A long-term survey of small, “satellite” galaxies that orbit larger galaxies across the universe offers new insights into our own galaxy, the Milky Way. Since 2012, the Satellites Around Galactic ...

In space, the gravitational pull of massive objects is irresistible to smaller ones. Moons are locked in orbit around planets. Planets, asteroids and comets orbit more massive stars, and stars collect ...

The supermassive black hole named Sagittarius A* lies in the middle of the Milky Way. Observations of S2 and other stars also helped astronomers calculate the extraordinary size and mass of ...

Researchers led by astronomers at the University of Michigan have discovered the smallest and dimmest galaxy to date that's orbiting the Andromeda system, the Milky Way's nearest major galactic ...

Spiral Galaxy from Kirkland et al. CREDIT Chris Kirkland and colleagues. A new study of zircon crystals from two of Earth’s oldest continents indicates that the formation of Earth’s continental crust ...

The Milky Way looks serene from our vantage point, a hazy river of light arcing across the night sky. Yet the stars that make up that glow are quietly telling a more dramatic story, one in which our ...

A mosaic of the images of 378 satellites across 101 Milky Way-like systems that the SAGA team has surveyed. The satellite images are sorted by their luminosity from left to right. Is our home galaxy, ...

(Nanowerk News) Is our home galaxy, the Milky Way Galaxy, a special place? A team of scientists started a journey to answer this question more than a decade ago. Commenced in 2013, the Satellites ...

Artist’s impression: This photo illustration depicts a view of the night sky just before the predicted merger between our Milky Way galaxy and the neighboring Andromeda galaxy. About 3.75 billion ...