Just how fast is the Universe expanding?
The New Horizons probe's encounter with Ultima Thule.
The story of how the first picture of a supermassive black hole was captured.
Insight - NASA's latest mission to Mars - goes in search of the secrets below its surface.
How the SOFIA telescope can tell us why stars are no longer forming in space.
The Sky at Night investigates how Mercury probe BepiColombo was built.
A look at Britain's attempt to become a major player in the modern space race.
A look at the US and Japanese attempts to bring a piece of an asteroid back to Earth.
This episode finds out just how damaging a coronal mass ejection could be.
Chris Lintott travels to Western Australia to find out how the cosmic dawn was seen.
How Nasa's Juno spacecraft's images of Jupiter provide new scientific insight.
Using The Sky at Night archives, a look at different aspects of the world of astronomy.
How the ESA's Gaia Space telescope has been mapping the heavens in unprecedented detail.
The latest results from missions that are attempting to find signs of life on Mars.
The team investigates the first ever object to visit our solar system from outer space.
Why 95 per cent of everything in the universe is actually, one way or another, invisible.
Celebrating the ancient art of looking up, studying and marvelling at the night sky.
The world of transient phenomena, events that happen over seconds or even milliseconds.
For the first time in a generation there are credible plans to fly to the moon.
How future space exploration has been changed by the discoveries of the Cassini mission.
Chris Lintott and Maggie Aderin-Pocock investigate space dust.
The team looks at the trans-Neptunian objects, a vast number of strange, dark, icy worlds.
The team are granted rare access to the Vatican and its observatory, the Specola Vaticana.
A look at how our knowledge of the universe has been transformed in the last six decades.
In the Canary Islands the team take control of some of the world's largest telescopes.
The team unveil the most detailed 3D map of the Milky Way ever produced.
The team looks back on the major stories of 2016 and sees how they have developed.
The Sky at Night team investigates the ongoing hunt for life on Mars.
From the ESA, as the Rosetta spacecraft is crashed into comet 67P Churyumov-Gerasimenko.
The team focuses on our nearest neighbouring star - Proxima Centauri.