Results 31 to 40 of about 458,695 (311)
Mercury's resonant rotation from secular orbital elements [PDF]
, 2015 We used recently produced Solar System ephemerides, which incorporate two years of ranging observations to the MESSENGER spacecraft, to extract the secular orbital elements for Mercury and associated uncertainties.
Hussmann, Hauke +2 more
core +2 more sources
The chemical case for Mercury mantle stripping
Progress in Earth and Planetary Science, 2019 Mercury, the Solar System’s innermost planet, has an unusually massive core prompting speculation that the planet lost silicate after it formed. Using the unusually high sulfur and low iron composition of its surface and space geodetic constraints on its
George Helffrich +2 more
doaj +1 more source
A transient enhancement of Mercury’s exosphere at extremely high altitudes inferred from pickup ions
Nature Communications, 2020 Mercury has a global dayside exosphere that is very tenuous and does not extend far from the planet. Here, the authors show enhancement of neutral densities at high altitudes inferred from pickup ions that is most likely caused by the impact of a ...
Jamie M. Jasinski +9 more
doaj +1 more source
The Dynamical Consequences of a Super-Earth in the Solar System
The Planetary Science Journal, 2023 Placing the architecture of the solar system within the broader context of planetary architectures is one of the primary topics of interest within planetary science. Exoplanet discoveries have revealed a large range of system architectures, many of which
Stephen R. Kane
doaj +1 more source
Solar sail capture trajectories at Mercury [PDF]
, 2002 Mercury is an ideal environment for future planetary exploration by solar sail since it has proved difficult to reach with conventional propulsion and hence remains largely unexplored.
Anselmi A. +13 more
core +1 more source
The advance of Mercury’s perihelion [PDF]
European journal of physicsA very famous ‘test’ of the General Theory of Relativity (GTR) is the advance of Mercury’s perihelion (and of other planets too). To be more precise, this is not a prediction of General Relativity, since the anomaly was known in the 19th century, but no ...
Bertrand Berche, Ernesto Medina
semanticscholar +1 more source
An Intra-Mercurial Planet [PDF]
Nature, 1876 THE discussion as to the existence of a planet within the orbit of Mercury leads me to communicate an observation made many years ago, which I believe nothing but the existence of an unknown planet between us and the sun can explain. On Sunday, January 29, 1860, the sun rose in a fog in London, so that he could be steadily looked at as if through a ...
openaire +3 more sources
A sub-Mercury-sized exoplanet [PDF]
, 2013 Since the discovery of the first exoplanets, it has been known that other planetary systems can look quite unlike our own. Until fairly recently, we have been able to probe only the upper range of the planet size distribution, and, since last year, to ...
Barclay, Thomas +2 more
core +1 more source
Revisiting the Relationship Between Rocky Exoplanet and Stellar Compositions: Reduced Evidence for a Super-Mercury Population [PDF]
Astronomical JournalPlanets and the stars they orbit are born from the same cloud of gas and dust, and the primordial compositions of rocky exoplanets have been assumed to have iron and refractory abundance ratios consistent with their host star. To test this assumption, we
C. Brinkman +5 more
semanticscholar +1 more source
BepiColombo Science Investigations During Cruise and Flybys at the Earth, Venus and Mercury
Space Science Reviews, 2021 The dual spacecraft mission BepiColombo is the first joint mission between the European Space Agency (ESA) and the Japanese Aerospace Exploration Agency (JAXA) to explore the planet Mercury. BepiColombo was launched from Kourou (French Guiana) on October
V. Mangano +61 more
semanticscholar +1 more source