The expansion of the universe was discovered by separate theoretical and observational work in the 1920s. Since then, the expansion has become a core aspect of the astrophysical field of cosmology. …

Nov 10, 2025 · Scientists have long held that the universe is expanding at an ever-increasing rate, driven by a mysterious but measurable force known as dark energy.

Jan 23, 2026 · Scientists have been gifted with a clearer picture of the expansion of the universe and dark energy, the mysterious force driving the acceleration of this expansion, than ever before. This …

Oct 14, 2025 · Unlike a balloon expanding into surrounding air or bread rising in an oven, the universe doesn’t expand into anything—space itself stretches, carrying galaxies along while creating more …

Nov 11, 2025 · We discovered that the universe is not static but expanding — stretching, evolving, and changing over time. This realization transformed cosmology from a philosophical idea into a …

Jan 28, 2026 · Due to the expansion of the universe that is driven by dark energy, discussion of physical distances and “years ago” becomes tricky when looking this far.

Dec 5, 2025 · Coined by astronomer Edwin Hubble, who first calculated it in 1929, the Hubble Constant is the rate at which the universe expands. This number reveals not only the universe’s current speed …

Jan 25, 2026 · Cosmology - Expansion, Universe, Big Bang: When the universe is viewed in the large, a dramatic new feature, not present on small scales, emerges—namely, the cosmological expansion.

2 days ago · Scientists predict the expansion of the universe using Finsler gravity and highlight the limits of using just one model By EMILIA ROSE — science@theaggie.org Where is the center of the …

Dec 15, 2025 · Big Bang science explains the universe origin, key evidence, unresolved tensions, and how new James Webb data is reshaping cosmic history.