The article explores several potential scenarios for the end of the universe, including heat death, the Big Rip, the Big ...

The observable universe is a ball-shaped region of the universe comprising ... No signal can travel faster than light, hence there is a maximum distance (called the particle horizon) beyond which ...

While parallel universes are a staple of science fiction, there are some real scientific theories to support them. But if ...

Beyond this protective layer lies space ... suggesting a finite yet unbounded structure. The observable universe—the part of space we can study—is limited by the speed of light and the ...

According to a tenet scientists call the cosmological principle, our place in space is in no way exceptional. But recent observations could overturn this long-held assumption ...

Beyond this point lies the cosmic microwave background radiation, the oldest light in the Universe, emanating from about 380,000 years after the Big Bang. While the observable Universe has ...