-
New Analysis of 2,884 Exploding Stars Suggests Dark Energy Might Not Be Constant
https://www.bioscience.com.pk/en/subject/astronomy/2-884-exploding-stars-deepen-the-mystery-of-dark-energypredictable peak luminosity, which allows researchers to map distances across the cosmos. In the standard Lambda cold dark matter (ΛCDM) model, dark energy is defined by the cosmological constant—a value that remains fixed as the universe expands....
-
Physicists Solve a Longstanding Cosmic Mapping Discrepancy
https://www.bioscience.com.pk/en/subject/astronomy/connecting-field-level-and-n-point-function-measurements-of-galaxy-biasfrustrating mathematical mismatch when trying to connect how galaxies cluster to the underlying distribution of invisible dark matter. A team of astrophysicists has deployed a physics framework called the renormalization group to solve this discrepancy,...
-
NASA Roman Telescope Connects to Falcon Heavy Launch Set for August 30 Nine Months Early
https://www.bioscience.com.pk/en/subject/physics/nasas-roman-telescope-reaches-a-major-milestone-nine-months-ahead-of-schedulemilestones and brings the observatory physically closer to the launchpad. Unveiling the Dark Universe: Dark Energy and Dark Matter One of the primary scientific goals of the Roman telescope is to probe the mysterious forces that drive the universe’s...
-
Pulsars May Have Just Revealed a Secret History of Ancient Dark Stars
https://www.bioscience.com.pk/en/subject/astronomy/scientists-found-a-hidden-message-in-pulsar-signals-that-could-rewrite-the-story-of-cosmic-dawnDark Stars. Unlike stars that rely on nuclear fusion, Dark Stars are theoretical entities powered by the annihilation of dark matter trapped within their cores. According to the team’s models, these structures could have remained stable for long...
-
NASA Is About To Launch A Telescope 100 Times More Powerful Than Hubble
https://www.bioscience.com.pk/en/subject/astronomy/nasas-nancy-grace-roman-space-telescope-is-about-to-open-a-vast-new-window-on-the-universesome of the most profound mysteries in astrophysics, including the elusive nature of dark energy, the distribution of dark matter, and the discovery of thousands of distant exoplanets. Nancy Grace Roman stands in front of a scale model of the Hubble...
-
Bar-Driven Galaxy Simulation Shows Nuclear Star Clusters And Disks Grow Together
https://www.bioscience.com.pk/en/subject/astronomy/scientists-simulated-a-milky-way-like-galaxy-for-4-billion-years-and-finally-revealed-how-its-hidden-core-structures-grow-togethercampaigns failed to uncover a simple mass‑size correlation between the two components. Dynamic Core Incorporates Dark Matter and Infalling Clusters A key innovation of the SMUGGLE‑Ring run is its live treatment of dark matter, allowing the stellar bar,...
-
Rubin Observatory Detects Ancient Dark Matter Galaxy Hiding On The Edge Of The Milky Way
https://www.bioscience.com.pk/en/subject/space-science/rubin-observatory-finds-a-ghostly-galaxy-hidden-at-the-edge-of-the-milky-wayruled out as a member due to its large Gaia DR3 proper motion. Image credit: NASA/JPL-Caltech/SSC A Cosmic Laboratory for Dark Matter The physical characteristics of Aquarius IV are extreme even by the standards of dwarf galaxies. With an absolute...
-
NASA Just Launched a Telescope That Sees 100 Times More of the Universe Than Hubble
https://www.bioscience.com.pk/en/subject/astronomy/nasas-roman-space-telescope-launches-to-map-billions-of-galaxies-and-hunt-distant-worldssome of the most stubborn mysteries in modern astrophysics, including the nature of dark energy and the distribution of dark matter. While it features a 2.4-meter primary mirror comparable to the Hubble Space Telescope, its Wide Field Instrument grants...
-
NASA Is Launching a Telescope With 100 Times the View of Hubble to Map the Unknown
https://www.bioscience.com.pk/en/subject/astronomy/nasa-built-a-telescope-100-times-wider-than-hubble-scientists-are-waiting-to-see-what-it-findswide-area surveys. After two decades of meticulous development, the project aims to unlock secrets surrounding dark matter, dark energy, and the distribution of planetary systems across the galaxy. Broad-Spectrum Insights Into Cosmic Architecture The...
-
Pulsar Signals May Reveal Secrets of the Universe’s First Dark Stars
https://www.bioscience.com.pk/en/subject/astronomy/scientists-may-have-found-a-hidden-signal-from-the-universes-first-black-holes-that-has-been-traveling-for-more-than-13-billion-yearsBy analyzing the data, scientists are investigating whether primordial “dark stars”—hypothetical objects powered by dark matter—could have served as the original seeds for the supermassive black holes observed today. The study, published in Physical...
