All Episodes
Star Diary — 374 episodes
The Harvest Moon and the autumn equinox
Discovery beneath the surface of Mars
August 2026 solar eclipse and Perseid meteor shower
How do you weigh a planet that hasn’t formed yet?
Mercury and Saturn return!
How to build a planet-hunting spacecraft
Summer stargazing
How spaceflight hammers the human body
May's 'blue Moon’ – what we'll really see
Strange signals from the galactic centre
The Evening Star is back
Exploring the radio Universe
Spring stargazing is here
Revealing the secrets of Mercury
Jupiter dominates the night sky in February 2026
Listening to black holes colliding
New Year, new stargazing – January 2026
3D-mapping an alien world
Christmas stargazing 2025
Have scientists solved Webb’s ‘impossible’ black holes?
See the Moon and planets under truly dark skies
Can a planet have a planet?
See gas giants Jupiter and Saturn at their best
Can YOU help astronomers find exploding stars?
See the blood Moon rise
How the Rubin Observatory will study the Universe
See Venus and Jupiter’s close approach
Will our Galaxy collide with its neighbour?
Saturn and Venus are morning jewels
The birth of the Universe
Venus is a Morning Star and Mars meets the Lion's heart
Earth, aliens and astronomy
The Flower Moon rises in full bloom
The Eta Aquarid meteor shower lights up the sky
Mars passes through the Beehive
Venus reaches its greatest brightness near the Moon (21 to 27 April)
Strange signals from the 'Eye of God'
Two sparkling diamonds glisten in the night sky (14 to 20 April)
An asteroid passes through a Hamburger (Galaxy) (7 to 13 April 2025)
The Moon blots out the Pleiades (31 March to 6 April 2025)
Partial solar eclipse visible across the UK (24 to 30 March 2025)
Searching for life on alien planets
The Moon passes the heart of the Scorpion (17 to 23 March 2025)
Can you see the Blood Moon? (10 to 16 March 2025)
Mars meets up with the Moon (3 to 9 March 2025)
Mercury returns to the evening skies (24 February to 2 March 2025)
Catch Saturn before it leaves our skies (17 to 23 February 2025)
Webb uses space-bending gravity trick to discover distant stars
The Full Moon shines next to bright star, Regulus (10 to 16 February 2025)
Jupiter lies close to the Moon (3 to 9 February 2025)
The planets continue their parade across the sky (27 January to 2 February 2025)
Jupiter’s shadow transit runs late (20 to 26 January 2025)
First zoomed-in image of a star beyond our galaxy
The Full moon meets with Mars (13 to 19 December 2025)
Mars makes its closest approach to Earth since 2022 (6 to 12 January 2025)
Quadrantid meteor shower is gifted a moonless night (30 December to 5 January)
A Cosmic Christmas Tree (23 to 29 December 2024)
How did life emerge on Earth?
