16 results found for cosmology

Light from a star that exploded 13 billion years ago has reached Earth, setting a new record for the most distant astronomical object yet observed. The characteristics of the explosion show that massive stars were already forming only 630 million yea....

In the first half of the 20th century other galaxies were recognized, their red shift measured and theories of the whole universe were developed. They included Big Bang and Steady State. Arno Penzias and I found the Cosmic Microwave Radiation (CMB) i....

A really good overview of Dark Matter - from an 11-year old! https://www.geoset.info/wp-content/uploads/2015/01/Dark-Matter.pdf

How these ultra-large objects indicate the presence of both dark matter and dark energy.

Gamma-Ray Bursts are the most powerful explosions in the universe. They happen about once per day in the visible universe. Their fantastic engines pump out as much energy in a matter of seconds as all the stars in a galaxy do in a billion years. This....

Mark Hindmarch talks about our understanding of how we explain the immediate aftermath of the Big Bang.

Theory and evidence for gravity waves

Chemistry has progressed in a way few outsiders appreciate. It underpins many other sciences; from genomics and molecular biology, food and sports science, through to cosmology and planetary science. Why hasn't the public impression of chemistry evol....

Optical (electronic) spectra from space: comets. The detection of the pulsar in the Crab Nebula. The Three Degree Background. The detection by spectroscopy of the birth of stars.

An overview of the Universe and its component parts e.g. galaxies, stars, planets etc.

It seems that most of the universe is made up of mysterious ingredients which we cannot see directly. Dr Bridle describes in pictures 'gravitational lensing', the bending of light by gravity, which is predicted by Einstein's General Relativity. Dr Br....

Modern scientific theory describes a perfectly symmetrical Universe. A Universe in which matter is destroyed within an instant of its appearance and where nothing we now know could ever have happened. Human life itself seems to be lopsided, as the sp....