Results 91 to 100 of about 1,554 (172)

Mass mortality and extraterrestrial impacts [PDF]

open access: yes
The discovery of iridium enrichment at the Cretaceous/Tertiary boundary resulted in formulation of hypothesis of a cometary or asteroid impact as the cause of the biological extinctions at this boundary. Subsequent discoveries of geochemical anomalies at
Gradstein, F. M.   +2 more
core   +1 more source

Origin of Life on Mars: Suitability and Opportunities. [PDF]

open access: yesLife (Basel), 2021
Clark BC   +8 more
europepmc   +1 more source

Greigite (Fe3S4) is thermodynamically stable: Implications for its terrestrial and planetary occurrence. [PDF]

open access: yesProc Natl Acad Sci U S A, 2020
Subramani T   +4 more
europepmc   +1 more source

Fluvial Volumes, Timescales, and Intermittency in Milna Crater, Mars [PDF]

open access: yes
Ancient lake deposits and valley networks on Mars provide strong evidence that its surface was once modified by liquid water, but the extent of that modification is still debated.
Buhler, P.   +3 more
core   +1 more source

The Seismic Signatures of Recently Formed Impact Craters on Mars. [PDF]

open access: yesJ Geophys Res Planets, 2019
Schmerr NC, Banks M, Daubar I.
europepmc   +1 more source

Fragile science. [PDF]

open access: yesmBio
Casadevall A, Fang FC.
europepmc   +1 more source

Photoacoustic Sounds from Meteors. [PDF]

open access: yesSci Rep, 2017
Spalding R   +7 more
europepmc   +1 more source

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