Dwarf galaxies often appear to align mysteriously around their host galaxies. A new study proposes an unprecedented explanation. Galaxies like the Milky Way are surrounded by dozens of dwarf galaxies, ...

Our search for exoplanets is focused on Milky Way stars. It's been successful, with more than 6,000 detected so far. Scientists are even beginning to move beyond mere detections, and working on ...

Astronomers at the University of California, Riverside, have discovered that powerful winds driven by supermassive black holes in the centers of dwarf galaxies have a significant impact on the ...

"The main surprise is that these small faint galaxies had so much power, their cumulative radiation could transform the entire universe." When you purchase through links on our site, we may earn an ...

A colossal census of the cosmos has more than tripled the number of active black holes known to reside in miniature galaxies and found the biggest haul of middleweight black holes to date. That’s ...

The distribution of HI hydrogen in the Whirlpool Galaxy (M51) as determined by the THINGS VLA survey extends far beyond the visible stars in the galaxy and its satellite NGC 5195 (marked by cross), ...

A new image from the Hubble Space Telescope shows a small dwarf galaxy called IC 3430 that’s located 45 million light-years away. This galaxy is classified as both a dwarf galaxy, because of its small ...

Things have been a mess since Pluto's demotion. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In 2006, the International Astronomical Union ...

Our solar system is much like a trail of microcosmic breadcrumbs: Follow the molecular bits as far back as they go, and you'll learn a thing or two about where many of our planets and other celestial ...

WASHINGTON, May 30 (Reuters) - Scientists have identified an object about 435 miles (700 km) wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting ...