Star Diary

By BBC Sky at Night MagazineScience Astronomy

Star Diary episodes

March 02 Spring stargazing is here
Find out which planets are best in the night sky in March 2026, plus key times to observe the Moon, stars and constellations.

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32 min
February 09 Revealing the secrets of Mercury
The European Space Agency's BepiColombo mission arrives at Mercury later this year. Planetary scientist Emma Bunce reveals the mysteries the mission could uncover.

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31 min
January 30 Jupiter dominates the night sky in February 2026
Find out the best things to see in the sky this month, from the planets and constellations to deep-sky targets for your telescope.

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29 min
January 12 Listening to black holes colliding
Tessa Baker discusses newly-discovered cosmic collisions and how they’re helping her unlock the secrets of the Universe.

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24 min
January 06 New Year, new stargazing – January 2026
Pete Lawrence and Paul Abel reveal the best things to see in the night sky to kick off a new year of stargazing. Happy 2026 everyone!

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30 min
December 15, 2025 3D-mapping an alien world
Astronomer Anjali Piette reveals how she and colleagues created a 3D view of a scorching gas giant around a distant star.

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23 min
November 28, 2025 Christmas stargazing 2025
Pete Lawrence and Paul Abel reveal what you should be looking at in the December 2025 night sky, including the best planets, the Geminid meteor shower, Orion and top times to see the Moon.

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27 min
November 14, 2025 Have scientists solved Webb’s ‘impossible’ black holes?
Astronomers say the James Webb Space Telescope has seen black holes at the dawn of time that shouldn't exist. But a new study may be able to explain what's going on. Astronomer Seb Hoenig reveals how a new look at the early Universe could show that JWST has got black holes all wrong.

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21 min
October 31, 2025 See the Moon and planets under truly dark skies
As winter gets underway, we’re approaching the darkest time of year. Find out the best times to see the Moon and planets this month, including November’s supermoon.

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32 min
October 14, 2025 Can a planet have a planet?
Astronomer Belinda Damian discusses her research into the giant, free-floating worlds that may one day be able to form their own planetary systems.

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19 min