Mars disappears behind the Moon (16 to 22 December 2022)
Geminids meteor shower reaches its peak (9 to 15 December 2024)
Jupiter makes its closest approach to Earth (2 to 8 December 2024)
Saturn, Jupiter, Venus and Mars all shine brightly (25 November to 1 December 2024)
Leonid meteor shower reaches its peak (18 to 24 November 2024)
The mission to make solar eclipses
Catch the last supermoon of the year, the Beaver Moon (11 to 17 November 2024)
Firework galaxies light up the sky (4 to 10 November 2024)
Aurora special Ep 4: Photographing the aurora
Marvel at the Milky Way (28 October to 3 November 2024)
Catch Tsuchinshan-ATLAS before it fades from view (21-27 October 2024)
Aurora special Ep 3: The Solar Cycle
Comet A3 Tsuchinshan-ATLAS makes its closest approach to Earth (14 to 20 October 2024)
Keeping an eye on Comet Tsuchinshan (7 to 13 October 2024)
Aurora special Ep 2: The science of the aurora
Star Diary: Saturn the planet, or Saturn the nebula? (30 September to 6 October 2024)
Star Diary: Catch sight of Saturn’s moon Titan (23 to 29 September 2024)
Star Diary: A supermoon eclipse (16 to 22 September 2024)
Aurora special Ep 1: How to hunt the aurora
Star Diary: Spotting faces in the Moon (9 to 15 September 2024)
Star Diary: See a starry waterfall in the night sky (2 to 8 September 2024)
Star Diary: Mars, Jupiter and the Moon partner up in the night sky (26 August to 1 September 2024)
Star Diary: The Super Blue Moon rises (19 to 25 August 2024)
Star Diary: The Perseids meteor shower peaks (12 to 18 August 2024)
A history of flying saucers
Star Diary: Saturn rises high in the sky (5 to 11 August 2024)
New Horizons at the edge of the Solar System
Star Diary: Saturn’s moon casts its shadow across the planet (29 July to 4 August 2024)
Star Diary: Taurus the Bull gains another eye (22 to 28 July 2024)
Star Diary: Mars passes the Pleiades (15 to 21 July 2024)
Star Diary: Can you find Barry Manilow in the Moon? (8 to 14 July 2024)
Star Diary: Jupiter’s moons form a triangle (1 to 7 July 2024)
Star Diary: When will ‘new’ star, T Coronae Borealis appear? (24 to 30 June 2024)
Star Diary: The Moon and Ceres take a tour through the Teapot (17 to 23 June 2024)
How black holes changed everything
Star Diary: See the Lake of Death on the Moon (10 to 16 June 2024)
Star Diary: Two comets streak across the sky (3 to 9 June 2024)
Star Diary: Nightshining clouds return to the twilight sky (27 May - 2 June 2024)
The rock that fell to Earth
Star Diary: Have you ever seen a hamburger in the sky? (20 to 26 May 2024)
Star Diary: The Milky Way puts on a show (13 to 19 May 2024)
Star Diary: See the crescent Moon pass the Pleiades (6 to 12 May 2024)
Star Diary: The Moon lies in The Teapot (29 April to 5 May 2024)
Star Diary: The Lyrid Meteor shower reaches its peak (22 to 28 April 2024)
Water found around a distant star
Star Diary: Comet 12P/Pons-Brooks reaches its brightest (15 to 21 April 2024)
Star Diary: The Great American Eclipse arrives (8 to 14 April)
Star Diary: Comet shine during the new Moon (1 to 7 April)
Star Diary: The Comet and the Coathanger (25 to 31 March)
Why do people believe in UFOs?
Star Diary 18 to 24 March 2024
Star Diary 11 to 17 March 2024
Star Diary 4 to 10 March 2024
Star Diary 26 February to 3 March 2024
Star Diary 19 to 25 February 2024
How x-rays unlock the secrets of the Universe
Star Diary 12 to 18 February 2024
Star Diary 5 to 11 February 2024
Star Diary 29 January to 4 February 2024
Star Diary 22 to 28 January 2024
How Asteroid Bennu could unlock the secrets of the Solar System
Star Diary 15 to 21 January 2024
Star Diary 8 to 14 January 2024
Star Diary 1 to 7 January 2024
Star Diary, 25 to 31 December 2023
Star Diary, 18 to 24 December 2023
Star Diary, 11 to 17 December 2023
Star Diary, 4 to 10 December 2023
Moonshot success, with astronaut Mike Massimino
Star Diary, 27 November to 3 December 2023
Star Diary, 20 to 26 November 2023
Star Diary, 13 to 19 November 2023
Star Diary, 6 to 12 November 2023
Star Diary, 30 October to 5 November 2023
Star Diary, 23 to 29 October 2023
Interview: The Search for Alien Life
Star Diary, 16 to 22 October 2023
How can we see the heat of the Big Bang?
