The journey of Earth’s radio signals began over a century ago, following the first intentional broadcast by Reginald Aubrey ...

Astronomers recently discovered a never-before-seen celestial phenomenon hiding in our own cosmic backyard. The mystery object, located just a short 15,000 light-years from Earth in our Milky Way ...

Scientists measured mass and distance of free floating planet drifting through space without star for first time.

The Milky Way is a spiral galaxy containing 100-400 billion stars. Planet Earth sits along one of the galaxy’s spiral arms. Though the Milky Way is generally always visible from Earth, certain times ...

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. Their theory is a ...

While the Milky Way is generally always visible from Earth, certain times of year are better for stargazers to catch a glimpse of the band of billions of stars comprising our galaxy. Two locations in ...

This NASA/ESA Hubble Space Telescope image features the spiral galaxy Messier 77, also known as the Squid Galaxy. Everything on Earth, in our solar system, our galaxy, and beyond is contained within ...

But the stellar halo, as this roughly ball-shaped, less dense grouping of stars is called, stretches the limits of the Milky ...

Our galaxy, the Milky Way, is home to multiple wonders. There is our biggest star, VY Canis Majoris, the column-like structures known as the Pillars of Creation, and, in the middle of it all, a ...

What made the pulses puzzling to the astronomers was that they came in the form of both radio waves and X-rays. The discovery marks the first time that such objects, called long-period transients, ...