Category archives: Astronomy

Is new physics needed to explain the early galaxy problem?

Is new physics needed to explain the early galaxy problem?

AstronomyAstrophysicsCosmology

By Invited Researcher

early galaxy problem Author: Rajendra Gupta, Adjunct professor, Physics, L’Université d’Ottawa/University of Ottawa Early universe observations by the James Webb Space Telescope (JWST) cannot be explained by current cosmological models. These models estimate the universe to be 13.8 billion years in age, based on the big-bang expanding universe concept. My research proposes a model that […]

The afterglow of an explosive collision between giant planets in a star system far away

The afterglow of an explosive collision between giant planets in a star system far away

Astronomy

By Invited Researcher

collision Authors: Simon Lock, NERC Research Fellow, School of Earth Sciences, University of Bristol; Matthew Kenworthy, Associate professor in Astronomy, Leiden University, and Zoe Leinhardt, Associate Professor, School of Physics, University of Bristol The afterglow of a massive collision between two giant planets may have been detected for the first time. The wreckage of the […]

Galaxies from the early Universe are more like our own Milky Way than previously thought

Galaxies from the early Universe are more like our own Milky Way than previously thought

AstronomyAstrophysicsCosmology

By César Tomé

Galaxies from the early Universe are more like our own Milky Way than previously thought, flipping the entire narrative of how scientists think about structure formation in the Universe. Using the James Webb Space Telescope (JWST), an international team of researchers has discovered that galaxies like our own Milky Way dominate throughout the universe and […]

Refsdal measurement of the Universe’s expansion rate

Refsdal measurement of the Universe’s expansion rate

AstronomyAstrophysicsCosmology

By César Tomé

Thanks to data from a magnified, multiply imaged supernova, a team of researchers has successfully used a first-of-its-kind technique based on the Refsdal method to measure the expansion rate of the Universe. Their data provide insight into a longstanding debate in the field and could help scientists more accurately determine the Universe’s age and better […]

A virtual Earth-sized telescope shows how science is changing in the 21st century

A virtual Earth-sized telescope shows how science is changing in the 21st century

AstronomyAstrophysicsPhilosophy of science

By Invited Researcher

In 2019, the Event Horizon Telescope (EHT) collaboration produced the first-ever image of a black hole, stunning the world. Now, scientists are taking it further. The next generation Event Horizon Telescope (ngEHT) collaboration aims to create high-quality videos of black holes. But this next-generation collaboration is groundbreaking in other ways, too. It’s the first large […]