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  • Explore BCO's Universe

    Exciting interactive exhibits and activities await at BCO, from exploring space and alien lifeforms to the Castle's battlements, gunnery and rich maritime history.

    Exhibits & Tickets

  • Discover & Learn at BCO

    From school tours including castle visits as Gaeilge to workshops for all ages, a class trip to BCO educates and entertains through hands-on discovery.

    School Tours & Workshops

    Featured Exhibits

    Journeys of Exploration

    Housed in an iconic Cork landmark dating back to 1582, a visit to Blackrock Castle Observatory includes entry to Journeys of Exploration.

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    Cosmos at the Castle

    Learn about the Universe, extreme life forms on Earth and life in outer space!

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    Daily Schedule

    Plan your visit with an up to date list of the times of activities, tours and events at Blackrock Castle.

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    Upcoming Events

    Tech Week 2018

    5 days duration

    Monday 23rd April 2018

    Details & Booking »

    Junior Space Camp

    Sold Out!

    Sunday 6th May 2018

    Details & Booking »

    Junior Space Camp

    Sold Out!

    Sunday 3rd June 2018

    Details & Booking »

    BCO News & Blog

    Lyrid Meteors 2018

    April 19, 2018

    Where to see the Lyrid Meteors on April 21/22

    Sky Matters

    April 6, 2018

      This month’s Sky Matters features a tribute to the late Stephen Hawking, advice on buying your first telescope, a guide to the night sky of April, and a deep dive into the Virgo cluster. Check it out here: April Sky Matters 2018 Featured image credit: Ivicabrlic Used under license

    Space Weather Update

    March 15, 2018

    A minor solar storm is on its way - despite the headlines.

    Niamh Shaw – Artist in residence

    March 13, 2018 / /

    Diary of a Martian Beekeeper

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    © CIT Blackrock Castle Observatory T/A Cosmos Education Ltd.  Registered in Ireland: Company No. 451645. Registered Charity #CHY 18134. Registered Address: CIT Blackrock Castle Observatory, Castle Road, Blackrock, Cork, Ireland T12 YW52