For a few nights at the beginning of January since 2011, Stargazing LIVE has been on BBC tv screens.
Website: BBC Two - Stargazing LIVE, Series 4
Every year it has been hosted by University of Manchester physics professor Brian Cox and Irish stand up comedian Dara Ó Briain (who presents comedy topical BBC panel show Mock the Week), who studied mathematics and theoretical physics at college.
It is broadcast live from the world famous Jodrell Bank Observatory in Cheshire.
Tonight the show returns for the first of three nights at 8pm on BBC1. So if you can watch it, then I recommend you do.
Each of the one hour episodes tonight, tomorrow and Thursday will be followed immediately by half an hour of Stargazing Live: Back To Earth, in which the duo and guest scientists try to answer viewers' questions and look at viewers' astronomy photos.
In the most ambitious series to date, Brian Cox and Dara O Briain are back at Jodrell Bank Observatory, in the first of three live shows with the latest news and the best views of the night sky.
This time the team have taken on an astonishing challenge - to capture one of the top highlights of the solar system - the mysterious and elusive northern lights. But will the lights reveal themselves? Liz Bonnin reports live from within the Arctic Circle, joining aurora researchers in northern Norway, who will help her unravel the secrets of this eerie spectacle.
Brian and Dara have the very latest weather reports from around the solar system. They welcome celebrated NASA scientist Dr Carolyn Porco, who shares some of the most jaw-dropping pictures of the solar system ever beamed back to Earth: Saturn's gigantic storms and baffling hexagonal clouds taken by the Cassini probe.
Dara witnesses the launch of a new NASA mission to Mars, while resident stargazer Mark Thompson chases clear skies to show the best of what there is to see above the UK.
And if the January weather is not for you, you can help the team search for undiscovered galaxies from the comfort of your own living room.
Website: BBC Two - Stargazing LIVE, Series 4
Every year it has been hosted by University of Manchester physics professor Brian Cox and Irish stand up comedian Dara Ó Briain (who presents comedy topical BBC panel show Mock the Week), who studied mathematics and theoretical physics at college.
It is broadcast live from the world famous Jodrell Bank Observatory in Cheshire.
Tonight the show returns for the first of three nights at 8pm on BBC1. So if you can watch it, then I recommend you do.
Each of the one hour episodes tonight, tomorrow and Thursday will be followed immediately by half an hour of Stargazing Live: Back To Earth, in which the duo and guest scientists try to answer viewers' questions and look at viewers' astronomy photos.
In the most ambitious series to date, Brian Cox and Dara O Briain are back at Jodrell Bank Observatory, in the first of three live shows with the latest news and the best views of the night sky.

This time the team have taken on an astonishing challenge - to capture one of the top highlights of the solar system - the mysterious and elusive northern lights. But will the lights reveal themselves? Liz Bonnin reports live from within the Arctic Circle, joining aurora researchers in northern Norway, who will help her unravel the secrets of this eerie spectacle.
Brian and Dara have the very latest weather reports from around the solar system. They welcome celebrated NASA scientist Dr Carolyn Porco, who shares some of the most jaw-dropping pictures of the solar system ever beamed back to Earth: Saturn's gigantic storms and baffling hexagonal clouds taken by the Cassini probe.
Dara witnesses the launch of a new NASA mission to Mars, while resident stargazer Mark Thompson chases clear skies to show the best of what there is to see above the UK.
And if the January weather is not for you, you can help the team search for undiscovered galaxies from the comfort of your own living room.