Star Diary, 9 to 15 October 2023
Star Diary, 2 to 8 October 2023
Star Diary, 25 September to 1 October 2023
Star Diary: 18 to 24 September 2023
Exploring a magnetic Solar System
Star Diary, 11 to 17 September 2023
Star Diary, 4 to 10 September 2023
Star Dairy, 28 August to 3 September , 2023
Star Dairy, 21 to 27 August, 2023
Star Diary, 14 to 20 August
Star Diary, 7 to 13 August
Star Diary, 31 July to 6 August
Hunting down strange signals with humans and machines.
Star Diary, 24 to 30 July
Interview: Spaceflight entrepreneur Mishaal Ashemimry
Star Diary, 17 to 23 July
Star Diary, 10 to 16 July, 2023
Detecting spacetime ripples of supermassive black holes
Star Diary, 3rd to 9th of July, 2023
Star Diary, 26 June to 2 July, 2023
Star Diary, 19 to 25 June, 2023
The search for Earth 2.0
Star Diary, 11 to 18 June, 2023
Star Diary, 5 to 11 June, 2023
Star Diary, 29 May to 4 June, 2023
Star Diary, 22 to 28 May, 2023
Interview: Space Shuttle astronaut Kathy Sullivan
Star Diary, 15 to 23 May, 2023
Star Diary, 8 to 14 May, 2023
Star Diary, 1 to 7 May, 2023
Star Diary, 24 to 30 April 2023
Interview: Comet Madness
Star Diary: What’s in the night sky, 17 to 23 April
Humans Of Space: Peter Visscher
Star Diary: What’s in the night sky, 10 to 16 April
Interview: From pop star to Star City with Lance Bass
Star Diary: What’s in the night sky, 3 to 9 April
Humans Of Space: Aaron Yung
Star Diary: What’s in the night sky, 27 March to 2 April
Star Diary: What’s in the night sky, 20 to 26 March
Black holes and bending spacetime
Humans Of Space: Nicole Stott
Star Diary: What’s in the night sky, 13 to 19 March, 2023
Star Diary: What's in the night sky, 6th March to 12th March 2023
Humans Of Space: Jeff Hoffman
Star Diary: What's in the night sky, 27 February to 5 March 2023
Observing the 850-year-old aftermath of colliding stars
Star Diary: What's in the night sky, 20 to 26 February 2023
Humans Of Space: James L. Green
Star Diary: What's in the night sky, 13 to 19 February 2023
Star Diary: What’s in the night sky, 6 to 12 February 2023
Star Diary: What’s in the night sky, 30 January to 5 February 2023
Interview: Is interstellar travel possible?
Star Diary: What’s in the night sky, 23 to 29 January 2023
Star Diary: What’s in the night sky, 16 to 22 January 2023
Star Diary: What’s in the night sky, 9 to 15 January 2023
Star Diary: What’s in the night sky, 2 to 8 January, 2023
Star Diary: What’s in the night sky, 26 Dec '22 to 1 Jan '23
Star Diary: What’s in the night sky, 19 to 25 September 2022
What would happen if we made contact with extra-terrestrial intelligence?
Star Diary: What’s in the night sky, 12 to 18 December 2022
Interview: Apollo 17 student ambassador Dermot Gethings
Star Diary: What’s in the night sky, 5 to 11 December 2022
Star Diary: What’s in the night sky, 28 November to 4 December 2022
Star Diary: What’s in the night sky, 21 to 27 November 2022
Star Diary: What’s in the night sky, 14 to 20 November 2022
Star Diary: What’s in the night sky, 7 to 13 November 2022
Amazing cosmic facts
Star Diary: What’s in the night sky, 31 October to 6 November2022
Star Diary: What’s in the night sky, 24 to 30 October 2022
Piecing together the history of the Universe
Webb Telescope and the secrets of the Solar System
Star Diary: What’s in the night sky, 17 to 23 October 2022
Star Diary: What’s in the night sky, 10 to 16 October 2022
Star Diary: What’s in the night sky, 3 to 9 October 2022
Interview: A Brief History of Black Holes
Star Diary: What’s in the night sky, 26 September to 2 October 2022
Interview: NASA's plan to crash a spacecraft into an asteroid
Star Diary: What’s in the night sky, 19 to 25 September 2022
Star Diary: What’s in the night sky, 12 to 18 September 2022
Star Diary: What’s in the night sky, 5 to 11 September, 2022
Star Diary: What’s in the night sky, 29 August to 4 September
Interview: How JWST observes the Universe
Interview: How JWST will observe exoplanets
Star Diary: What’s in the night sky, 22 to 28 August 2022
Star Diary: What’s in the night sky, 15 to 21 August 2022
Interview: Observing the Solar System in x-ray
Star Diary: What’s in the night sky, 8 to 14 August
Star Diary: What’s in the night sky, 1st to 7th August
Bluedot 2022 | Why study asteroids?
