These satellites provide crucial tests for theories about dark matter, cosmic reionization, and galaxy formation ... the history of Andromeda’s satellites. JWST’s advanced infrared ...

A Michigan State University researcher saw X-rays coming from a black hole using the NASA Chandra X-Ray Observatory telescope ...

With its origins tracing back to the 1970s, the Hubble Space Telescope was launched aboard the space shuttle Discovery on ...

The disk of the Andromeda Galaxy (M31) is targeted by a single DESI pointing, represented by the large, pale green, circular overlay. The smaller circles within this overlay represent the regions ...

The Andromeda galaxy is surrounded by a constellation of dwarf galaxies that are arranged in a highly lopsided manner. Analysis of cosmological simulations published in Nature Astronomy reveal that ...

The dust rings of the Andromeda Galaxy stand out in this infrared image taken by the Spitzer Space Telescope. Astronomers have discovered even brighter infrared galaxies that have inspired some ...

Astronomers at the University of Michigan have discovered a new satellite of the Andromeda Galaxy (M31), the Milky ... McConnachie; Image Processing: Marcos Arias) The puzzle is why most Milky ...

The “fossil” galaxy that the team discovered has a high concentration of old star... American space agency NASA on Sunday shared the "largest-ever" image assembled of the Andromeda galaxy by ...

This is a wide-angle view of the distribution of known satellite galaxies orbiting the large Andromeda galaxy ... galaxies are on image right. The most prominent dwarf galaxy is M32 (NGC 221 ...

The smallest, dimmest galaxy orbiting Andromeda to date. Image: CFHT/MegaCam/PAndAS (Principal investigator: Alan McConnachie; Image processing: Marcos Arias A group of astronomers has discovered ...