The Universe

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August 09, 2023

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hi my name is adnan working for new freelecing.

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IS UNIVERSE IS EXPANDING

IS UNIVERSE EXPANDING? Ever since Adwin Hubble discovered, that the universe is expanding, there has been a great debates about speed and expression also called the Hubble constant. HISTORY OF OF UNIVERSE EXPANDING In 2000, scientist thought they had reached a consensus: with our Hubble constant at about 72, but since then, two methods of calculating the expansion rate have gotten further and further apart. Scientist thinks it's too big of a difference to just be a statistical fluke. MEANING OF DISTANCE The calibration of the Hubble constant, we need velocity and distance. It requires a measuring the redshift of a galaxy and it's recedes. But distance are much harder. We need standard candle, objects that shine with an intrinsic brightness. That's way, its observed brightness could be converted to a distance. The first method to calculate the Hubble constant, orignated with Hubble. Please started by measuring distance to nearby objects and working his way out, hence t

THE SUN OUR SOLAR SYSTEM THE UNIVERSE

THE SUN OUR SOLAR SYSTEM THE UNIVERSE The sun is main source of energy, it is necessary for life on the Earth, without it, there is no life on the Earth. It is the main part of our solar system. With its great gravitational force, all eight plants, including Earth are orbiting the Sun. The sun is huge ball of hot, glowing gases. It is only star in our solar system. The hottest part of the sun is centre or core. THE SUN While billion of stars are scattered true hot the universe the one of the centre of our solar system. Plays a special role for us here on earth. I was informed about 4.5 billion years ago in the milky way galaxy. It was born when a cloud of dust and gas known as solar nebula collapsed and it's the middle of these formation matter condensed into a burning ball of gas become our sun. The sun's fiery nature along with great gravitational pull and an extensive magnetic field helped it to become the heart of our solar sy

ALL ABOUT OF JUPITER'S MOONS

ALL ABOUT OF JUPITER'S MOONS THE JUPITER'S MOON GALILEAN The smallest but perhaps most exciting of all the Galilean moons. Slightly smaller than our moon, it was known for decades to be very reflective, meaning its surface was probably loaded with water ice. But even so, the Voyager observation was shocking. They showed a surface completely lacking in craters, meaning something had resurfaced the moon like Io or Venus; but Europa has no volcanoes. Even more intriguing the surface was covered in long cracks, dark streaks all over the moon, as well as complex ridge. These or other features appeared to be due to material from the interior of Europa welling up and forming the new surface, kind of like Dev lava does on earth. But in this case, material is water. It's now thought that Europa has an entire ocean of water, sealed up under a solid crust of ice several kilometres thick. Water welling aap hand moving under The crust causes it to shift, creating all the various su

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