What we saw in the DESI experiments, and now strengthened by our South Pole Telescope observations, is that dark energy is ...

New evidence suggests the universe might not behave as expected, raising questions about the costs of being wrong.

Ever since, it's been thought of as a constant, immutable presence. Now, the latest observations from the Dark Energy Spectroscopic Instrument (DESI) indicate that dark energy has actually changed ...

Researchers unveiled their findings on March 19 as part of a massive new data release from the Dark Energy Spectroscopic Instrument — DESI for short — which has been scanning the sky above the ...

We know black hole mergers occur because we can detect the resulting gravitational waves. But when trying to piece together ...

The earliest light in the universe has been traveling across space since just after the Big Bang. Known as the cosmic ...

The first ever space telescope, the Orbiting Astronomical Observatory 2 (OAO-2), was launched into the low Earth orbit in ...

The Giant Magellan Telescope team explains how the observatory will help solve the mysteries of the cosmos including the search for life.

Slitted Spectroscopy: provides the ability to capture the spectrum of a single object—a single star, a single exoplanet, or a single distant galaxy—in a wide field of view. Single slit spectroscopy is ...

Machine learning can help tighten constraints on the overarchingFor almost as long as humans have existed, we have been trying to make sense of the cosmos. What started as philosophical musing has, ...

Astronomers from the University of Cape Town (UCT) joined global celebrations to mark the first light images of the Legacy ...

In the frozen outskirts of the solar system, a reddish dwarf planet orbits in silence. Known as Sedna, it is so distant that one trip around the Sun takes more than 11,000 years. For much of that time ...