The universe’s expansion rate is accelerating. The unknown energy source causing this acceleration is called Dark Energy. Credit: Visualization by Frank Summers, Space Telescope Science…
Posts published in “Dark Energy”
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A team of scientists has predicted the science return from one of NASAEstablished in 1958, the National Aeronautics and Space Administration (NASA) is an independent…
SISSA scientists provide the first simulation of neutron starA neutron star is the collapsed core of a large (between 10 and 29 solar masses) star.…
The Cosmic Microwave Background (left) was released 380,000 years after the Big Bang, and it acts as a background to all galaxies in the Universe.…
A slice through the 3D map of galaxies from the first few months of the Dark Energy Spectroscopic Instrument (DESI). The Earth is at the…
DESI’s three-dimensional “CT scan” of the Universe. The earth is in the lower left, looking out over 5 billion light years in the direction of…
A representation of the evolution of the universe over 13.77 billion years. The far left depicts the earliest moment we can now probe, when a…
The Roman Space Telescope is a NASA observatory designed to unravel the secrets of dark energy and dark matter, search for and image exoplanets, and…
About 25 years ago, astrophysicists noticed something very interesting about the Universe. The fact that it was in a state of expansion had been known…
Dark energy, the mysterious force that causes the universe to accelerate, may have been responsible for unexpected results from the XENON1T experiment, deep below Italy’s…
The presence of ionized gas around galaxies with moves with them leaves a trace in the microwave background radiation (left panel) which can be detected…
Physicists’ new proposal that a new type of extra dark energy is involved is highlighted in scientific journal. The universe was created by a giant…
The Hobby-Eberly Telescope. Credit: Marty Harris, McDonald Observatory, UT Austin The universe we see is only the very tip of the vast cosmic iceberg. The…
A map of the sky showing the density of galaxy clusters, galaxies, and matter in the universe over the part of the sky observed by…
Exploration of the Universe by the SDSS mission during the past two decades (1998-2019). Credit: eBOSS collaboration The extended Baryon Oscillation Spectroscopic Survey (eBOSS) collaboration…
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…
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),…