Press Release

Astronomers Measure New Distances to Nearby Stars

• October 6, 2017

Press Release

2016 Will Be One Second Longer

• July 7, 2016

Status Report

The Sky This Week, 2016 March 15 – 23

• March 15, 2016

Status Report

The Sky This Week, 2015 December 29 – 2016 January 5

• December 30, 2015

Press Release

First Version of Newest USNO Star Catalog Released

• April 24, 2015

Press Release

USNO Releases Final Version of CCD Astrograph Star Catalog

• August 28, 2012

Press Release

U.S. Naval Observatory to Add Leap Second to Clocks

• January 20, 2012

Press Release

U.S. Naval Observatory to Add Leap Second to Clocks

• December 31, 2008

Press Release

Leap Second will be added to clocks on Dec. 31, 2008

• December 9, 2008

Press Release

U.S. Naval Observatory to Add Leap Second to Clocks

• December 22, 2005