Most of the universe is made up of dark matter and dark energy. The majority of everything else is dispersed throughout space ...

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 ...

In the dense environment of the early universe, dark matter particles would collide with, and annihilate, each other, ...

Depending on how you look at it, the universe might not have an "end," after all. Whether the universe will "end" at all is ...

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 ...

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 ...

Physicists including Robert H. Dickle and Fred Hoyle have argued that we are living in a universe that is perfectly fine-tuned for life. Following the anthropic principle, they claimed that the only ...

(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.