Water is critical to human life, but also plays an important role in the life of stars and their planetary systems. As a gas, water helps to cool collapsing clouds of interstellar materi...

Final update, Aug. 6, 11:00 a.m. EDT - Looks like our chances for additional aurora activity are zero. Although the Boston area didn't get any nice aurorae, plenty of other folks did. The...

Cambridge, MA Sky viewers might get to enjoy some spectacular Northern Lights, or aurorae, tomorrow. After a long slumber, the Sun is waking up. Early Sunday morning, the Sun's surface e...

Gamma rays are the most energetic form of light. They are typically produced in four ways: in extremely hot regions (temperatures of more than about 100 million degrees), when very fast ...

Cambridge, MA A hundred million years ago, a triple-star system was traveling through the bustling center of our Milky Way galaxy when it made a life-changing misstep. The trio wandered ...

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

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...