Winchester Science Centre is a hands-on educational science and technology centre located at Morn Hill near Chilcomb, three miles from the city of Winchester in Hampshire, England. The centre houses a range of interactive exhibits, aimed at a core audience of children aged 5–12 years old and has over 185,000 annual visitors. The dome's planetarium seats 176 and is the UK's largest standalone planetarium. The centre is operated by Wonderseekers, a registered charity in England and Wales.