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Just a second …

Do you ever find yourself wishing that there were more hours in the day? If so, you may be comforted to know that Tuesday, June 30, 2015 will actually be a little longer than normal this year; not by hours, but a single second – a leap second. This peculiar…

A giant tool in the sky – testing general relativity

As we approach the Summer Solstice, our Curator of the Royal Observatory looks at how the sun was used nearly 100 years ago to test Einstein’s theory of general relativity.   It’s great to enjoy the sunshine and long hours of daylight at this time of year. As we approach the Summer…

Interview with Will Gater from Sky at Night Magazine about ‘Visions of the Universe’

Visions of the Universe is the summer exhibition here at Royal Museums Greenwich, filling the Special Exhibitions Gallery at the National Maritime Museum with stunning and beautiful images of stars, planets and galaxies. The exhibition tells the story of how telescopes and cameras have revolutionised our view of the Universe…

336 today

The Royal Observatory has several possible birthdays. I have, for example, seen it given as 4 March or 22 June 1675. The first is the date of Charles II’s Royal Warrant that ordered the Board of Ordnance to pay for “the support and Maintenance” of John Flamsteed, appointed “our astronomical observator” and charged…