Cambridge, MA Astronomers announced today that the first Pan-STARRS (Panoramic Survey Telescope & Rapid Response System) telescope, PS1, is fully operational. This innovative facilit...

CH Cyg is a binary star system containing a white dwarf that feeds from the wind of a red giant star. The material from the wind forms a hot accretion disk around the white dwarf before c...

Io is one of the four moons of Jupiter that Galileo discovered after he turned his new telescope heavenward. They shocked him and his contemporaries because they demonstrated that heavenl...

Bok globules are small interstellar clouds of very cold gas and dust that are so thick they are nearly totally opaque to visible light, although they can be studied with infrared and radi...

Have you ever wondered how we find alien worlds? Whether E.T life exists? What happens if you fall into a black hole? CfA astronomers give their thoughts on these questions and more at th...

A Cepheid star is one whose mass and age results in physical conditions that generate periodic oscillations in its photosphere. A Cepheid thus varies regularly in brightness, with a peri...

Miami, FL For over 10 years, NASA's Chandra X-ray Observatory has repeatedly observed the Andromeda Galaxy for a combined total of nearly one million seconds. This unique data set has gi...

Our Milky Way galaxy, like other spiral galaxies, has copious amounts of dust in its spiral arms. The dust absorbs starlight, thereby blocking our optical views, but at the same time it ...

Astronomers, like physicians, use as much of the electromagnetic spectrum as they can, from X-ray to radio wavelengths, to examine their subjects the with the most suitable diagnostics. F...

Dr. Roger Brissenden, Associate Director for High Energy Astrophysics at the CfA, and Program Manager for the Chandra X-ray Center at the Smithsonian Astrophysical Observatory, has been a...