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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

    Blackrock Castle is closed on Friday, 27th July, 2018 Details

    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

    Space Camp 2018

    Details & Booking »

    Red Moon Serene Universe

    Friday 27th July 2018

    Details & Booking »

    Junior Space Camp

    Sunday 5th August 2018

    Details & Booking »

    BCO News & Blog

    Sky Matters – July 2018

    June 28, 2018 /

    Sky Matters: A guide to the night sky - July 2018

    Niamh’s Baikonur Trip- Day 1

    June 14, 2018 /

    Day 1- Kazakstan- Terra Firma, but not yet Baikonur

    Niamh’s Baikonur Trip- Day 0

    June 14, 2018 / /

    Dublin to Frankfurt and onwards!

    Organic Matter Found on Mars

    June 8, 2018

    In a hugely significant development, organic compounds have been found on the red planet. But what does this mean in terms of the search for life beyond Earth?

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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