New simulations of Milky Way-like galaxies reveal that the strange split between two chemically distinct groups of stars may ...

How can a galaxy display perfectly defined spiral arms when the Universe had only a little over 10% of its current age? This ...

The Large and Small Magellanic Clouds are irregular dwarf galaxies and satellites of the Milky Way. The LMC is about 163,000 ...

A surprisingly mature spiral galaxy named Alaknanda has been spotted just 1.5 billion years after the Big Bang—far earlier ...

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 ...

New simulations reveal that the Milky Way’s odd split between two chemically distinct groups of stars isn’t a universal ...

Clues about how galaxies like our Milky Way form and evolve and why their stars show surprising chemical patterns have been ...

The galaxy's discovery challenges our understanding of how galaxies were formed in the early period after the Big Bang.

The team found only a 2 percent probability that the galaxies will collide in the next five billion years. In slightly over half of the simulated scenarios, Andromeda and the Milky Way experience at ...

Clues about how galaxies like our Milky Way form and evolve and why their stars show surprising chemical patterns have been ...

The dark matter distribution of a Milky Way mass halo in a Lambda-cold dark matter (LCDM) cosmological simulation. This is the highest resolution simulation of a MW-mass dark matter halo ever ...

A research team led by physicists at the University of California, Riverside, reports tiny satellite galaxies of the Milky Way can be used to test fundamental properties of “dark matter” — nonluminous ...