MI weekly selection #587
Universe’s rapid expansion challenges existing physics
Scientists have confirmed that the universe is expanding at a rate faster than current physics models can explain, based on precise measurements of the Coma galaxy cluster. This discrepancy, known as the Hubble tension, presents a significant challenge in cosmology as different methods yield conflicting expansion rates.
Coral species shows ability to move like jellyfish
A species of coral, Cycloseris cyclolites, has been found to move in a manner similar to jellyfish, allowing the coral to find more favorable environments. “Understanding their movement strategies could help scientists predict how migratory corals might resist, survive, or adapt to changes in environmental conditions,” said Brett Lewis, lead author.
Full Story: Earth
Distant dormant galaxy produces repeating radio bursts
Astronomers have discovered fast-repeating radio bursts from a distant elliptical galaxy that should not have the energy to produce such signals. The galaxy is dormant, which means it should not be able to produce these signals, and the study challenges existing theories about the origins of these energetic signals.
Full Story: ABC News
Ancient formations challenge geological theories
Seismologists have discovered the existence of two massive underground formations, termed Large Low Seismic Velocity Provinces, which may alter current geological theories. These structures, found beneath the Pacific Ocean and Africa, are believed to be over 500 million years old, with larger mineral grains that impact seismic wave damping.
Full Story: Popular Science
Supersonic winds discovered on distant exoplanet
Researchers have detected record-breaking supersonic winds on the exoplanet WASP-127b, with speeds reaching almost 33,000 kilometers per hour. The findings highlight complex weather patterns on the gas giant, offering insights into planetary formation and atmospheric dynamics.
Full Story: ScienceAlert