How fast is the universe expanding? This is what a recent study published in The Astrophysical Journal hopes to address as a ...

See asteroid Dimorphous, pre- and post-impact, in this time-lapse of Hubble Space Telescope imagery. The space rock was ...

Astronomers have revealed that our Milky Way galaxy has a 50/50 chance of colliding with its massive neighbor, the Andromeda ...

Dozens of NASA's missions to explore the cosmos could be in jeopardy under a budget proposal from the Trump administration.

Dozens of NASA's spaceflight missions that launched from Florida could be in jeopardy under a budget proposal from the Trump ...

This NASA/ESA Hubble Space Telescope image features a luminous tangle of stars and dust called the barred spiral galaxy NGC ...

Webb takes a closer look at Abell S1063, a distant galaxy cluster that acts like a cosmic lens, peering into the universe’s ...

James Webb telescope helped solve a decade-long mystery about the universe’s expansion rate, shedding new light on the cosmic ...

NASA Goddard Space Flight Center's Dr. Jennifer Wiseman explains the Hubble Space Telescope's view of the Pillars of Creation ...

A dam Riess was 27 years old when he began the work that earned him the Nobel Prize in Physics, and just 41 when he received ...

Scientists have long puzzled over a discrepancy in how fast the universe is expanding, but new, sharper data from the James ...

Astronauts Steven Smith and John Grunsfeld, appear as small figures in this wide-angle photograph from December 1999, taken ...