The most precise measurement yet of how fast the Universe is expanding shows we have a real and serious problem on our hands.

The Dark Energy Spectroscopic Instrument (DESI) has completed its originally planned five-year mission, mapping more than 47 ...

The Dark Energy Spectroscopic Instrument (DESI) has completed its originally planned five-year mission and mapped more than ...

Two University of Arizona faculty members have been awarded prestigious 2026 Guggenheim Fellowships: Award-winning playwright ...

Sketch of the sunspot by Johannes Kepler without using a telescope. Credit: Kepler. In 1607, Johannes Kepler projected an ...

From the Moon's far side to a backyard smart telescope. Here are the stunning images of NASA's Artemis II Mission from Earth.

What causes autoimmune disease? A new study finds that somatic mutations in immune checkpoint genes like PDL1 trigger the ...

New research suggests that autoimmune diseases may be driven by DNA mutations in immune cells that remove the natural brakes ...

Next summer, Balmer will continue these inquiries as they and their Northwestern host, Assistant Professor Jason Wang, plan ...

For several days this month, Saturn, Mars, and Mercury appear just degrees apart before sunrise—close enough to watch their ...

Astronomers have nicknamed the HD 61005 star system the “Moth” because it is surrounded by dust patterned similarly to the ...

Stargazers looking for more to do in April have a few more things coming, including a planet parade where four planets -- ...