Tag

3d Map

All articles tagged with #3d map

Cosmic Census Reaches New Depths: DESI Unveils the Largest 3D Map, Hinting Dark Energy Might Evolve
science1 month ago

Cosmic Census Reaches New Depths: DESI Unveils the Largest 3D Map, Hinting Dark Energy Might Evolve

The Dark Energy Spectroscopic Instrument (DESI) has produced the universe’s largest 3D map, cataloging 47 million galaxies and quasars—well above its target—across five years. Published in Astronomy & Astrophysics, the data could prompt a major shift in cosmology, with early results suggesting dark energy may not be constant and could be weakening the universe’s acceleration, challenging the standard LCDM model.

DESI's 3D universe map hints dark energy is weakening, sparking a cosmology rethink
space1 month ago

DESI's 3D universe map hints dark energy is weakening, sparking a cosmology rethink

DESI finished its five-year survey, delivering the largest-ever 3D map of the cosmos (about 47 million galaxies/quasars and 20 million stars). Early analyses suggest dark energy may be weakening, a finding that could challenge the Lambda-CDM cosmology and signal a major shift in our understanding of the universe; further data from the full map are expected.

Scientists Uncover Interstellar Tunnel Linking Solar System to Distant Worlds
science1 year ago

Scientists Uncover Interstellar Tunnel Linking Solar System to Distant Worlds

Astronomers have used data from the eROSITA All-Sky Survey to create a 3D map of the Local Hot Bubble (LHB), a low-density region of hot gas surrounding the solar system. This map reveals a temperature gradient within the LHB, likely caused by supernova explosions, and an 'interstellar tunnel' towards the constellation Centaurus, potentially linking the LHB with a neighboring superbubble. The study provides insights into the structure and dynamics of the LHB, including the role of stellar feedback in shaping interstellar tunnels.

3D Map Unveils Escape Tunnel in Solar System's Local Bubble
science1 year ago

3D Map Unveils Escape Tunnel in Solar System's Local Bubble

Astronomers have used data from the eROSITA All-Sky Survey to create a 3D map of the Local Hot Bubble (LHB), a low-density region of hot gas surrounding the solar system. This map reveals a temperature gradient within the LHB, likely caused by supernova explosions, and an 'interstellar tunnel' towards the constellation Centaurus, potentially linking the LHB with a neighboring superbubble. The study enhances understanding of the LHB's structure and its interaction with the interstellar medium, shaped by stellar winds and supernovae.

"Rethinking Cosmology: New Findings Challenge Dark Energy and Universe Expansion Theories"
astronomy2 years ago

"Rethinking Cosmology: New Findings Challenge Dark Energy and Universe Expansion Theories"

The Dark Energy Spectroscopic Instrument (DESI) has created the largest 3D map of the universe, potentially challenging the prevailing understanding of dark energy. Early analysis suggests that dark energy may not be constant but evolving with time, which could have significant implications for cosmology. This finding is based on DESI's observations of a million galaxies and the detection of Baryon Acoustic Oscillations, indicating a potential shift in our understanding of the universe's expansion. Further observations are needed to confirm this potential paradigm shift in cosmology.

"Unveiling the Evolving Nature of Dark Energy in the Expanding Universe"
science-and-technology2 years ago

"Unveiling the Evolving Nature of Dark Energy in the Expanding Universe"

Researchers at Berkeley Lab have created the largest 3D map of the universe, revealing startling implications about the universe's expansion and the nature of dark energy. The map, created using the Dark Energy Spectroscopic Instrument (DESI), suggests that dark energy may not be constant over time, challenging previous scientific understanding. This discovery could lead to a reevaluation of fundamental physics and the big bang theory, as well as a new understanding of the long-term fate of the universe.

"Mapping the Universe: Dark Energy Spectroscopic Instrument Creates Largest 3D Map"
astronomy2 years ago

"Mapping the Universe: Dark Energy Spectroscopic Instrument Creates Largest 3D Map"

The Dark Energy Spectroscopic Instrument (DESI) has created the largest 3D map of the universe, enabling researchers to study the expansion history and evolution of our cosmos with unprecedented precision. By analyzing the light from distant objects, DESI has produced world-leading cosmology results, potentially indicating that dark energy is evolving with time. The instrument's first-year data, combined with other studies, shows subtle differences from the leading model of the universe, Lambda CDM, which may lead to updates in our understanding of the cosmos. DESI's data will continue to provide insights into the expansion history, dark energy, and the dynamics of our universe.

"Unveiling Euclid's Enigmatic Images: From Data Puzzles to Breathtaking Views"
space2 years ago

"Unveiling Euclid's Enigmatic Images: From Data Puzzles to Breathtaking Views"

The European Space Agency's Euclid space telescope is set to release its first full-color images on November 7, marking a significant milestone in its mission to create the largest ever 3D map of the universe. These images will provide insights into cosmic secrets and contribute to the study of dark matter and dark energy. Euclid's data collection over its six-year mission is expected to generate the equivalent of a million DVDs worth of data.

Mapping the Cosmos: Dark Energy Device Surveys 2 Million Objects in 3D.
science2 years ago

Mapping the Cosmos: Dark Energy Device Surveys 2 Million Objects in 3D.

Scientists at the Lawrence Berkeley National Laboratory are using the Dark Energy Spectroscopic Instrument (DESI) to map more than 40 million galaxies, quasars, and stars in an effort to understand the effects of dark energy on our reality. Last week, the collaboration publicly released its first batch of data, with nearly 2 million objects, and 100,000 galaxies for researchers to explore. DESI uses 5,000 robotic positioners to move optical fibers that capture light from objects millions or billions of light-years away, building a 3D cosmic map.

Creating a 3D Map of the Universe: Observing Two Million Galaxies and Stars.
science2 years ago

Creating a 3D Map of the Universe: Observing Two Million Galaxies and Stars.

Scientists have created a 3D map of the universe by observing two million galaxies and stars for the first time using the Dark Energy Spectroscopic Instrument (Desi). The study aims to reveal the rate at which the universe is expanding and the first batch of data comes from more than 3,500 exposures of the night sky taken over six months, comprising of 80 terabytes. The project's ultimate goal is to map more than 40 million galaxies, quasars, and stars.