Astronomers using new submillimeter wavelength telescopes discovered, about a dozen years ago, the existence of a new class of very distant galaxies. These objects are located so far away...

The American Association for the Advancement of Science has awarded the SCIENCE Prize for Online Resources (SPORE Award) to the CfA's "The Habitable Planet: A Systems Approach to Environm...

Cambridge, MA When a star explodes as a supernova, it shines so brightly that it can be seen from millions of light-years away. One particular supernova variety - Type Ia - brightens and...

Dr. Harvey Tananbaum, director of the Chandra X-ray Center, has been selected as the recipient of the 2010 Massey Award for his career accomplishments in high-energy astrophysics in space...

The universe created in the big bang was predominantly made of hydrogen - about 75% by mass; the remainder of the matter was in the form of helium with some small traces of other light el...

(Written by Christine Pulliam, Smithsonian Astrophysical Observatory, for Science at the Smithsonian, a website featuring highlights of scientific research at the Smithsonian Institution....

A Rydberg atom is one with an electron that spends most of its time far from the nucleus. Rydberg atoms, which are normally artificially produced, can have dimensions thousands of times...

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...