The Square Kilometre Array
Rosie Bolton describes the importance of this huge project and some of the interesting problems which needed to be solved in its planning and implementation.
More details | Watch nowGravitational waves and the early universe
Mark Hindmarch talks about our understanding of how we explain the immediate aftermath of the Big Bang.
More details | Watch nowThe State of the Universe
Our Universe was created in 'The Big Bang' and has been expanding ever since. Brian Schmidt describe the vital statistics of the Universe, including its size, weight, shape, age, and composition. He also tries to make sense of the Universe's past, pr....
More details | Watch nowCosmic Microwave Background Radiation and its Role in Cosmology
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....
More details | Watch nowGamma Ray Bursts: Windows on the Universe
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....
More details | Watch nowWhat We Learn When We Learn that the Universe is Accelerating
The 1998 discovery that the universe's expansion is accelerating was not only unexpected, but it also led to the postulation of a previously-unknown 'dark energy' forming almost three-quarters of the "stuff" of the universe. How was this discovery ma....
More details | Watch nowBlack Holes
A very interesting survey of the current knowledge of these strange beasts.
More details | Watch nowGalaxy Clusters
How these ultra-large objects indicate the presence of both dark matter and dark energy.
More details | Watch nowDark Matter
A really good overview of Dark Matter - from an 11-year old! https://www.geoset.info/wp-content/uploads/2015/01/Dark-Matter.pdf
More details | Watch nowThe Impact of Big Science on Astrophysics
The Chandra and Hubble Telescopes are in space and each costs (through operations) several billion dollars. VLT is on the ground but over 20 years of operations will also cost in excess of a billion. They all fall therefore in the category of what ....
More details | Watch nowThe Large Hadron Collider and the Super World
In the period 1990 to 2001 many powerful new astronomical observational facilities have become operational. Hubble Space telescope was launched in 1990; it was followed by the construction of Keck I in 1992 and Keck II in 1996, by the completion of....
More details | Watch now