Another possibility is to look for indirect effects of dark matter particles in our galaxy, or dwarf galaxies surrounding the Milky Way. The main idea underlying this kind of research is the possibility for dark matter to annihilate (or decay) in the interstellar medium, or generally near ...
There are still many mysteries surrounding galaxy formation, but on the next page we'll explain some of the best theories about it. Light-years Away Galaxies are far apart. The Andromeda galaxy, which is also called M31 (Messier object #31), is the closest galaxy to us — 2.2 million...
Webb telescope finds Milky Way black hole never stops strobing light These flares are bright enough to shine across 26,000 light-years of space. 02/22/2025 By Elisha Sauers Hubble sees mini galaxies surrounding Andromeda are pretty wild These galaxy satellites aren't like the ones around ...
et al. Mapping dusty galaxy growth at z > 5 with FRESCO: detection of Hα in submm galaxy HDF850.1 and the surrounding overdense structures. Preprint at https://arxiv.org/abs/2309.04525 (2023). Schaye, J. et al. The FLAMINGO project: cosmological hydrodynamical simulations for large-...
When a supermassive black hole’s gigantic gravitational forces begin to pull and heat surrounding material, they begin emitting energy as either radiation or in jets. Radiative-mode black holes were generally a staple of a young universe, whereas jet-mode versions are more common in the present...
Artist's impression of a "baby" Milky Way-like galaxy in the early universe with a bright quasar shining through the galaxy's surrounding halo of hydrogen gas. Those halos move far beyond the galaxy's star-forming disks, new research suggested.(Image credit: A. Angelich/NRAO/AUI/NSF) ...
The new observations with ESO’s VLT revealed several galaxies surrounding a supermassive black hole, all lying in a cosmic “spider’s web” of gas extending to over 300 times the size of the Milky Way. “The cosmic web filaments are like spider’s...
This galaxy, known as Mrk 820, is classified as a lenticular galaxy. Surrounding Mrk 820 is a slew of other galaxy types from elliptical to spiral.(Image credit: ESA/Hubble & NASA and N. Grogin (STScI), Acknowledgement: Judy Schmidt) ...
is a view of Leo IV and the surrounding neighborhood. The galaxy resides 500,000 light-years from Earth. The dotted line marks the galaxy’s boundaries, measuring about 1,100 light-years wide. The small white box outlines the Hubble Space Telescope’s view. Credit: NASA, ESA, and...
Initially, each individual lump expanded because the whole universe was expanding. However, as the universe continued to expand, the regions of higher density acquired still more mass because they exerted a slightly larger than average gravitational force on surrounding material. If the inward pull of...