The observable universe is the portion of the cosmos that we can see or detect from Earth, limited by the speed of light and ...

Researchers have unveiled a new model for the universe’s birth that replaces cosmic inflation with gravitational waves as the ...

Human activity may be triggering the greatest extinction event since the asteroid impact that wiped out the dinosaurs, ...

From the speed of light to the size of galaxies, the universe operates on scales far beyond human intuition. Even at 186,000 ...

In 1992, three physicists began an argument about how many numbers we need to fully describe the universe. Their surprisingly ...

The race is on to harness the near-infinite power of nuclear fusion—by building a star on Earth. And scientists are closer ...