Results 51 to 60 of about 62,310 (153)

Abiotic ozone and oxygen in atmospheres similar to prebiotic earth [PDF]

, 2014
The search for life on planets outside our solar system will use spectroscopic identification of atmospheric biosignatures. The most robust remotely detectable potential biosignature is considered to be the detection of oxygen (O2) or ozone (O3 ...
Domagal-Goldman, Shawn D., Robinson, T.D., Segura, A., Claire, Mark W., Claire, M.W., Meadows, Victoria S., Meadows, V.S., Domagal-Goldman, S.D., Robinson, Tyler D., Segura, Antigona, Claire, M.W.; id_orcid   +10 more
core   +1 more source

The NASA Exoplanet Archive and Exoplanet Follow-up Observing Program: Data, Tools, and Usage

The Planetary Science Journal
The NASA Exoplanet Archive (NEA) and the Exoplanet Follow-up Observing Program service are two widely used resources for the exoplanet community. The NEA provides a complete and accurate accounting of exoplanetary systems published by NASA missions and ...
Jessie L. Christiansen, Douglas L. McElroy, Marcy Harbut, David R. Ciardi, Megan Crane, John Good, Kevin K. Hardegree-Ullman, Aurora Y. Kesseli, Michael B. Lund, Meca Lynn, Ananda Muthiar, Ricky Nilsson, Toba Oluyide, Michael Papin, Amalia Rivera, Melanie Swain, Nicholas D. Susemiehl, Raymond Tam, Julian van Eyken, Charles Beichman   +19 more
doaj   +1 more source

The Power of a Name: Toward a Unified Approach to Naming Space Weather Events

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract Our increasing reliance on technology vulnerable to space weather effects underscores the urgent need for effective public communication about these phenomena. While scientific research thrives on precise technical language, broader public engagement necessitates a more accessible and memorable approach.
Sophie Chabanski, Felix de Montety, Jean Lilensten, Stefaan Poedts, Luca Spogli   +4 more
wiley   +1 more source

The Radius Cliff is a Waterfall: Explaining Sub-Neptune Exoplanets with Steam Worlds

The Astrophysical Journal
The demographics of Kepler planets provide a key testbed for models of planet formation and evolution, particularly for explaining the radius valley separating super-Earths and sub-Neptunes.
Aritra Chakrabarty, Gijs D. Mulders, Artyom Aguichine, Natalie Batalha   +3 more
doaj   +1 more source

Survey and Modeling of Windblown Ejecta Deposits on Venus

AGU Advances, Volume 6, Issue 5, October 2025.
Abstract Venus' thick atmosphere rotates in the same direction as the solid body, but ∼60 times faster. This atmospheric superrotation has produced dozens of windblown ejecta deposits (“parabolas”) on the surface of Venus. The formation and modification of parabolas is an interplay between impacts, aeolian modification, and atmospheric dynamics.
T. J. Austin, J. G. O’Rourke, N. Izenberg, E. A. Silber   +3 more
wiley   +1 more source

Architectures of Exoplanetary Systems. IV. A Multiplanet Model for Reproducing the Radius Valley and Intrasystem Size Similarity of Planets around Kepler’s FGK Dwarfs

The Astrophysical Journal
The Kepler-observed distribution of planet sizes has revealed two distinct patterns: (1) a radius valley separating super-Earths and sub-Neptunes and (2) a preference for intrasystem size similarity.
Matthias Y. He, Eric B. Ford
doaj   +1 more source

From Tape Reels to Global Access: A History and Future Vision of NASA's Scientific Data Management

Earth and Space Science, Volume 12, Issue 9, September 2025.
Abstract Since its creation in the late 1950s, NASA has collected space science data and information that span astrophysics, Earth science, planetary science, heliophysics, and biological and physical sciences. While these data were critical to NASA's objective of expanding human knowledge of space, the early days of scientific data and information ...
Kaylin Bugbee, Rahul Ramachandran
wiley   +1 more source

The 0.5MJ transiting exoplanet WASP-13b [PDF]

, 2009
We report the discovery of WASP-13b, a low-mass $ M_{\rm p} = 0.46 ^_~M_J$ transiting exoplanet with an orbital period of 4.35298 $\pm$ 0.00004 days. The transit has a depth of 9 mmag, and although our follow-up photometry does not allow us to constrain ...
West, Richard G., Christian, Damian Joseph, Wheatley, P.J., Enoch, B., Maxted, Pierre, D. R. Anderson, Christian, D.J., Irwin, J., Horne, K., K. Horne, Wilson, D.M., Udry, S., Gibson, N.P., B. Loeillet, Wilson, D. M., Christian, D. J., C. Moutou, Moutou, C., Barros, S.C.C., F. P. Keenan, Haswell, C. A., Queloz, Didier, Simpson, E., Loeillet, B., Moutou, Claire, H. C. Stempels, Stempels, Eric, Cameron, E., Queloz, D., P. Maxted, Stempels, H.C., Cameron, A. Collier, Norton, Andrew J., N. Parley, D. M. Wilson, Keenan, F. P., Barros, S. C. C., Anderson, D.R., Norton, A.J., F. Bouchy, Horne, Keith Douglas, B. Smalley, A. Collier Cameron, Smalley, B., C. Hellier, G. Hébrard, Cameron, Andrew Collier, Collier Cameron, A., Haswell, C.A., D. Pollacco, Gibson, N. P., Joshi, Y. C., E. Simpson, Pollacco, Don, Street, R. A., I. Todd, West, R.G., Hellier, Coel, Street, R., Y. C. Joshi, Street, R.A., Skillen, I., West, R. G., M. Mayor, D. J. Christian, R. A. Street, Irwin, Jonathan, Ryans, R., C. A. Haswell, Mayor, M., Todd, I., L. Hebb, Hebb, L., Smalley, Barry, B. Enoch, Stempels, H. C., Norton, A. J., R. G. West, Lister, T. A., J. Irwin, Hébrard, G., T. A. Lister, Pollacco, D., Parley, N., R. Ryans, D. Queloz, N. P. Gibson, Hellier, C., Keenan, F.P., S. C. C. Barros, Lister, T.A., Todd, Ian, Bouchy, François, I. Skillen, Bouchy, F., P. J. Wheatley, S. Udry, Maxted, P., Joshi, Y.C., Wheatley, P. J., A. J. Norton, Anderson, D. R., Cameron, Andrew Collier; id_orcid   +102 more
core   +1 more source

Hic Sunt Dracones: Uncovering Dynamical Perturbers within the Habitable Zone

The Astronomical Journal
The continuing exploration of neighboring planetary systems is providing deeper insights into the relative prevalence of various system architectures, particularly with respect to the solar system.
Stephen R. Kane, Jennifer A. Burt
doaj   +1 more source

Gaia Search for Stellar Companions of TESS Objects of Interest V

Astronomische Nachrichten, Volume 346, Issue 5, June 2025.
ABSTRACT In this paper, we present the latest results of our ongoing multiplicity survey of (Community) TESS Objects of Interest, using astrometry and photometry from the latest data release of the ESA Gaia mission to detect stellar companions of these stars and to characterize their properties.
Markus Mugrauer, Ann‐Kathrin Kollak, Lara Pietsch, Kai‐Uwe Michel   +3 more
wiley   +1 more source