Our journey to comprehend the Universe’s edge begins with the concept of the observable Universe. This term refers to the portion of the cosmos that we can theoretically detect from Earth.

Researchers mapped a far-infrared landscape brimming with nearly 2,000 galaxies. There may be "hidden galaxies" lurking just ...

The JWST's first deep-field image, depicting galaxy cluster SMACS 0723, is among the deepest and sharpest images of the night sky ever captured. Credit: NASA, ESA, CSA, STScI "Space is big.

Experts have unveiled the most detailed images yet of the universe’s infancy, capturing light that traveled for more than 13 ...

If dark energy is weakening, it stands to reason that eventually gravity will become dominant and the universe will begin to ...

The spins of some early galaxies could be a clue that the entire observable universe exists within a black hole—except, that ...

Can scientists build a detector of near-Earth objects that would sense gravitational waves produced by any "dark" objects ...

What if we spend decades building advanced telescopes to search for life on other planets and come up emptyhanded? A recent study exploring what we can learn about life in the universe -- even if we ...