Results 11 to 20 of about 455,376 (292)

Prevalence of Earth-size planets orbiting Sun-like stars [PDF]

, 2013
Determining whether Earth-like planets are common or rare looms as a touchstone in the question of life in the universe. We searched for Earth-size planets that cross in front of their host stars by examining the brightness measurements of 42,000 stars ...
Howard, Andrew W., Marcy, Geoffrey W., Petigura, Erik A.   +2 more
core   +4 more sources

Planet Earth

Chapter Seven extends the analysis of unequal global relations, but with special reference to the links between the human species, other species and the planet they inhabit. The concept and theories of the era of the Anthropocene are explicated in detail.
Waldron, John W.F., Molinaro, Darrin J.
  +6 more sources

Refining the Transit-timing and Photometric Analysis of TRAPPIST-1: Masses, Radii, Densities, Dynamics, and Ephemerides

The Planetary Science Journal, 2021
We have collected transit times for the TRAPPIST-1 system with the Spitzer Space Telescope over four years. We add to these ground-based, HST, and K2 transit-time measurements, and revisit an N -body dynamical analysis of the seven-planet system using ...
Eric Agol, Caroline Dorn, Simon L. Grimm, Martin Turbet, Elsa Ducrot, Laetitia Delrez, Michaël Gillon, Brice-Olivier Demory, Artem Burdanov, Khalid Barkaoui, Zouhair Benkhaldoun, Emeline Bolmont, Adam Burgasser, Sean Carey, Julien de Wit, Daniel Fabrycky, Daniel Foreman-Mackey, Jonas Haldemann, David M. Hernandez, James Ingalls, Emmanuel Jehin, Zachary Langford, Jérémy Leconte, Susan M. Lederer, Rodrigo Luger, Renu Malhotra, Victoria S. Meadows, Brett M. Morris, Francisco J. Pozuelos, Didier Queloz, Sean N. Raymond, Franck Selsis, Marko Sestovic, Amaury H. M. J. Triaud, Valerie Van Grootel   +34 more
doaj   +1 more source

The Dvaraka Initiative: Mars’s First Permanent Human Settlement Capable of Self-Sustenance

Aerospace, 2023
From the farthest reaches of the universe to our own galaxy, there are many different celestial bodies that, even though they are very different, each have their own way of being beautiful.
Arvind Mukundan, Akash Patel, Bharadwaj Shastri, Heeral Bhatt, Alice Phen, Hsiang-Chen Wang   +5 more
doaj   +1 more source

The Humpty Dumpty Effect on Planet Earth

Frontiers in Conservation Science, 2022
Humans have treated the earth harshly. Degradation of extant ecosystems leaves little chance that they might function as they have in the past. Putting back the pieces and restoring what once existed is no longer possible even with re-wildling—an effect ...
Joel Berger, Joel Berger, Joanna E. Lambert   +2 more
doaj   +1 more source

Spatial Big Data Organization, Access and Visualization with ESSG [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
There are hundreds of spatial reference frame (SRF) being applied, and the great difference among SRFs has blocked the share of global data on planet Earth.
L. X. Wu, J. Q. Yu, Y. Z. Yang, Y. J. Jia   +3 more
doaj   +1 more source

The first super-Earth Detection from the High Cadence and High Radial Velocity Precision Dharma Planet Survey [PDF]

, 2018
The Dharma Planet Survey (DPS) aims to monitor about 150 nearby very bright FGKM dwarfs (within 50 pc) during 2016$-$2020 for low-mass planet detection and characterization using the TOU very high resolution optical spectrograph (R$\approx$100,000, 380 ...
Avner, Louis, Barnes, Rory, Bland, Steve, Cassette, Anthony, Ealey, Brent, Ge, Jian, Gilda, Sankalp, González Hernández, Jonay I., Grantham, Jim, Grieves, Nolan, Henry, Gregory W., Jakeman, Hali, Jeram, Sarik, Kimock, Benjamin, Liu, Jian, Ma, Bo, Muterspaugh, Matthew, Powell, Scott, Savage, David, Schofield, Sidney, Singer, Michael A., Sithajan, Sirinrat, Stafford, Greg, Stassun, Keivan, Varosi, Frank, Williamson, Michael H., Zhao, Bo   +26 more
core   +3 more sources

Dynamic Landslide Susceptibility Assessment in the Yalong River Alpine Gorge Region Integrating InSAR-Derived Deformation Velocity

Remote Sensing
Dynamic susceptibility assessment is essential for mitigating evolving landslide risks in alpine gorge regions. To address the static limitations and unit mismatch issues in conventional landslide susceptibility assessments in alpine gorge regions, this ...
Zhoujiang Li, Jianming Xiang, Guanchen Zhuo, Hongyuan Zhang, Keren Dai, Xianlin Shi   +5 more
doaj   +1 more source

Fast Rise of "Neptune-Size" Planets ($4-8 R_{\rm Earth}$) from $P\sim10$ to $\sim250$ days -- Statistics of Kepler Planet Candidates Up to $\sim 0.75 {\rm AU}$

, 2013
We infer the period ($P$) and size ($R_p$) distribution of Kepler transiting planet candidates with $R_p\ge 1 R_{\rm Earth}$ and $P < 250$ days hosted by solar-type stars.
Dong, Subo, Zhu, Zhaohuan
core   +1 more source

Observing Exoplanets with High Dispersion Coronagraphy. I. The scientific potential of current and next-generation large ground and space telescopes [PDF]

, 2017
Direct imaging of exoplanets presents a formidable technical challenge owing to the small angular separation and high contrast between exoplanets and their host stars.
Benneke, Bjorn, Hu, Renyu, Mawet, Dimitri, Ruane, Garreth, Wang, Ji   +4 more
core   +2 more sources