The Big Bang Theory - The Nine Planets
Mar 17, 2020 · The Big Bang Theory In his studies, Hubble concluded that objects were moving away from the Earth – something which today is called the Hubble Constant. Celestial objects are moving away from us, and above this, they are doing so faster than the speed of light, which should be theoretically impossible.
The Universe | Facts, Information, History & Definition - The Nine …
Aug 19, 2020 · The Big Bang theory states that the early universe was a hot place that expanded, and began to cool down. This means that the universe should be filled with radiation which is actually the relic/leftovers of the Big Bang event. And this was actually discovered! In fact, background radiation is everywhere.
Where Did the Big Bang Occur? | Space Questions - The Nine Planets
Aug 22, 2023 · The Big Bang event is a theory that exists in physics which describes a possible version of our universe expanding from an initial state of high density and temperature. The work of mathematicians and astronomers has combined for decades in trying to prove or disprove this theory based on our observable universe.
Why Are Galaxies Flat? | Space Questions - The Nine Planets
Sep 5, 2023 · The theoretical Big Bang event is a concept that exists in physics which describes a possible version of our universe expanding from an initial state of high density and temperature. The work of mathematicians and astronomers has combined for decades in trying to prove or disprove this theory based on our observable universe. Expanding Outwards
How Old is the Sun? | Space Questions - The Nine Planets
Aug 22, 2023 · Rocks from Earth were also tested showing that they were 4.6 billion years old again using the theory of the solar system developing together as a whole unit. The presence of fossils on Earth also hints at an age range for the sun as the luminous rays of this star are what helped establish life on this planet.
How Big is the Universe? | Size, Why So Big, Infinite & Facts
Sep 29, 2020 · This theory is named the Big Freeze. Another popular scenario suggests that our Universe will stop expanding, and will actually reverse this process. When this happens, the Universe will re-collapse, and it will possibly lead to a reformation that will start with another Big Bang. This scenario is called the Big Crunch.
Planets Of The Solar System For Kids - The Nine Planets
The particles that make up the rings of Saturn range from the size of small dust to as big a house, or even a mountain. Mercury orbits the Sun with a speed of around 47 kilometers / 29 miles per second. It is the fastest planet. Mars has seasons just like Earth, but they last longer. This is because it takes longer for it to orbit the Sun.
Stars Facts For Kids | Distance, Size, Formation & History
Browse our Star facts for Kids featuring Polaris, Mintaka and many of the famous Stars found through space. Click for more facts and informat
More about Janus - The Nine Planets
Sep 25, 2019 · Saturn X. Janus ( “JAY nus” ) is the sixth of Saturn’s known satellites: orbit: 151,472 km from Saturn diameter: 178 km (196 x 192 x 150) mass: 2.01e18 kg
More about Sedna - The Nine Planets
Sep 26, 2019 · Officially known as 2003 VB12, this object is the most distant body known that orbits our Sun. It is at present over 90 AUs away, 3 times as far as Pluto.