Galaxies

Is the theory at the heart of modern cosmology deeply flawed?

Is there a theory of everything? If so, is it possible to verify via experimentation? These and other questions energized a panel of physicists and their audience at this year's Isaac Asimov Memorial Debate at the American Museum of Natural History

Astronomy buffs know that the European Southern Observatory (ESO), a conglomerate of 15 European countries that operates three observing sites in Chile, is a font of awesome space images .

Researchers find success using a massive distributed computing network to search radio waves for pulsars. In the coming decade they hope to find evidence of gravitational waves

A Parisian astronomer tells how he became the unofficial record keeper of exoplanets and when we'll stop discovering new ones

Rotating black holes should put a spin on the light passing by them, potentially allowing astronomers a new way to gauge their properties

A newfound planetary system has six worlds, five of which rank among the smallest known, and the list of unconfirmed candidates has swelled to four figures

Thanks to amazing nested mirrors, NASA's NuSTAR telescope is set to reveal hidden phenomena in the cosmos

Peering back to just 500 million years after the big bang, researchers have located what looks to be a galaxy in the infant universe

First data release yields 'treasure trove' of information on galaxies -- including our own.

An accidental find in a star-forming dwarf galaxy shows that black holes may mature early in galaxy evolution