The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, ...

NASA has plans to return astronauts to the lunar surface in the near future. Next year, four astronauts will orbit the moon. "We don't need to go back to the moon just for the moon. We're going back ...

Space looks very dark from Earth. But does the solar system, and the universe for that matter, have an area that's the darkest of all?

Mysterious dark matter could slosh over our planet like a wave. If it does, it may produce telltale radio waves in Earth's atmosphere, new theoretical research suggests. When you purchase through ...

(CNN) — A revolutionary new satellite that will provide an unprecedented look at Earth’s microscopic marine life and tiny atmospheric particles has launched. The NASA PACE, or Plankton, Aerosol, Cloud ...

The search for the universe’s center starts with a simple intuition: if everything exploded outward in the Big Bang, there must be a point it all came from. Modern cosmology turns that intuition ...

Earth's day used to be five hours shorter, and it's predicted to continue lengthening over time. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.