University of Arizona researchers are among a group of scientists who hope to discover what happened immediately after the Big Bang, when the universe expanded in a fraction of a ...

The Dark Energy Spectroscopic Instrument (DESI) is mapping millions of celestial objects to better understand dark energy—the ...

New results from the Dark Energy Spectroscopic Instrument (DESI) suggest that the unknown force accelerating the expansion of ...

Cleostratus was a truly pioneering Greek astronomer who lived on the small Aegean island of Tenedos in the 6th century BC.

The largest-ever three-dimensional map of the cosmos, plotting out some 15 million celestial objects, could help reveal the ultimate fate of the universe. Astrophysicists know that the universe is ...

The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.

New data further challenge the best scientific theory of the history and the structure of the universe. But a separate recent ...

The standard model of how the universe works involves the widely accepted theory that dark energy is a fundamental constant ...

Findings from the Dark Energy Spectroscopic Instrument (DESI) suggest that dark energy could be evolving over time. If ...

Astronomers rely on clear observations to study celestial objects, but cosmic dust alters what we see, making stars appear ...

Voluminous clouds of cosmic dust permeate our galaxy, but only recently has software allowed detailed observations of the ...

It’s winter, but birch trees have sprouted in Schaeffer Theatre — crafted by stage manager Sophie Hafter '25, whose scenic artistry helps "The Seagull" glide between realism and the avant-garde.