Long Beach, CA Two new efforts have taken a famous supernova remnant from the static to the dynamic. A new movie of data from NASA's Chandra X-ray Observatory shows changes in time nev...

Long Beach, CA The center of the Milky Way presents astronomers with a paradox: it holds young stars, but no one is sure how those stars got there. The galactic center is wracked with po...

Long Beach, CA Fasten your seat belts -- we're faster, heavier, and more likely to collide than we thought. Astronomers making high-precision measurements of the Milky Way say our Galaxy...

Long Beach, CA The planet Jupiter gained weight in a hurry during its infancy. It had to, since the material from which it formed probably disappeared in just a few million years, accord...

In 1929, Edwin Hubble discovered that galaxies are moving away from us by his observations of their Cepheid stars. Harvard astronomer Henrietta Swan Leavitt had found that a Cepheid star...

Cambridge, MA New computer visualization technology developed by the Harvard Initiative in Innovative Computing has helped astrophysicists understand that gravity plays a larger role tha...

A newly-formed star usually has a disk of gas and dust around it. This disk (the source of possible future planets) can generate intense X-ray radiation as its material falls onto the st...

Eleven years ago this winter two teams of astronomers, one of them led by CfA scientists, astonished the world with their announcement that the universe would expand forever. They soon ad...

Cambridge, MA For the first time, astronomers have clearly seen the effects of "dark energy" on the most massive collapsed objects in the universe using NASA's Chandra X-ray Observatory....

The second brightest object in the sky outside of our solar system is the variable star CW Leo, located about 450 light-years away in the direction of the constellation of Leo (the bright...