[Thursday, May 10, 2012] New Horizons remains healthy and on course, now more than 23 times as far from the Sun as the Earth is.

[Sunday, February 19, 2012] Few spacecraft travel 10 astronomical units during their entire mission. But with New Horizons already logging more than twice that distance on its way to Pluto, coming to within 10 AU of its main target is akin to entering the home stretch.

[Sunday, February 19, 2012] On Jan. 21, the operations team successfully tested the New Horizons Radio Science Experiment, taking advantage of an Earth-moon-spacecraft alignment to simulate atmospheric measurements "REX" will make at Pluto in 2015.

[Wednesday, February 1, 2012] New Horizons' flight to explore the Pluto system in July 2015 will be a historic accomplishment for the U.S. space program, for planetary science, and indeed for all humankind.

[Wednesday, January 18, 2012] Today, the team fulfilling that wish mourns Patsy Tombaugh, who died Jan. 12 in Las Cruces, N.M. She was 99.

[Tuesday, December 20, 2011] The Cosmic Origins Spectrograph aboard Hubble has discovered a strong ultraviolet-wavelength absorber on Pluto's surface, providing new evidence that points to the possibility of complex hydrocarbon and/or nitrile molecules lying on the surface

[Tuesday, November 8, 2011] New Horizons remains healthy and on course, now almost two times as far from the Sun as the Earth is, and approaching six years into its 9.5-year journey to the Pluto system.

[Wednesday, October 26, 2011] Astronomers have accurately measured the diameter of the faraway dwarf planet Eris for the first time by catching it as it passed in front of a faint star.

[Monday, September 5, 2011] At this moment one of the fastest spacecraft ever launched -New Horizons - is hurtling at nearly one million miles per day. Launched in 2006, it has been in flight longer than some missions last, and still has four more years of travel to go.

[Saturday, September 3, 2011] The "Eyes on the Solar System" interface combines video game technology and NASA data to create an environment for users to ride along with agency spacecraft and explore the cosmos.

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