Bluedot 2022 | A new era for human spaceflight?
Bluedot 2022 | What is space weather?
Star Diary: What’s in the night sky, 25 to 31 July
Star Diary: What’s in the night sky, 18 to 24 July
Star Diary: What’s in the night sky, 11 to 17 July 2022
Star Diary: What’s in the night sky, 4 to 10 July
Star Diary: What’s in the night sky, 27 June to 3 July
The search for extraterrestrial intelligence
Star Diary: What’s in the night sky, 20 to 26 June
Space Women: Maggie Aderin-Pocock
Star Diary: What’s in the night sky, 13 to 19 June
Star Diary: What's in the night sky from 6 to 12 June
Star Diary: What's in the night sky from 30 May to 5 June
What is dark energy?
Star Diary: What’s in the night sky, 23 to 29 May 2022
Star Diary: What’s in the night sky, 16 to 22 May 2022
Star Diary: What’s in the night sky, 9 to 15 May 2022
Star Diary: What’s in the night sky, 2 to 8 May 2022
Hubble, James Webb and life beyond Earth
Star Diary: What’s in the night sky, 25 April to 1 May 2022
Star Diary: What’s in the night sky, 18 to 24 April 2022
Star Diary: What’s in the night sky, 11 to 17 April 2022
Star Diary: What’s in the night sky, 4 to 10 April 2022
What happens if someone dies in space?
Star Diary: What’s in the night sky, 28 March to 3 April 2022
Star Diary: What’s in the night sky, March 2022
Interview: The science of exploding stars
Star Diary: What’s in the night sky, February 2022
Astronomy events of the 21st Century
Interview: Astrobiologist Nicol Caplin
Star Diary: What’s in the night sky, January 2022
Launch of the James Webb Space Telescope
Interview: Astronaut Nicole Stott
Star Diary: What’s in the night sky, December 2021
Deflecting asteroids with NASA's DART mission
Interview: How to see the Northern Lights
Star Diary: What’s in the night sky, November 2021
Interview: Astronaut Nora Al Matrooshi
Remembering Rosetta
Interview: Natalie Starkey talks space volcanoes
Star Diary: What’s in the night sky, October 2021
Interview: UK astronaut Tim Peake
Perseverance: 200 sols on Mars
Star Diary: What’s in the night sky, September 2021
Interview: The largest radio telescope in the world
Telescopes that changed astronomy
Star Diary: What’s in the night sky, August 2021
Interview: How to make a Universe from scratch
Jupiter Special: a celebration of the gas giant
Interview: Cosmic Collisions
Star Diary: What's in the night sky, July 2021
Apollo 15's 50th anniversary
Interview: solar weather expert, Mathew Owens
Interview: Emily Lakdawalla talks Mars exploration
Star Diary: What's in the night sky, June 2021
20 years of NASA's WMAP mission
Interview: How to photograph a black hole
Interview: Andy Weir, author of The Martian
Star Diary: What's in the night sky, May 2021
Interview: Genetic engineering for spaceflight
The Disordered Cosmos
How the Great Debate changed astronomy forever
Interview: Light pollution from satellites
Star Diary: What's in the night sky, April 2021
Yuri Gagarin, the first human in space
Interview: How to photograph an exoplanet
How Uranus's rings were discovered
Star Diary: What's in the night sky, March 2021
Interview: How SPHEREx will track the history of the Universe
OSIRIS-Rex and the Asteroid belt
Interview: The Emirates Mars Mission with Hessa Al Matroushi
Star Diary: What's in the night sky, February 2021
2021: A new year for astronomy and spaceflight
Interview: Kellie Gerardi on the future of spaceflight
2020's spaceflight and astronomy highlights
Interview: NASA astronaut Terry Virts
A history of Palomar Observatory
What next for New Horizons?
