Tag: galaxies
Reconstruction of the movements of galaxies for 11.5 billion years
Retracing the path traveled by galaxies since the Big Bang is not easy. Because they are not guided simply by expansion. Gravity also comes into play. And researchers have managed…
A pair of supermassive black holes are said to have carved out giant cavities in a cluster of galaxies
Chandra’s x-ray observations in space and radio observations from Karl G. Jansky Very Large Array (VLA) and EVN on Earth show huge cavities carved into the plasma at the center…
One in five galaxies in the Universe is believed to be hiding behind cosmic dust
Thanks to increasingly efficient telescopes, we are now able to detect primitive galaxies hitherto barely visible because they are hidden behind a thick curtain of cosmic dust. Scientists estimate that…
Dwarf galaxies around the Milky Way shine a light on its complex past
On the sidelines of the Gaia mission, American researchers found, by studying the dwarf galaxies orbiting the Milky Way, that the majority of these galaxies had only recently arrived in…