President-elect Donald Trump was blocked by his wife's hat when he leaned in for a kiss before his swearing in on Jan. 20.

Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New ...

New evidence suggests the universe is expanding faster than predicted. Explore the Hubble constant and its implications for ...

The Universe is expanding faster than ever, and recent findings fuel the ongoing debate among cosmologists. For decades, ...

This is called the “heat death” of the Universe, but you can think of it instead as the death of heat. There will be no more ...

New measurements show that the expansion rate of the universe is faster than can be explained by our current understanding of ...

Ultra-faint dwarf galaxies, cosmic 'ghost towns,' offer new insights into the early universe and star formation.

Found less than a billion years after the Big Bang, these massive objects are upending astronomers’ timeline for how early ...

The Universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous -- and highly debated -- results had shown: The Universe is expanding faster than predicted by ...

Astronomers compile a large sample of an unusual class of objects in an effort to connect the dots to the early universe.

New research confirms the Universe is expanding faster than theoretical models predict, intensifying the Hubble tension.

Interactions between dark matter and dark photons during a "missing chapter" cosmic history could shed light on one of the ...