When Is Science Newsworthy?
Wednesday 29 August 2018
When Is Science Newsworthy? 29AUG2018
Tuesday 28 August 2018
Why Over 80% of All Life on Earth Was Wiped Out 250 Million Years Ago 28AUG2018
Why Over 80% of All Life on Earth Was Wiped Out 250 Million Years Ago
Thursday 16 August 2018
Asteroid Impact Likely Created the Oldest Felsic Rocks on Earth 16AUG2018
Rocks on Earth By Meghan Bartels, Space.com
Senior Writer | August 13, 2018 04:54pm ET
https://www.space.com/41468-meteorite-bombardment-created-oldest-earth-rocks.html
https://www.eurekalert.org/pub_releases/2018-08/gc-mbl081018.php
Johnson, T.E., Gardiner, N.J., Miljković, K., Spencer,
C.J., Kirkland, C.L., Bland, P.A. and Smithies, H., 2018.
An impact melt origin for Earth’s oldest known
evolved rocks. Nature Geoscience.
https://www.nature.com/articles/s41561-018-0206-5
https://doi.org/10.1038/s41561-018-0206-5
Yours,
Paul H.
Near-Earth Supernovas and Mass extinctions ( Lecture video) 16AUG2018
(When Stars Attack! ) In Search of
Near-Earth Supernova Explosions
Brian Fields, KU Physics & Astronomy
Public Talks, Published on Apr 20, 2016
https://www.youtube.com/watch?v=ND6u4Rnq0g0
Related papers are:
Breitschwerdt, D., Feige, J., Schulreich, M.M.,
de Avillez, M.A., Dettbarn, C. and Fuchs, B.,
2016. The locations of recent supernovae
near the Sun from modelling 60 Fe transport.
Nature, 532(7597), p. 73-78.
https://www.earth.northwestern.edu/people/seth/351/breitschwerdt.pdf
https://www.nature.com/articles/nature17424
Fields, B.D. and Ellis, J., 1999. On deep-ocean
60Fe as a fossil of a near-earth supernova.
New Astronomy, 4(6), pp. 419-430.
https://arxiv.org/pdf/astro-ph/9811457.pdf
https://www.sciencedirect.com/science/article/pii/S1384107699000342
Fry, B.J., Fields, B.D. and Ellis, J.R., 2015.
Astrophysical shrapnel: Discriminating among
near-earth stellar explosion sources of live
radioactive isotopes. The Astrophysical Journal,
800(1), 17 pp.
https://arxiv.org/pdf/1405.4310.pdf
http://iopscience.iop.org/article/10.1088/0004-637X/800/1/71/meta
Wallner, A., Feige, J., Kinoshita, N., Paul, M., Fifield,
L.K., Golser, R., Honda, M., Linnemann, U., Matsuzaki,
H., Merchel, S. and Rugel, G., 2016. Recent near-
Earth supernovae probed by global deposition of
interstellar radioactive 60 Fe. Nature, 532(7597),
pp. 69-72.
Yours,
Paul H.
Thursday 9 August 2018
Are we prepared for an asteroid headed straight to Earth? 09AUG2018
Are we prepared for an asteroid headed straight to Earth?
Tuesday 7 August 2018
Russian meteorite yields new mineral, uakitite 07AUG2018
Russian meteorite yields new mineral, uakitite
Saturday 4 August 2018
Meteor Made 2.1 Kiloton Explosion Over Air Force Space Command Base Thule, Greenland 04AUG2018
Meteor Made 2.1 Kiloton Explosion Over Air Force Space Command Base Thule, Greenland
Wednesday 1 August 2018
Blue Crystals from Meteorite Record Young Sun’s Outbursts 01AUG2018
Blue Crystals from Meteorite Record Young Sun’s Outbursts
The Young Sun’s Outbursts Were Trapped in
Blue Crystals From Outer Space Gases trapped
inside a meteorite that fell to Earth offer the
first physical clues of the “terrible twos”
phase of our star early in the life of the solar
system. By Nicholas St. Fleur, July 30, 2018
https://www.nytimes.com/2018/07/30/science/blue-crystals-sun.html
Blue crystals in meteorites show that our Sun
went through the 'terrible twos', Field Museum
https://phys.org/news/2018-07-blue-crystals-meteorites-sun-terrible.html
Yours,
Paul H.