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Bright streaks reveal Mercury still geologically active
Berlin, Germany (SPX) Jan 29, 2026 A new analysis of Mercury has uncovered hundreds of bright linear streaks on crater slopes that point to ongoing loss of volatile material from the planet's interior, challenging the view of Mercury as a geologically dead and dry world. The work, led by researchers at the Center for Space and Habitability (CSH) at the University of Bern together with colleagues at the Astronomical Observatory of Padua (INAF), shows that these features, known as slope streaks or lineae, are widespread and linked to recen ... read more |
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Mercury and Earth chorus waves show shared plasma behavior across magnetospheresTokyo, Japan (SPX) Jan 21, 2026 An international team has shown that natural electromagnetic chorus waves, long known in Earths magnetosphere, also occur in Mercurys much weaker magnetosphere with strikingly similar frequency beha ... more 
BepiColombo nears Mercury orbital arrival after seven year journeyParis, France (SPX) Nov 25, 2025 The ESA and JAXA BepiColombo mission is entering its final year of approach to Mercury, on track to reach orbit in November 2026 after launching in October 2018. The dual-spacecraft mission has alre ... more 
Collision of equal sized bodies may explain Mercurys unique compositionSao Paulo, Brazil (SPX) Sep 25, 2025 A new study suggests that Mercury's unusual structure may have resulted from a grazing collision between two similar sized protoplanets, rather than a rare catastrophic impact with a much larger bod ... more
Tidal forces from the Sun may have shaped Mercury's tectonic featuresParis, France (SPX) Jun 23, 2025 New research from the University of Bern reveals that tidal forces from the Sun may have significantly contributed to the formation of Mercury's hills and cliffs, challenging the long-standing belie ... more |
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BepiColombo completes fourth Mercury flybyParis, France (SPX) Sep 06, 2024 The ESA/JAXA BepiColombo mission successfully carried out its fourth of six gravity assist flybys at Mercury, capturing critical data and views of two distinct impact craters. These flybys utilize M ... more 
Q&A: 20 years since the MESSENGER missionLaurel MD (SPX) Sep 06, 2024 Twenty years ago the MESSENGER mission revolutionized our understanding of Mercury. We sat down with project head and former Carnegie Science director Sean Solomon to talk about how the mission came ... more 
Fourth Mercury flyby begins BepiColombo's new trajectoryParis, France (SPX) Sep 03, 2024 Teams from across ESA and industry have worked continuously over the past four months to overcome a glitch that prevented BepiColombo's thrusters from operating at full power. The ESA/JAXA mission i ... more 
Glitch hampers bepicolombo mission to mercuryParis, France (SPX) May 20, 2024 BepiColombo, the joint ESA/JAXA mission to Mercury, has experienced an issue that is preventing the spacecraft's thrusters from operating at full power. BepiColombo consists of two scientific ... more 
PSI unveils Mercury's hidden glaciers, suggesting new astrobiological insightsTucson AZ (SPX) Nov 18, 2023 Scientists from the Planetary Science Institute have uncovered evidence of potential salt glaciers on Mercury, opening a new frontier in astrobiology by revealing a volatile environment that might e ... more |
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Source of electron acceleration and X-ray aurora of Mercury
Kanazawa, Japan (SPX) Oct 11, 2023 Since Mercury is the closest planet to the Sun among the solar system planets, it is strongly influenced by the solar wind, a high-speed (several hundred km/s) stream of plasma blowing from the Sun. Explorations of Mercury was first carried out by the Mariner 10 spacecraft in 1974 and 1975, which revealed that Mercury has a magnetic field, and thus a magnetosphere, similar to that of Earth. In the 2000s, the MESSENGER spacecraft provided a detailed picture of the Mercury's magnetic field and magnetosphe ... read more 
Mapping the Sun's Interaction with Mercury's SurfaceTucson AZ (SPX) Sep 15, 2023 A new study maps the infall of protons and electrons from the solar wind to geographical location on the surface of Mercury, giving scientists new insight into how interactions with the Sun alters t ... more |
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First BepiColombo flyby of Mercury finds electron rain triggers x-ray aurorasLondon, UK (SPX) Jul 19, 2023 BepiColombo, the joint European Space Agency (ESA) and Japanese Aerospace Exploration Agency (JAXA) mission, has revealed how electrons raining down onto the surface of Mercury can trigger high-ener ... more
ASU scientist uses NASA MESSENGER mission data to measure chromium on MercuryTempe AZ (SPX) Jul 11, 2023 The origin of Mercury, the closest planet to the sun, is mysterious in many ways. It has a metallic core, like Earth, but its core makes up a much larger fraction of its volume - 85% compared to 15% ... more 
A trio of images highlight BepiColombo's third Mercury flybyParis (ESA) Jun 22, 2023 The ESA/JAXA BepiColombo mission has made its third of six gravity assist flybys at Mercury, snapping images of a newly named impact crater as well as tectonic and volcanic curiosities as it adjusts ... more 
BepiColombo braces for third Mercury flybyParis (ESA) Jun 15, 2023 The ESA/JAXA BepiColombo mission is gearing up for its next close flyby of Mercury on 19 June, when it will pass the planet's surface at an altitude of about 236 km. This is the third of six gravity ... more 
BepiColombo's second Mercury flybyParis (ESA) Jun 28, 2022 A beautiful sequence of 56 images taken by the monitoring cameras on board the ESA/JAXA BepiColombo mission as the spacecraft made its second close flyby of its destination planet Mercury on 23 June ... more |
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