Black holes are areas of space where the gravity is so strong that nothing, not even light can escape. However, that was the understanding held until 1974, when the astrophysicist Stephen Hawking proposed that black holes are indeed radiant objects, … Read More
Category: Space
Articles on the study of celestial objects like planets, comets, stars and galaxies; the interstellar medium and cosmic radiation. Also covered is the technology development for space exploration.
The Bending of Starlight as Predicted by Einstein
Light falls in a gravitational field, for instance, a laser beam fired horizontally across a room will be closer to the ground on the side where it hits the far wall than it was when it left the laser. Likewise, … Read More
The physics behind Global Positioning System (GPS)
The Global Positioning System (GPS) is a framework that allows anyone, with the aid of a small device, to identify exactly where they are on the earth’s surface. The GPS is made up of several satellites in accurate, well-known orbits … Read More
What is a Black Hole?
A black hole can be described as an area of space where the gravity is so strong that nothing, including light or other electromagnetic waves has enough energy to escape it. In varied ways, a black hole acts like an … Read More