Scientists confirm the universe is still expanding faster, refuting a recent challenge that questioned the existence of dark energy.

Here’s one of the most unsettling facts in all of science. The universe is not just expanding, it’s expanding faster and ...

Once charted as a 'guest star' in ancient China, dreaded as a harbinger of ill omens in medieval Europe, and preserved in the ...

A bold claim that the universe’s accelerating expansion was an illusion has been put to the test—and failed. Researchers ...

Type Ia supernovae, those stellar explosions used as landmarks to measure the Universe, might not be as reliable as we ...

The universe is almost 13.8 billion years old, but every now and then, astronomers detect echoes from its distant past. One such occasion occurred earlier in 2025, when NASA scientists reported ...

In recent years, whenever astronomers have gazed into the night sky, they’ve noticed something peculiar: Some of its massive stars—the true titans of the cosmos—appear to be missing. The largest of ...

Stars at the center of the Milky Way galaxy, via the Spitzer Space telescope - credit NASA, JPL-Caltech, S Stolovy (SSCCaltech). Our understanding of the universe remains solid, say astronomers whose ...

Artist’s conception of a magnetar surrounded by an accretion disk that is wobbling, or precessing, because of the effects of general relativity. Some models of magnetars suggest that high-speed jets ...

Using the James Webb Space Telescope (JWST), an international team of astronomers has discovered a new Type II supernova. The newly detected supernova, named SN Eos, exploded when the universe was ...