NASA's Nancy Grace Roman Space Telescope has launched to study dark matter, dark energy, and exoplanets with its advanced infrared vision and wide field of view.
NASA's Nancy Grace Roman Space Telescope is set to launch, offering a field of view 100 times larger than Hubble's while maintaining similar detail, enabling broad cosmic surveys and exoplanet imaging.
The universe's expansion can cause distant galaxies to recede faster than light, a phenomenon that does not violate Einstein's theory of relativity because it involves the stretching of space itself, not the movement of objects through space.
A theoretical study suggests that dying stars might create new universes powered by dark energy, forming gravastars instead of black holes.