Tag Archives: satellite galaxies

James Webb Space Telescope sees ancient black hole dancing with colliding galaxies

Astronomers using the James Webb Space Telescope (JWST) have observed the dramatic “dance” between a supermassive black hole and two satellite galaxies. The observations could help scientists better understand how galaxies and supermassive black holes grew in the early universe. This particular supermassive black hole feeds off of its surrounding matter, powering a bright quasar… Read More »

Scientists finally found 2 of the Milky Way’s missing satellite galaxies. What could this mean for astronomy?

Astronomers have discovered two new satellite galaxies of the Milky Way, and the findings could help us better understand dark matter. Dark matter is the mysterious substance that makes up about 85% of the matter in the universe but is effectively invisible to us. The discoveries also bring scientists one step closer to solving an… Read More »

Movement of galaxies suggests universe may be younger than we thought

The universe may be younger than we thought, based on the movements of satellite galaxies, revealing how recently they have been included in a galaxy group. According to the measurements made cosmic microwave background radiation by (SPK) European Space AgencyPlanck mission, The universe is approximately 13.8 billion years old. This calculation is based on what… Read More »