Although #Mercury was geologically active in its early days, today its surface appears almost completely static.
This is why it is often perceived as a dead and dry #planet.
Now scientists have discovered a large number of bright streaks, also known as "lineae", on Mercury, which are presumably caused by the outgassing of volatile material from the planet's interior.
This indicates that Mercury is not a dead planet, as previously assumed, but might in fact be geologically active.
#planets
https://mediarelations.unibe.ch/media_releases/2026/media_releases_2026/streaks_mercury/index_eng.html