If you look across space with a telescope, you’ll see countless galaxies, most of which host large central black holes, ...

Understanding how the universe transitioned from darkness to light with the formation of the first stars and galaxies is a key turning point in the universe's development, known as the Cosmic Dawn.

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Scientists working with the James Webb Space Telescope discovered three unusual astronomical objects in early 2025, which may ...

(CNN) — New hints from one of the most extensive surveys of the cosmos to date suggest that mysterious dark energy may be evolving in ways that could shift how astronomers understand the universe.

Pt. I, Stars, planets, and life : -- The size and scale of the universe -- From the day and night sky to planetary orbits -- Newton's Laws -- How stars radiate energy (I) -- How stars radiate energy ...

WASHINGTON (Reuters) - New data involving millions of galaxies and luminous galactic cores is providing fresh evidence that the enigmatic and invisible cosmic force called dark energy - responsible ...

"This is a unique opportunity to learn how the universe's first light emerged from the darkness." Astronomers could use specific radio signals from the universe's earliest epoch to "weigh" the first ...

Massive stars do not live long. There are several candidates for the biggest star in the universe. One of them, VY Canis Majoris, is over 1,500 times the width of the sun. If it were placed in our ...