How old is the universe? Learn more about the age of the Universe, from it's explosive beginnings to how we on Earth can ...

They observe for the first time the decay of baryons, particles that make up the majority of the matter in the observable ...

Let’s explore this cosmic perspective together. How big is the universe? It’s a question that stirs both wonder and humility.

The horizon of this boundary is about 46 to 47 billion light-years away from the center of the Earth, which means that the observable universe is close to 93 billion light-years across.

For one, scientists observe a "cosmic fossil" called the cosmic microwave background (CMB). The first light that was free to ...

About 70% of Earth’s surface is covered by oceans, and these massive bodies of water typically present more questions than answers — but scientists hope PACE can help change that.

When you ask the question of how distant the absolute farthest thing in the expanding Universe is that we can possible observe is, the answer you arrive at is 46.1 billion light-years away.

NASA’s SPHEREx mission is mapping the entire sky in 102 infrared colors, turning raw space data into a public tool for ...

There’s an edge to the observable universe—we can only see so far out. ... Using telescopes on Earth, we look at light coming from distant places in the universe.

The observable Universe is best thought of as a series of spherical shells, centered around our planet, ... From Earth to Mars is a positively rapid 14 minute round trip on average.

An international team of physicists discovered the largest-ever merger of 2 black holes through a phenomenon known as gravitational waves.