Changing the Rules

There are two important differences between Laplace’s idea of a dark star and the modern idea of a Black hole. The differences are due to two important discoveries of modern astrophysics. The first discovery is that nothing can travel faster than light. This means that if light cannot escape from a massive star, nothing can. This also means that a dark star is a hole, because nothing that is pulled in by the star’s gravity can never escape. The second difference is that Laplace used Newton’s law of gravity as the basis of his work. Modern astrophysics says that these laws do not work in and around Black holes.

Images of Sirius

Proxima Centauri

Proxima Centauri is the closest known star in the Solar System and is about 10,000 times dimmer than the Sun. It is about 4.3 light years away and is visible with binoculars. It is the faintest member of a triple star system called Alpha Centauri present in the constellation of Centaurus. The other two stars form a brilliant double star when viewed through a small astronomical telescope. They are each about as bright as the Sun and take 80 years to orbit each other. The Proxima Centauri flares up every now and then and appears brighter than normal for just a few minutes. It takes about a million years to orbit the bright stars.

Images of Supernova Remnant

Images of Eta Carinae

Types of Galaxies(IMAGE)