Results 11 to 20 of about 4,846 (203)
A comparative assessment of different deviation strategies for dangerous NEO [PDF]
, 2006 In this paper a number of deviation strategies for dangerous Near Earth Objects (NEO) have been compared. For each strategy (i.e. Solar Collector, Nuclear Blast, Kinetic Impactor, Low-thrust Propulsion, Mass Driver) a multi criteria optimisation method ...
Colombo, Camilla +6 more
core +3 more sources
A multi-criteria assessment of deflection methods for dangerous NEOs [PDF]
, 2007 Over the last few years, the possible scenario of an asteroid threatening to impact the Earth has stimulated an intense debate among the scientific community about possible deviation methods.
Colombo, Camilla +3 more
core +3 more sources
A multi-planetary system orbiting the early-M dwarf TOI-1238
, 2023 Context. The number of super-Earth and Earth-mass planet discoveries has increased significantly in the last two decades thanks to the Doppler radial velocity and planetary transit observing techniques.
Seager, Sara
core +1 more source
Physical Characterization of 2015 JD1: A Possibly Inhomogeneous Near-Earth Asteroid [PDF]
, 2022 The surfaces of airless bodies such as asteroids are exposed to many phenomena that can alter their physical properties. Bennu, the target of the OSIRIS-REx mission, has demonstrated how complex the surface of a small body can be.
Colin Orion Chandler +30 more
core +1 more source
On the interaction between embedded planets and the corotation region of protoplanetary discs [PDF]
, 2015 PhDDisc material in the corotation region librates with respect to low-mass planets on horseshoe trajectories. The exchange of angular momentum associated with this libration gives rise to the non-linear corotation torque (the horseshoe drag).
Fendyke, Stephen
core +4 more sources
Possibilities for an Aerial Biosphere in Temperate Sub Neptune-Sized Exoplanet Atmospheres
Universe, 2021 The search for signs of life through the detection of exoplanet atmosphere biosignature gases is gaining momentum. Yet, only a handful of rocky exoplanet atmospheres are suitable for observation with planned next-generation telescopes.
Sara Seager +5 more
doaj +1 more source
Habitable Zone Lifetime of Exoplanets around Main Sequence Stars [PDF]
, 2013 Funding: Dean's Scholarship at the University of East Anglia.The potential habitability of newly discovered exoplanets is initially assessed by determining whether their orbits fall within the circumstellar habitable zone of their star.
Claire, M. +4 more
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The Astrophysical Journal, 2023 We assess the dependence of Earth’s disk-integrated mid-infrared thermal emission spectrum on observation geometries and investigate which and how spectral features are impacted by seasonality on Earth.
Jean-Noël Mettler +4 more
doaj +1 more source
An ultra-short-period transiting super-Earth orbiting the M3 dwarf TOI-1685
, 2021 Dynamical histories of planetary systems, as well as the atmospheric evolution of highly irradiated planets, can be studied by characterizing the ultra-short-period planet population, which the TESS mission is particularly well suited to discover.
core +1 more source
Citizen Scientists Help Detect and Classify Dynamically Triggered Seismic Activity in Alaska
Frontiers in Earth Science, 2020 In this citizen science project, we ask citizens to listen to relevant sections of seismograms that are converted to audible frequencies. Citizen scientists helped identify local seismic events whose recorded signals are much smaller than those ...
Vivian Tang +10 more
doaj +1 more source