Results 21 to 30 of about 1,554 (172)
The Chelyabinsk superbolide: a fragment of asteroid 2011 EO40?
, 2013 Bright fireballs or bolides are caused by meteoroids entering the Earth's atmosphere at high speed. On 2013 February 15, a superbolide was observed in the skies near Chelyabinsk, Russia.
Marcos, C. de la Fuente +1 more
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, 2017 Taurid meteor shower produces prolonged but usually low activity every October and November. In some years, however, the activity is significantly enhanced.
Borovička, J. +3 more
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Efficiency of planetesimal ablation in giant planetary envelopes [PDF]
, 2016 Observations of exoplanetary spectra are leading to unprecedented constraints on their atmospheric elemental abundances, particularly O/H, C/H, and C/O ratios.
Clarke, C, Madhusudhan, N, Pinhas, A
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Refinement of bolide characteristics from infrasound measurements [PDF]
Planetary and Space Science, 2017 Accepted for publication in Planetary and Space ...
Gi, Nayeob, Brown, Peter
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Interaction of infalling solid bodies with primordial atmospheres of disk-embedded planets
, 2018 Planets that form early enough to be embedded in the circumstellar gas disk accumulate thick atmospheres of nebular gas. Models of these atmospheres need to specify the surface luminosity (i.e. energy loss rate) of the planet.
Dorfi, Ernst +5 more
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Consequences of asteroid fragmentation during impact hazard mitigation [PDF]
, 2009 The consequences of the fragmentation of an Earth-threatening asteroid due to an attempted deflection are examined in this paper. The minimum required energy for a successful impulsive deflection of a threatening object is computed and compared to the ...
Davis D. R. +8 more
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, 2022 The composition of Bolides acts somewhat like a series of snapshots or a diary of my life between March 2020 and December 2021, and for me evokes geographical and temporal cues that are very specific for that particular point in time. The source material includes underwater recordings of kelp forests, captured by homemade hydrophones, the ululations of
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Historical Bolide Infrasound Dataset (1960–1972)
DataWe present the first fully curated, publicly accessible archive of infrasonic records from ten large bolide events documented by the U.S. Air Force Technical Applications Center’s global microbarometer network between 1960 and 1972.
Elizabeth A. Silber, Rodney W. Whitaker
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Oceans, Lakes, and Stromatolites on Mars
Advances in Astronomy, 2020 Billions of years ago, the Northern Hemisphere of Mars may have been covered by at least one ocean and thousands of lakes and rivers. These findings, based initially on telescopic observations and images by the Mariner and Viking missions, led ...
Rhawn G. Joseph +8 more
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What Can Craters Tell Us About a Planet? [PDF]
In this activity, students examine images of Martian craters and speculate about what caused them. Next, they model the formation of an impact crater by dropping objects into a tray of powder. They examine the effects of each impact and the features each
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