Is there life beyond Earth?
What's a black hole? Interview with astrophysicist Janna Levin
Interview: NASA astronaut Jeff Williams
20 years of the International Space Station
Interview: Getting The Right Stuff right
Interview: Stuart Clark on the history of astronomy
ASTHROS: the stratospheric balloon observatory
Galaxies
Interview: Life on Venus?
Interview: Libby Jackson on the history of human spaceflight
The life and death of stars
Trident: a new mission to explore Neptune's moon Triton
The End of Everything: interview with US cosmologist Katie Mack
The edge of the Solar System
Cluster Special: marking 20 years of the European solar mission
Deflecting asteroids with DART and Hera
CHEOPS: Interview with exoplanet scientist Kate Isaak
Venus special: farewell to the evening star
WFIRST: a new era for exoplanet hunting
Hubble at 30: how the space telescope changed astronomy forever
Apollo 13 special: interview with Mission Control's Jerry Woodfill
Apollo 13 special: how astronauts and Mission Control averted disaster
Day Eight – Back Garden Astronomy Week: The Moon
Day Seven – Back Garden Astronomy Week: The Moon
Day Six – Back Garden Astronomy Week: The Moon
Day Five – Back Garden Astronomy Week: The Moon
Day Four – Back Garden Astronomy Week: The Moon
Day Three – Back Garden Astronomy Week: The Moon
Day Two – Back Garden Astronomy Week: The Moon
Day One – Back Garden Astronomy Week: The Moon
Trailer: Back Garden Astronomy Week special series
Europe in space: the next decade
The story of the BBC’s Horizon programme
Pluto at 90: how Clyde Tombaugh discovered a new world
The biggest stories of 2019 and top tips for stargazing beginners
The biggest space missions launching in 2020
A look at UCL Observatory's new 80cm Perren telescope
Planetarium special
Apollo 12, volcanic moons and cannibal galaxies
Jim Al-Khalili, OSIRIS REx, IIAPY 2019, tardigrades on the Moon
Chasing comets, Indian lunar ambitions, Juno at Jupiter
Bluedot Festival 2019 special
Apollo 11: 50th anniversary special
Talking moonwalkers with Andrew Smith
Touring the Solar System
Black holes, asteroid bombs and the solar cycle
Kielder Observatory Special
Light pollution, Mars rovers and Jupiter's storms
Planet 9 in doubt, a beautiful Beehive and an aurora adventure
New Horizons and event horizons
Lunar eclipses, 2019’s space missions and green stars
2018 in review and scientific observations of Mars
Ice on the Moon, Apollo 7 and advice for new astronomers
NASA's Dawn mission, Holst’s Planets and water on Mars
Bluedot Festival 2018 special
Meteor showers and space rocks that fall to Earth
The Sun, a danger to life on Earth?
The mission to map the Milky Way
Sifting through Mars's sediment with a planetary geologist
Bowie, Extraterrestrial Intelligence and Multi-Messenger Astrophysics
Christmas Special: Tales from 2017
International Astronomy Show 2017 Special
Radio Astronomy Shorts - Episode 1: Dava Sobel
Radio Astronomy: Bluedot Festival 2017 Special
Episode 6: The 2016 retrospective
Episode 5: So long, Schiaparelli
Episode 4: Farewell Rosetta
Radio Astronomy, Episode 3: Juno at Jupiter
Episode 2: Einstein’s Vindication
Episode 1: Astronaut Driving lessons