, and globular cluster. Some time ago a planet named Methuselah was considered to be the oldest planet in the universe. In fact, the planet was also found as a globularcluster . Omega Centauri is located at a distance of 17,090 light years from us. This cluster is the most massive cluster ever discovered. In a globular cluster, stars are very close to each other and are tightly bound by Gravity.  All the stars revolve around the galactic core. But Omega Centauri is considered to be the most massive cluster ever. It is estimated to have more than 10 million stars in it. This cluster is so large that its diameter is about 150 light years. It is also known as NGC 5139 or Cald well 80 . This is the largest massive cluster ever discovered in the Milky Way galaxy. This cluster can be easily seen from the earth with the naked eyes.  All the stars in it are...

1. Today we are well aware those Black holes are the objects that have a greater gravity than any other object in the universe. But do you know why they are known by the word “ Black hole ”? Of course, black holes were predicted a hundred years ago. But the word black hole was first used by the American astronomers John Wheeler In 1967 . 2. The temperature of the accretion disc outside a blackhole can reach millions of degree Celsius. But you may surprise to know that studies have shown that the central temperature of a supermassive black hole can be up to 1.4×10 -14 kelvin. This is an extremely freezing temperature. This temperature is very close to absolute zero but not equal to absolute zero. In fact the absolute zero temperature is -273 0 15 Celsius. At this temperature, the movement of atoms stops completely. If we talk about the coldest place, it is NASA’s Cold Atom Laboratory with a temperature of -273 degree Celsius. This is also exactly one degree less than absolute ze...

The stars are a very important part of this universe. No Universe can be imagined without them. It is because of their light that we are able to know this huge Cosmos. There is much type of stars. It depends on the elements inside them. Everyone must have heard about the Orion Constellation. This constellation has been important since ancient times. This constellation and the stars in it are quite popular.  In fact, it was associated with aliens.  Today we will talk about Rigel, One of these famous stars.  You can easily see this star without the aid of a telescope. Rigel is a very bright star. Its Apparent magnitude is +0.13 From Earth. This makes it the seventh brightest star in the night sky. Its Distance from Earth is about eight hundred and sixty light years. Rigel is a blue super giant and is quite a massive star. In fact, the brightest stars in the universe are the blue stars. They are much brighter and more massive than the sun. These stars consume the hydrogen...

1. The Largest Cosmic Void Do you know about the largest cosmic void in the universe? At the moment it is KBC void. Cosmic voids are places that are completely empty or have a very few galaxies. There is only darkness in them which can extend to millions of light years. Scientists say they may have been formed shortly after the big bang. It is generally believed that matter spread evenly in all directions after the Big Bang. But that probably didn’t happen. It accumulated in large numbers in many places, and only a small amount in other places. Or not at all. Scientists attribute this to baryon acoustic oscillation (BAO). Which may be caused in considerable fluctuation in the density of matter and its speed?     These vibrations can change the state of the matter. Due to which matter did not accumulate much in some places. In addition, dark energy later expanded these cosmic words to many more. The KBC void is the largest cosmic void ever discovered. It was a discovered...

If one look at space, at first glance it looks very calm but looking at in another light, we see that it is also in turmoil. The Neil Gehrels Swift satellite was launched in 2004. The task of this Swift satellite released by NASA is to detect a Gamma ray burst , the most powerful and energetic event in the universe. Gamma ray burst EMIT as much energy in just 2 seconds as the sun emits throughout its lifetime.  All this energy came out in the form of a jet with the speed of light. This satellite has detected a lot of Gamma ray bursts so far. This could be due to the collision of two neutron star. Neutron stars are the core left over after a supernova in a star many times larger than the sun. The effect of gravity is so great that evens the protons of a remaining Core collapse on their own and turn into a neutron. It contains the strongest metal in the universe called nuclear pasta . A neutron star is made up almost entirely of neutrons. More than a hundred years ago, Einstein ...