A strange energy source at the center of the Milky Way may be a new type of dark matter. Scientists found that hydrogen gas ...

When we observe distant celestial objects, there is a possible catch: Is that star I am observing really as reddish as it ...

The Big Wheel, discovered using the James Webb Space Telescope, formed just 2 billion years after the big bang - surprisingly ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Over the past ...

Over the past decade, scientists have detected a puzzling phenomenon: radio pulses coming from within our Milky Way galaxy that would pulse every two hours, like a cosmic heartbeat. The long radio ...

The movie is a telling look at the way we live now, when the gap between those struggling to pay the rent and those who are ...

The Milky Way is one of the biggest in the observable universe: Even if you traveled at the speed of light, it would take 100,000 years to go from one end of our home galaxy to the other.

Zhang and Green turned to data from ESA’s Gaia mission, which was a 10.5-year-effort to obtain extremely accurate measurements of positions, motions and additional properties for more than a billion ...

We know that Sagittarius A* (Sag A*), the black hole at the center of our Milky Way galaxy, is supermassive and rotates rapidly, dragging space-time along with it. And this small detail—its rotational ...