Skip to main content

An Efficient Star Making Galaxy

Submitted by idfive on
New stars regularly appear in the night sky as the gas and dust in giant interstellar clouds gradually coalesce under the influence of gravity. The process of making stars, however, is i...

Measuring Galaxy Evolution with Globular Clusters

Submitted by idfive on
Globular clusters are gravitationally bound ensembles of stars, as many as a million stars in some cases, grouped in roughly spherical clusters with diameters as small as only tens of lig...

Cosmic Bumps on Cosmic Ripples

Submitted by idfive on
In 1969, the astrophysicists Rashid Sunyaev and Yakov Zel'dovich realized that the then recently discovered cosmic microwave background radiation (CMBR) would be distorted by hot cosmic g...

BICEP: From the South Pole to the beginning of time

Submitted by idfive on
It's a little known fact that three-quarters of a mile from the South Pole lie some of Earth's most powerful telescopes. Operated all year round, they are engaged in one of the great scie...

Nanodust Particles in the Interplanetary Medium

Submitted by idfive on
Dust particles smaller than about a wavelength of light are abundant in our solar system, created by collisions between asteroids and from the evaporation of comets. As they scatter sunli...

Where Do Stars Form in Merging Galaxies?

Submitted by idfive on
Collisions between galaxies, and even less dramatic gravitational encounters between them, are recognized as triggering star formation. Observations of luminous galaxies, powered by star...
Subscribe to