Dust plays an important role in creating Mercury’s tenuous exosphere and weathering its surface; new measurements from BepiColombo will advance our understanding of dust’s effects on Mercury.
A global network of robotic telescopes helps test a new way of measuring oscillation modes of massive stars; successful measurements of these modes may unlock these stars’ interior structures.
The interstellar media of dwarf galaxies — defined in this work as galaxies with total stellar mass less than about 3 billion times the mass of the Sun — haven’t changed much over the past 7.8 billion years.
If current or future spacecraft cross a solar current sheet, it would give researchers entirely new insight into these structures, which are key to understanding solar eruptions.
Researchers discover a protocluster just 800 million years after the Big Bang; the protocluster is estimated to involve into a galaxy cluster with a mass of 7 quadrillion Suns.
Coronal “spiders” or coronal cloud prominences are strands of cool, tenuous solar plasma suspended up to 200,000 km in the corona; these features tend to shrink and disappear rather than erupt.