Results 51 to 60 of about 22,321,491 (359)

MAHLI on Mars: lessons learned operating a geoscience camera on a landed payload robotic arm [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2016
The Mars Hand Lens Imager (MAHLI) is a 2-megapixel, color camera with resolution as high as 13.9 µm pixel−1. MAHLI has operated successfully on the Martian surface for over 1150 Martian days (sols) aboard the Mars Science Laboratory (MSL) rover ...
R. A. Yingst   +7 more
doaj   +1 more source

AMD-stability and the classification of planetary systems [PDF]

open access: yes, 2017
We present here in full detail the evolution of the angular momentum deficit (AMD) during collisions as it was described in (Laskar, PRL,2000). Since then, the AMD has been revealed to be a key parameter for the understanding of the outcome of planetary ...
J. Laskar, A. Petit
semanticscholar   +1 more source

Planetary health & COVID-19: A multi-perspective investigation

open access: yesOne Health, 2022
COVID-19 can be characterized as an outcome of degraded planetary health drivers in complex systems and has wide-reaching implications in social, economic and environmental realms.
Byomkesh Talukder   +2 more
doaj   +1 more source

The Detection and Characterization of Extrasolar Planets

open access: yesChallenges, 2014
We have now confirmed the existence of > 1800 planets orbiting stars other thanthe Sun; known as extrasolar planets or exoplanets. The different methods for detectingsuch planets are sensitive to different regions of parameter space, and so, we are ...
Ken Rice
doaj   +1 more source

The planetary commons: A new paradigm for safeguarding Earth-regulating systems in the Anthropocene

open access: yesProceedings of the National Academy of Sciences of the United States of America
The Anthropocene signifies the start of a no-analogue trajectory of the Earth system that is fundamentally different from the Holocene. This new trajectory is characterized by rising risks of triggering irreversible and unmanageable shifts in Earth ...
J. Rockström   +21 more
semanticscholar   +1 more source

Unstable low-mass planetary systems as drivers of white dwarf pollution [PDF]

open access: yes, 2017
At least 25 percent of white dwarfs show atmospheric pollution by metals, sometimes accompanied by detectable circumstellar dust/gas discs or (in the case of WD 1145+017) transiting disintegrating asteroids.
A. Mustill   +4 more
semanticscholar   +1 more source

Heavy Metal Rules. I. Exoplanet Incidence and Metallicity

open access: yesGeosciences, 2019
The discovery of only a handful of exoplanets required establishing a correlation between giant planet occurrence and metallicity of their host stars.
Vardan Adibekyan
doaj   +1 more source

Climate change-accelerated ocean biodiversity loss & associated planetary health impacts

open access: yesThe Journal of Climate Change and Health, 2022
A planetary health perspective views human health as a function of the interdependent relationship between human systems and the natural systems in which we live.
Byomkesh Talukder   +5 more
doaj   +1 more source

The radial dependence of pebble accretion rates: A source of diversity in planetary systems I. Analytical formulation [PDF]

open access: yes, 2016
Context. The classical "planetesimal" accretion scenario for the formation of planets has recently evolved with the idea that "pebbles", centimeter- to meter-sized icy grains migrating in protoplanetary disks, can control planetesimal and/or planetary ...
S. Ida, T. Guillot, A. Morbidelli
semanticscholar   +1 more source

Planets, Planetary Nebulae, and Intermediate Luminosity Optical Transients (ILOTs)

open access: yesGalaxies, 2018
I review some aspects related to the influence of planets on the evolution of stars before and beyond the main sequence. Some processes include the tidal destruction of a planet on to a very young main sequence star, on to a low-mass main sequence star ...
Noam Soker
doaj   +1 more source

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