So, to create a must-read story list for you, we asked our staff to select their favorite pieces of 2025. Alas, while you're ...

While surveying distant worlds beyond our solar system, researchers unexpectedly obtained the first direct images showing ...

Dark energy is the mysterious force thought to be accelerating the universe. . But a new study hints that scientists may have ...

A new study questions dark energy's role in the universe's acceleration, suggesting it may be weakening instead.

One story rose above all the others — new and older telescopes are putting us on the cusp of monumental discoveries about our universe.

A mysterious force called Dark Energy might be changing, in a way that challenges our current understanding of the nature of ...

The expansion of the universe was not accelerating but was rather slowing down and at a rate much faster than expected, a new ...

The vast, silent void between the stars occasionally coughs up a visitor that sets the scientific world—and the ...

Learn why the Sun’s magnetic field is just as important as Earth’s and its impact on our planet.

From new exoplanetary neighbors and a weakening dark energy to the best evidence for life on Mars and an interstellar comet ...

On record 2025 as one of the most amazing years in contemporary astronomy, providing findings that would turn our collective ...

Nancy Grace Roman, the boundary-breaking astronomer and NASA executive who was a tireless advocate for the Hubble Space Telescope, died on December 25 at the age of 93. Often called “the mother of ...