Press Releases 2007

28 November 2007: A dwarf star with a surprisingly magnetic personality and a huge hot spot covering half its surface area is showing astronomers that life as a cool dwarf is not necessarily as simple and quiet as they once assumed.

14 November 2007: Astronomers have found evidence for the formation of young rocky planets around the star HD 23514 located in the well-known Pleiades (Seven Sisters) star cluster that is easily visible in the current evening sky.

17 July 2007: Frigid geysers spewing material up through cracks in the crust of Pluto’s companion Charon and recoating parts of its surface in ice crystals could be making this distant world into the equivalent of an outer solar system ice machine.

30 May 2007: The coolest-known star-like object beyond the solar system is giving astronomers a new look at the differences between massive planets and the smallest brown dwarfs. This newly discovered object, called ULAS J0034-00 and located in the constellation Cetus, has a record-setting surface temperature of 600-700 K, cooler than any known solitary brown dwarf. In addition, it’s a relative lightweight, with an estimated mass of only 15-30 times that of Jupiter (although they both have about the same diameter).

28 May 2007: The GLOBE at Night 2007 citizen-science campaign generated nearly double the number of measurements of the world’s dark (and not so dark) skies compared to its first year. The program also successfully demonstrated a prototype digital data-collection effort that aims to grow to a global scale by 2009 during the International Year of Astronomy.

16 May 2007: A dynamic image of the nearby star-forming region NGC 1333 taken at Kitt Peak National Observatory is being released today in honor of the retirement celebration for Stephen Strom, a two-time staff member of the U.S. national observatory who has led a multifaceted life in astronomy, public policy, and the arts.

4 April 2007: Astronomers have serendipitously discovered a record-breaking pair of low-mass objects with an extreme orbital separation. The petite objects, each of which has a mass less than 100 times that of Jupiter and could be either stars or brown dwarfs, are separated by more than 5,000 times the distance between the Sun and Earth – a value that breaks the previous record by a factor of three and leaves the duration of their future together uncertain.

22 March 2007: An image released today by the Gemini Observatory brings into focus a new and remarkably detailed view of supersonic "bullets" of gas and the wakes created as they pierce through clouds of molecular hydrogen in the Orion Nebula. The image was made possible with new laser guide star adaptive optics technology that corrects in real time for image distortions caused by Earth's atmosphere.

21 March 2007: Astronomer Buell T. Jannuzi has been named to five-year term as the director of Kitt Peak National Observatory near Tucson, Arizona.

7 March 2007: The international star-counting activity known as GLOBE at Night returns from March 8-21 in two flavors: the “classic” GLOBE at Night exercise that anyone can have fun doing with their unaided eyes, and a new effort to obtain precise measurements of urban dark skies using digital sky-brightness meters.

21 February 2007: A beautiful new image of spiral galaxy IC 342 that takes advantage of the dark night sky at Kitt Peak National Observatory is being released today in Washington, DC, at the opening of “The Night: Why Dark Hours Are So Important,” a two-day symposium hosted at the Carnegie Institution.

8 January 2007: Astronomers have announced the discovery of huge quantities of an unusual variety of oxygen in two very rare types of stars. The finding suggests that the origin of these oddball stars may lie in the physics behind the mergers of white dwarf star pairs.

8 January 2007: Fundamental to theories describing active galactic nuclei (AGN) is the prediction that a doughnut-shaped ring of material (a torus) surrounds a supermassive black hole in these energetic galactic cores. Yet, understanding an AGN's torus, or indeed seeing one directly, has proved to be extremely frustrating, and has spurred an ongoing debate about their extent and physical properties.

7 January 2007: The ghostly blue Bubble Nebula and a swan-like dark nebula known as Barnard 163 are featured in beautiful new images taken in 2006 using the Mayall 4-meter telescope at Kitt Peak National Observatory. The newly released images are displayed in large format at the NOAO exhibit booth starting today in Seattle at the 209th meeting of the American Astronomical Society.

7 January 2007: Astronomers studying highly energetic binary stars called polars have obtained the first observational evidence that the intense magnetic fields produced by the white dwarf half of the interacting pair can induce flares, sunspots and other explosive activity in its otherwise low-wattage, low-mass partner.

5 January 2007: Google has joined a group of nineteen universities and national labs that are building the Large Synoptic
Survey Telescope (LSST).