developmentstoday

Ask DT AI Audio Brief Videos Podcast +

Ask DT AI Audio Brief Videos Podcast

HomeTagsdark energy

#dark energy

All articles tagged with "dark energy"

Company

About Us
Advertise
Contact
Editorial Policy

Legal

Terms of Service
Privacy Policy
Cookie Policy
AI & Ethics Policy
Do Not Sell My Info
FAQ
Archive
Site Map

Discover

Newsletter
Ask DT AI
Audio Brief
Videos
Podcast
DT Premium

Connect

Twitter / X
Facebook
LinkedIn
YouTube
Instagram
TikTok
Flipboard
RSS Feed

© 2026 Developments Today. All rights reserved.

In a sepia-toned photo, the Sun appears as a bright, enormous orb that appears to have frayed edges. Against this backdrop, a tall and slender rocket is seen in silhouette atop a cloudy plume.

NASA launches Roman Space Telescope on Falcon Heavy

NASA launched the Nancy Grace Roman Space Telescope on August 30, 2026.
Roman will survey billions of stars and galaxies with a field of view larger than Hubble’s.
The mission is aimed at dark energy, exoplanets, and the evolution of the universe.

DE

DT Editorial Team·Aug 31, 2026·via nasa.gov

More in Space→

A SpaceX Falcon Heavy rocket rises from NASA's Kennedy Space Center in Florida, sending the Nancy Grace Roman Space Telescope into space. (NASA Photo / Joel Kowsky)

NASA launches Roman Space Telescope months ahead of schedule

NASA launched the Nancy Grace Roman Space Telescope on August 30, 2026.
The observatory is headed to Earth-sun L2 after a successful Falcon Heavy mission.
Roman combines Hubble-like sensitivity with a field of view more than 100 times wider.
Its science goals include probing dark matter, dark energy, and Earthlike exoplanets.

DE

DT Editorial Team·Aug 31, 2026·via universetoday.com

More in Space→

nasa

NASA launches Roman Space Telescope toward a million-mile post

NASA launched the Nancy Grace Roman Space Telescope on August 30, 2026 aboard a SpaceX Falcon Heavy.
The observatory is heading to the Sun-Earth L2 point about one million miles from Earth.
Roman will conduct wide-field infrared surveys focused on dark matter, dark energy and exoplanets.

DE

DT Editorial Team·Aug 30, 2026·via nasa.gov

More in Space→

A nighttime shot of the Nancy Grace Roman Space Telescope encapsulated in its payload fairing, traveling to the SpaceX hangar at Launch Complex 39A at NASA’s Kennedy Space Center.

Roman Space Telescope heads to Falcon Heavy ahead of launch

NASA moved the encapsulated Roman Space Telescope to the SpaceX hangar at Launch Complex 39A.
The observatory is set to be mated to a Falcon Heavy rocket at Kennedy Space Center.
NASA says launch is targeted no earlier than Sunday, Aug. 30, 2026.
Roman is designed to study dark energy and trace dark matter’s role in galaxy formation and evolution.

DE

DT Editorial Team·Aug 26, 2026·via nasa.gov

More in Space→

NASA insignia

NASA Lines Up Roman Telescope Experts Ahead of Launch

NASA says the Nancy Grace Roman Space Telescope is scheduled to launch on August 30, 2026.
The mission is aimed at studying dark energy, exoplanets, and cosmic structure.
NASA Ames highlighted software, exoplanet imaging technology, and ground-systems support contributions.

DE

DT Editorial Team·Aug 25, 2026·via nasa.gov

More in Space→

The cosmic microwave background as mapped by NASA's WMAP mission. Its detailed statistics match inflation, not the ekpyrotic model. Credit: NASA / WMAP Science Team (public domain).

Why the Ekpyrotic Universe Fails: A Good Idea Crushed by Cosmic Data

The ekpyrotic universe model avoids the Big Bang singularity but relies on unproven string theory math.
It requires dark energy to turn off, but observations show dark energy is constant.
String theory's many branes lead to multiverse complications, similar to inflation.
Planck and WMAP data show CMB fluctuations match inflation, not ekpyrotic predictions.

DE

DT Editorial Team·Jun 10, 2026·via universetoday.com

More in Space→

The Roman observatory in a clean room

Roman Space Telescope heads to Kennedy for launch processing

Roman is traveling from Goddard to Kennedy aboard NASA’s Pegasus barge.
The observatory will move into launch processing at Kennedy.
NASA says Roman will study dark energy and directly image planets around nearby stars as a technology demonstration.

DE

DT Editorial Team·Jun 2, 2026·via nasa.gov

More in Space→

A map of the quasars, galaxies, and stars that DESI mapped out over the course of its five year survey. Credit - DESI collaboration and KPNO/NOIRLab/NSF/AURA/R. Proctor

DESI Finishes Its Largest 3D Map Yet and Deepens Questions About Dark Energy

DESI completed its five-year main survey on April 14 after mapping 47 million galaxies and quasars.
The instrument outperformed its original target of more than 34 million galaxies.
Early DESI results hint dark energy may evolve over time rather than remain constant.

DE

DT Editorial Team·Apr 29, 2026·via universetoday.com

More in Space→

Researchers are using DESI’s huge 3D map to study dark energy. Earth is at the center of this map, and every point is a galaxy. (Credit: DESI collaboration and KPNO/NOIRLab/NSF/AURA/R. Proctor)

DESI’s 47 Million-Galaxy Map Pushes Dark Energy Research Into a New Scale

DESI has produced the largest 3D map of the universe described in the source material.
The survey uses galaxy positions and distance measurements to trace dark matter-linked cosmic structure.
Researchers are using the data to probe dark energy, with observations set to continue through 2028.

DE

DT Editorial Team·Apr 28, 2026·via universetoday.com

More in Space→

The rise, the fall and the rebound of cyclic cosmology

Cyclic Cosmology Is Back in the Conversation as New Data Reopens an Old Question

Cyclic cosmology proposes that the universe expands, collapses and begins again.
The idea had fallen out of favor but is gaining renewed attention.
New discussion is being driven in part by DESI’s large-scale mapping of the universe.

DE

DT Editorial Team·Apr 19, 2026·via newscientist.com

More in Science→

A white point at the center of the screen leads to two lobes of blue above and below. The lobes also have concentric circles that form a hazy gradient.

DESI completes its giant 3D map of the cosmos and sharpens the dark energy debate

DESI has completed the largest 3D map of the universe yet assembled.
The map is meant to help researchers probe dark energy and cosmic expansion.
Its biggest impact may come through years of analysis built on the finished survey.

DE

DT Editorial Team·Apr 16, 2026·via space.com

More in Space→

Largest ever map of universe captures 47 million galaxies and quasars

DESI completes the largest 3D map of the universe yet, with 47 million galaxies and quasars

DESI completed a five-year survey of more than 47 million galaxies and quasars.
The survey greatly expands the scale of previous cosmic maps.
Researchers hope the data will clarify signs that dark energy may be weakening.
The project expects another year of analysis before broader data release.

DE

DT Editorial Team·Apr 15, 2026·via newscientist.com

More in Science→