PDF for physics from the official Punjab Board website. Access chapter-wise details for physics with the link to download the ...

Cosmic radiation occasionally contains enormous amounts of energy, but we don’t know why or where this radiation comes from.

Watch an animation of a black hole shooting jets of particles through a "collapsing star at nearly the speed of light" and ...

Using a combination of telescopes, astronomers have characterized the closest supernova linked to a fast X-ray transient. The ...

Collaboration has obtained a high-precision cosmic-ray boron spectrum in the energy range of 10 GeV/n–8 TeV/n, and discovered ...

Alpha, Beta and Gamma radiation all have different properties and effects. Radiation can have destructive effects but can also be used in medicine, industry and electricity generation.