Earth and our entire Milky Way galaxy may sit inside a mysterious giant hole which makes the cosmos expand faster here than in neighboring regions of the universe, astronomers say.

Pluto will reach its closest approach to Earth and align opposite the Sun on July 25, appearing slightly brighter (magnitude ...

By imagining Earth at the center of a celestial sphere, he used a coordinate system similar to latitude and longitude, which had recently been devised, to measure the precise positions of the stars.

Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show opening to the public on Monday. At the American Museum of Natural History last fall ...

At the American Museum of Natural History last fall, experts were hard at work preparing “Encounters in the Milky Way," a deep dive into our home galaxy shaped by the movements of stars and other ...

Science News: NASA's Solar Dynamics Observatory captured a rare partial solar eclipse in April, unobservable from Earth, where the moon obscured 23% of the sun. The ...

Las Vegas students from elementary schools to UNLV competed to have their Earth Day-themed artwork displayed on the massive Sphere's Exosphere. Eight lucky winners got their wish on April 22.

So, as a vast 10 billion light-year structure of galaxies located around 10 billion light-years away (as indicated by dense GRBs clustering toward the northwestern region of the celestial sphere ...

Here’s a simple question: What’s a moon? As with so many questions in science, it may seem straightforward but truly isn’t. “Why, a moon is a celestial body that orbits a planet,” you ...

NASA's newest space telescope has launched into orbit on a mission to unlock some of the deepest mysteries of our universe. Late Tuesday evening, the southern California coastline was lit up by ...

The secret is in the particular combination of celestial bodies enclosed by a Dyson sphere or ring, because the addition of other sources of local gravity can stabilize it.

NASA's SPHEREx observatory is now in space for a two year year mission to create a 3D map of the entire celestial sky. The telescope left the ground on top of a Falcon 9 rocket from a launch pad ...