In this video, we delve into the Big Bang Theory, which explains the origin and expansion of the universe. This theory suggests that about 13.8 billion years ago, all matter and energy were ...

The beauty of the 2026 calendar is its truly global reach, offering backdrops that range from coastal wilderness to ancient salt flats. Track the Milky Way from the shores of Urug ...

A “disappearing” star in the Andromeda galaxy is the closest and best candidate for a newborn black hole that astronomers have ever seen ...

For nearly a century, astronomers have known that the universe is expanding. Most galaxies are carried outward with the flow ...

Physicist Sean Carroll explains how physics, astronomy, philosophy, and classics all help us understand the expanding ...

A new study suggests that dark matter may consist of particles with different masses. By introducing a two-component self-interacting dark matter model, the researchers show that both the low-density ...

According to general relativity, gravity is the distortion of spacetime. Heavyweight cosmic entities like stars or galaxies ...

Galaxies are massive, far exceeding the size of the one depicted in the movie “Men in Black.” These celestial bodies span ...

The standard cosmological model (present-day version of "Big Bang," called Lambda-CDM) gives an age of the universe close to 13.8 billion years and much younger when we explore the universe at ...

The existence of massive, elliptical galaxies in the early universe has puzzled astronomers for two decades. An international ...

Dark matter doesn’t seem to interact with the matter we can see and touch, so scientists look for it in unusual places, like ...

Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields ...