New insights reveal Earth’s inner core exhibits 8.5-year wobble

New insights reveal Earth’s inner core exhibits 8.5-year wobble

Researchers from China have confirmed an 8.5-year Inner Core Wobble (ICW) in Earth’s polar motion and length-of-day variations, revealing a static tilt of about 0.17 degrees between the inner core and mantle, challenging long-standing assumptions about Earth’s internal dynamics.

Research reveals Hunga Tonga’s eruption caused an unexpectedly large loss of ozone

Research reveals Hunga Tonga’s eruption caused an unexpectedly large loss of ozone

The January 15, 2022, eruption of the Hunga Tonga-Hunga Ha’apai volcano produced the largest underwater explosion ever recorded, injecting an unprecedented amount of water vapor into the stratosphere, causing significant ozone loss and rapid aerosol formation, according to recent studies.

InSight mission confirms eight meteoroid impact events on Mars

InSight mission confirms eight meteoroid impact events on Mars

A team of researchers utilizing data provided by NASA’s InSight mission has confirmed two new seismic events caused by meteoroid impacts on Mars, bringing the total number to 8. The study, employing a combination of seismic data and orbital imagery, has successfully pinpointed fresh impact craters, enhancing our understanding of Martian surface and atmospheric interactions.

Study of Iceland volcano eruption reveals new insights into volcanic fountaining

Study of Iceland volcano eruption reveals new insights into volcanic fountaining

A team of Earth scientists, meteorologists, geologists, and volcanologists has formulated a new theory explaining the phenomenon of volcanic fountaining. This breakthrough is based on the analysis of the 2021 Fagradalsfjall eruption in Iceland, as reported in the journal Nature Communications.

Yale-led study reveals orbital tilt in pristine solar systems as common phenomenon

Yale-led study reveals orbital tilt in pristine solar systems as common phenomenon

A new study spearheaded by Yale astronomer Malena Rice and published in The Astronomical Journal has made a significant discovery about the orbital tilt of planets in pristine solar systems. Contrary to previous assumptions that slanted orbits result from cosmic disturbances, this research suggests that even in stable solar systems, planets can exhibit an orbital tilt of up to 20 degrees.

NJIT astronomers reveal unique aurora-like radio emission above sunspot

NJIT astronomers reveal unique aurora-like radio emission above sunspot

In a groundbreaking study published in Nature Astronomy, researchers from the New Jersey Institute of Technology’s Center for Solar-Terrestrial Research (NJIT-CSTR) have documented an extraordinary aurora-like radio emission occurring approximately 40 000 km (25 000 miles) above a sunspot. This novel radio emission, which shows characteristics akin to the auroral emissions observed around planets like Earth, Jupiter, and Saturn, presents an unprecedented understanding of solar radio bursts and their potential link to similar phenomena in stars with large starspots.

Study links volcanic eruptions in 540s, 1450s, 1600s to global cooling events

Study links volcanic eruptions in 540s, 1450s, 1600s to global cooling events

A new study led by the University of St Andrews, in collaboration with international researchers, reveals that historical volcanic eruptions, particularly in high latitude regions, have caused significant yet transient global cooling effects. Published in the Proceedings of the National Academy of Sciences, the research utilized sulfur isotopes from ice cores to trace the climatic impact of volcanic eruptions in the Northern Hemisphere, particularly during notably cold decades like the 540s, 1450s, and 1600s.

Tropical volcanic eruptions disrupt Indian Ocean climate cycles for up to 8 years

Tropical volcanic eruptions disrupt Indian Ocean climate cycles for up to 8 years

A recent study published in Geophysical Research Letters has found that volcanic eruptions occurring in tropical regions can disrupt climate cycles in the Indian Ocean for up to 8 years. The research, conducted by scientists from MIT and WHOI, focused on the impact of volcanic eruptions on the Indian Ocean Dipole (IOD) and the El Niño Southern Oscillation (ENSO).