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15 Octubre 2002: An unobtrusive arc of blue stars stretching above the iconic galaxy Centaurus A represents the lingering signature of an episode of galactic cannibalism that is surprisingly recent and, astronomically speaking, quite nearby.

3 Junio 2002: Aided by the distorted shape of the stars in normally faint binary systems called Soft X-ray Transients, an astronomer at the University of California-San Diego has determined that two nearby black holes each have a mass no larger than a handful of stars like our Sun.

10 Enero 2002: A new color image of the nearby irregular galaxy NGC 6822 shows a myriad of hot blue massive stars and several famous nebulae in impressive detail.

14 Agosto 2001: Astronomers using the National Science Foundation's Blanco Telescope in Chile have used the distorting effects of a weak gravitational lens to discover and locate a dim cluster of at least 15 galaxies at a significant distance from Earth, using only the mass properties of the cluster, not its visible light.

2 Julio 2001: Astronomers from Lowell Observatory, the Massachusetts Institute of Technology, and the Large Binocular Telescope Observatory have discovered an icy planetary body orbiting the Sun beyond Neptune in the Kuiper Belt roughly equal in size to Pluto’s moon Charon.

11 Enero 2001: A sharply detailed image of the northwest portion of the Andromeda galaxy, M31, demonstrates the power of an on-going sky survey project sponsored by the National Optical Astronomy Observatory (NOAO).

8 Enero 2001: The National Optical Astronomy Observatory's Deep Wide-Field Survey marks its first release of data today with a large, exhibit-sized image of 300,000 faint galaxies and stars at the opening of the 197th meeting of the American Astronomical Society.

17 Diciembre 1998: The discovery of the acceleration of the universe by two teams of astronomers using the National Science Foundation's (NSF) National Optical Astronomy Observatories (NOAO) was named by the journal Science as the top scientific research advance of 1998.

21 Abril 1998: Two teams of astronomers searching for signs of other solar systems with telescopes in Chile and Hawaii have independently discovered a disk around a nearby star that may be forming--or may have already formed--planets.