-
The Moon’s Far Side Could Finally Reveal The Universe Before The First Stars Were Born
https://www.bioscience.com.pk/en/subject/astronomy/the-moons-far-side-could-open-a-window-into-the-universe-before-the-first-stars-were-bornbelieve that capturing these signals could provide profound insights into the distribution of early matter, the nature of dark matter, and the fundamental properties of neutrinos. The challenge lies in the sensitivity required. Earth’s ionosphere acts...
-
Canadian Telescope Successfully Maps Cosmic Hydrogen Without External Help
https://www.bioscience.com.pk/en/subject/astronomy/canadian-radio-telescope-chime-is-turning-hydrogen-into-a-map-of-cosmic-expansionof space. This method allows scientists to identify the clustering of hydrogen, which serves as a proxy for the invisible dark matter scaffolds that underpin the structure of the universe. “Hydrogen is the most common element in the universe and the raw...
-
Scientists Release a Massive New Map of the Universe’s First Light
https://www.bioscience.com.pk/en/subject/astronomy/scientists-release-a-massive-new-map-of-the-universes-first-lightof detail that allows researchers to trace both fine-scale patterns in the radiation and the subtle distortions caused by dark matter spread across cosmic distances. For the general reader, it helps to think of this map as a clearer photograph of the...
-
Ancient Space Thermometers Challenge Twist in Cosmic History
https://www.bioscience.com.pk/en/subject/astronomy/torsion-talks-only-to-spin-the-cmb-temperature-as-a-test-of-energy-exchange-in-einstein-cartan-cosmologystandard radiation history is restored, and low-redshift cosmological data remains unaffected. However, this fix requires dark matter to possess substantial vector spin, presenting a fresh theoretical challenge for identifying particle candidates...
-
Scientists Just Found That Nearsighted Eyes Overreact When Focusing Up Close
https://www.bioscience.com.pk/en/subject/health/scientists-just-found-that-nearsighted-eyes-overreact-when-focusing-up-closeA new study reveals that myopic eyes show stronger inward turning and tighter pupil constriction during near focus, linked to an imbalance between light and dark retinal pathways. Most people think of vision as simple. You look at something, and you...
-
NASA Releases First Test Images From Roman Space Telescope Showing Mysterious Green Rings
https://www.bioscience.com.pk/en/subject/space-science/nasas-new-space-telescope-sends-back-its-first-images-and-the-stars-look-like-blurry-green-ringsto investigate dark energy resonates strongly with the scientific community and the public alike. Because dark energy and dark matter are believed to constitute the vast majority of the universe’s mass, researchers view the mission as a vital step in...
-
Hidden Dark Sector Particles May Explain Mysterious Antarctic Air Showers
https://www.bioscience.com.pk/en/subject/astronomy/a-dark-sector-mass-flip-flop-mechanism-for-the-anita-iv-eventsA proposed mass flip-flop mechanism reconciles contradictory observations between the ANITA-IV and IceCube detectors. Four mysterious upward-going particle signals spotted by a balloon-borne antenna over Antarctica have long baffled physicists because...
-
Could Cosmic Acceleration Be an Illusion New Study Links Dark Energy Debate to Local Bulk Flow
https://www.bioscience.com.pk/en/subject/science/the-universe-may-not-be-expanding-the-way-we-thought-scientists-reopen-one-of-cosmologys-biggest-debatesStudy links the Universe’s apparent acceleration to vast cosmic motion, challenging the idea of a universal dark energy effect. A recent study published in the Monthly Notices of the Royal Astronomical Society challenges the notion that cosmic...
-
Hidden JWST Galaxy Misidentified As Ancient Until Archive Reanalysis Reveals True Distance
https://www.bioscience.com.pk/en/subject/space-science/a-hidden-galaxy-was-sitting-in-webbs-public-data-and-almost-looked-far-more-ancient-than-it-isthat massive structures warp spacetime, bending the trajectories of passing photons. Galaxy clusters, which combine dark matter, hot gas, and countless galaxies, generate some of the strongest gravitational lenses in the cosmos. When a distant galaxy...
-
Astronomers Discover Ancient Proto-Supercluster 5,000 Times the Mass of the Milky Way
https://www.bioscience.com.pk/en/subject/astronomy/a-cosmic-giant-5-000-times-the-milky-ways-mass-emerges-from-the-early-universeobserved in both systems aligns with the “bottom-up” theory of cosmic evolution, where smaller concentrations of dark matter and gas merge over time to produce the large-scale structures observed in the modern universe. The study also yielded insights...