The universe is expanding, and it expands a little faster all the time. Scientists call the speeding up of this expansion cosmic acceleration. This growth…
Posts published in “Dark Energy”
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Sky distribution of the latest DESI imaging data release from the website of the DESI imaging legacy surveys. The enlarged image is part of the…
Elliptical galaxies are generally characterized by their relatively smooth appearance when compared with spiral galaxies (one of which is to the left), which have more…
The Hobby-Eberly Telescope at dusk. The flags of the four partner institutions fly with the U.S. flag outside the open dome. Credit: Ethan Tweedie Photography…
As the light of the cosmic microwave background emitted 13.8 billion years ago (left image) travels through the Universe until observed on Earth (right image),…
The RAMSES simulation code is a numerical code for astrophysics and cosmology. It is based on an adaptive mesh refinement computing technique. The figure illustrates…
A GEODE scenario does not change standard formation of structure in the Universe. Universe grows from left to right. Blue regions correspond to matter. GEODEs…
For just the second time ever, astrophysicists have spotted a spectacular flash of ultraviolet (UV) light accompanying a white dwarf explosion. An extremely rare type…
DESI was mounted on the 4-meter Mayall Telescope at Kitt Peak National Observatory. Kitt Peak National Observatory (KNPO) is located 56 miles southwest of Tucson,…
The values of the energy density of matter (Ω_m) and dark energy (Ω_Λ) in the Universe measured from different cosmological data. Credit: Seshadri Nadathur A…
Data of the Southern Sky taken from the Dark Energy Camera in Chile is helping scientists increase their understanding of what dark energy is and…
The Dark Energy Survey uses the Blanco 4-meter telescope at the Cerro Tololo Inter-American Observatory in Chile, seen here. A paper analyzing the first data…
The fact that our Universe is expanding was discovered almost a hundred years ago, but how exactly this happens, scientists realized only in the 90s…
DESI’s 5,000 spectroscopic “eyes” can cover an area of sky about 38 times larger than that of the full moon, as seen in this overlay…
Two University of Hawaiʻi at Mānoa researchers have identified and corrected a subtle error that was made when applying Einstein’s equations to model the growth…
This is the atom interferometer. Credit: Imperial College London An experiment to test a popular theory of dark energy has found no evidence of new…
A study using Chandra, XMM-Newton and Sloan Digital Sky Survey (SDSS) data suggests that dark energy may have varied over cosmic time. This artist’s illustration…