40 results found for astronomy

View Grid List
Sort A-Z By date
00:21:00

The Square Kilometre Array

by Rosie Bolton
The Square Kilometre Array
for 14-19 and upwards,
Lectures | 14-19 and upwards | 8 years ago | 4736 views
Rating:

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 now
00:17:00

Gravitational waves and the early universe

by Mark Hindmarsh
Gravitational waves and the early universe
for 14-19 and upwards,
Discussions | 14-19 and upwards | 8 years ago | 1590 views
Rating:

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

More details | Watch now
00:33:00

The State of the Universe

by Brian Schmidt
The State of the Universe
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1245 views
Rating:

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 now
00:31:00

Cosmic Microwave Background Radiation and its Role in Cosmology

by Robert Wilson
Cosmic Microwave Background Radiation and its Role in Cosmology
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 2086 views
Rating:

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 now
00:30:00

Gamma Ray Bursts: Windows on the Universe

by George Smoot
Gamma Ray Bursts: Windows on the Universe
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1675 views
Rating:

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 now
00:33:00

What We Learn When We Learn that the Universe is Accelerating

by Saul Perlmutter
What We Learn When We Learn that the Universe is Accelerating
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1444 views
Rating:

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 now
00:07:00

Black Holes

by Angela Luo
Black Holes
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 9 years ago | 1886 views
Rating:

A very interesting survey of the current knowledge of these strange beasts.

More details | Watch now
00:05:00

Galaxy Clusters

by Michelle Sun
Galaxy Clusters
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 9 years ago | 2209 views
Rating:

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

More details | Watch now
00:11:00

Gravitational lensing

by Hugo Westwood-Dunkley
Gravitational lensing
for 11-14 and upwards,
Highschool presentations | 11-14 and upwards | 9 years ago | 1981 views
Rating:

A young scientist's thoughts

More details | Watch now
00:05:00

Dark Matter

by Lucas Belz-Koelin
Dark Matter
for 11-14 and upwards,
Highschool presentations | 11-14 and upwards | 9 years ago | 2178 views
Rating:

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 now
00:44:00

The Impact of Big Science on Astrophysics

by Riccardo Giacconi
The Impact of Big Science on Astrophysics
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1301 views
Rating:

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 now
00:35:00

The Large Hadron Collider and the Super World

by David Gross
The Large Hadron Collider and the Super World
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1649 views
Rating:

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
00:40:00

The Beginning and Development of the Universe

by George Smoot
The Beginning and Development of the Universe
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1518 views
Rating:

By careful investigation of relic left on the cosmic scene we have very good evidence and constraints on what has occurred since the beginning of the Universe. This talk reviews the evidence including images and information from the very first light....

More details | Watch now
00:05:00

Gravity Waves

by James Pye
Gravity Waves
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 9 years ago | 2302 views
Rating:

Theory and evidence for gravity waves

More details | Watch now
00:02:00

Olber’s Paradox

by Various Presenters
Olber’s Paradox
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 10 years ago | 2098 views
Rating:

Students explain why the sky is dark at night, despite there being many billions of bright stars.

More details | Watch now
01:01:00

Discovery of a dynamic atmosphere at one of Saturn’s moons, Enceladus

by Michele Dougherty
Discovery of a dynamic atmosphere at one of Saturn’s moons, Enceladus
for 14-19 and upwards,
Lectures | 14-19 and upwards | 11 years ago | 2118 views
Rating:

In recent years, Enceladus, Saturn's sixth largest moon, has become a major attraction for scientists, with many believing it offers the best hope we have of discovering other life in our solar system. NASA's Cassini spacecraft has been orbiting Satu....

More details | Watch now
01:01:00

The end of the world in 2012? Science communication and science scares

by Jocelyn Bell Burnell
The end of the world in 2012? Science communication and science scares
for 14-19 and upwards,
Lectures | 14-19 and upwards | 11 years ago | 6070 views
Rating:

21st December 2012 marks an ending of the Mayan calendar and is asserted by some to mark the end of the world. This scare is examined from an astronomical point of view, followed by some reflections on what the scare tells us about the communication ....

More details | Watch now
00:47:00

Chasing Venus: the race to measure the heavens

by Andrea Wulf
Chasing Venus: the race to measure the heavens
for 14-19 and upwards,
Lectures | 14-19 and upwards | 11 years ago | 1766 views
Rating:

New York Times Best Selling and award-winning author Andrea Wulf tells the extraordinary story of the first global scientific collaboration set amid warring armies, hurricanes, scientific endeavour and personal tragedy. On 6 June 1761 and 3 June 1769....

More details | Watch now
01:00:00

Stones from the sky: A heaven-sent opportunity to talk about science

by Colin Pillinger
Stones from the sky: A heaven-sent opportunity to talk about science
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1417 views
Rating:

Meteorites provide us with laboratory samples from distant bodies including asteroids, comets, the moon, Mars and even ancient stars. Witnesses to the extraordinary event when one is seen to fall from the sky, or anyone finding a sample on the ground....

More details | Watch now
00:10:00

The Exploration of Mars

by Ryan Stevenson
The Exploration of Mars
for 14-19 and upwards,
Undergraduate presentations | 14-19 and upwards | 13 years ago | 1619 views
Rating:

After looking at Mars through telescopes for hundreds of years and seeing irrigation channels and it was believed that there could have been life on Mars. Many superstitions and movies made about life on Mars, including Orson Wells' War of the Worlds....

More details | Watch now
00:06:00

Neutron Star

by Steve Milian
Neutron Star
for 14-19 and upwards,
Undergraduate presentations | 14-19 and upwards | 13 years ago | 1489 views
Rating:

Core-collapse supernovae and other things.

More details | Watch now
.....

The eerie silence – are we alone in the universe?

by Paul Davies
The eerie silence – are we alone in the universe?
for 14-19 and upwards,
Lectures | 14-19 and upwards | 14 years ago | 2279 views
Rating:

Fifty years ago, a young astronomer named Frank Drake pointed a radio telescope at nearby stars in the hope of picking up a signal from an alien civilization. Thus began one of the boldest scientific projects in history: the Search for Extraterrestri....

More details | Watch now
01:05:00

The dark side of the universe

by Joe Silk
The dark side of the universe
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1691 views
Rating:

The emergence of cosmic structure is an outcome that has been studied by peering back through the mists of time to the remote depths of the universe as well as by deciphering the fossil structure of nearby galaxies. One of the greatest mysteries in t....

More details | Watch now
01:00:00

Seeing the invisible: observing the dark side of the universe

by Sarah Bridle
Seeing the invisible: observing the dark side of the universe
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 5684 views
Rating:

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....

More details | Watch now

Items per page: