Gravity pulls us to earth, a lesson you learn viscerally the first time you fall. Isaac Newton described gravity as a ...

First discovered in the 1990s, dark energy has come to feel like a familiar face of the cosmos. Astronomers first imagined ...

Last month, a press release announced groundbreaking findings from the Dark Energy Spectroscopy Instrument (DESI), which is installed on the Mayall Telescope in Arizona. This vast survey, containing ...

Astronomers tallying up all the normal matter—stars, galaxies and gas—in the universe today have come up embarrassingly short ...

"The new model can account for both structure formation and stability, and the key observational properties of the expansion ...

Astronomers have long been puzzled by two strange phenomena at the heart of our galaxy. First, the gas in the central ...

Dark Energy 'Doesn't Exist' So Can't Be Pushing 'Lumpy' Universe Apart Dec. 20, 2024 — One of the biggest mysteries in science -- dark energy -- doesn't actually exist, according to researchers ...

Astronomers have long struggled with a troubling puzzle: a significant portion of normal matter in the universe appeared to ...

Last month, the Dark Energy Spectroscopic Instrument (DESI ... Rubin Observatory will hopefully either confirm these string theory findings or set physicists down a different path toward finding ...

Leading this quest is the Dark Energy Spectroscopic Instrument (DESI), a global collaboration involving over 70 institutions.

For decades, astronomers have known something didn’t add up in our universe. The amount of “normal” matter—stars, gas, and ...