asteroid Archives - Page 2 of 2

March 9, 2013

Linked?: Andrew Cooper on Feb 15 Asteroid and Russian Meteor

Cooper? Debunked: Not to be taken seriously. The first thing I noticed was a schoolboy blunder in celestial mechanics: you don’t add velocities in the way that he did, you add energies, that’s to say the squares of the velocities. If an asteroid with an asymptotic approach speed of 5.6 km/s is going to hit Earth its impact speed (prior to air resistance) would be 12.5…

521

Random Tusks

June 18, 2012

Finally Available in PNAS: Very High Temperature Impact Melt Products: Evidence for Cosmic Impacts Airbursts 12,900 years ago

These scientists have identified three contemporaneous levels more than 12,000 years ago, on two continents yielding siliceous scoria-like objects (SLO’s),” said H. Richard Lane, program director of National Science Foundation’s Division of Earth Sciences, which funded the research. “SLO’s are indicative of high-energy cosmic airbursts/impacts, bolstering the contention that these events…

944

Random Tusks

June 14, 2012

Very High Temp Impact Melt Products at 12.9 ka: The PNAS Abstract

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Random Tusks

June 13, 2012

Kerr on Limb: Science writer misleads peeps in public post

Distinguished Science writer Dr. Richard Kerr walked the plank this afternoon in response to this morning’s Knight Science Journalism Tracker inquiry of science writers. Charles Petit’s casual post brought quick attention from the old-school dean of science writing. Kerr implored his press colleagues to, in effect: Move on, move on…There is nothing to see here. See here: I…

633

Random Tusks

July 24, 2010

Rohrabacher keeps eyes to the sky while others pols dawdle

Two great Americans We need to take the next step. Our NEO search and tracking program continues to move forward, but nobody is taking responsibility for protection. I am more confident than ever in our ability to identify potential threats from asteroids and comets, but it is critical to the future of humanity that we develop the capabilities to protect ourselves from those…

517

Random Tusks

July 19, 2010

Breaking: WISE mission misleads public with confusing comet stats

In my day work I am no stranger to government bureaucracies and “programs” manipulating information about their activities until it suits them to do otherwise. The WISE mission is no different. In March of this year David Shiga wrote an obviously informed article revealing early results of the WISE mission (below). Six weeks into WISE’s work, someone revealed to Shiga (I…

677

Random Tusks

April 27, 2010

Adults in Charge?: NASA #2 Lori Garver published Neo-Catastrophist!

The frequency of impacts of objects of various sizes is known only to limited precisions. In particular, objects up to several meters in diameter explode in the atmosphere without reaching the surface. Although the energy released in these explosions may be many times greater than that released by the Hiroshima bomb, they most frequently occur over the ocean or sparsely inhabited regions of Earth…

636

Random Tusks

April 19, 2010

Obama whipsaws nation from Moon to Asteroid: Is he WISEing up?

You’ve got to wonder sometimes what could be going on behind the scenes. Could it be that the early results of the WISE mission and other disturbing government science projects are encouraging the bold (but not entirely unexpected) move of the White House to ditch the return to Moon in order to land on an Asteroid, or — dare we say — a Comet!? It could be. I think the…

433

Random Tusks

April 12, 2010

Tusk bullish on old Taurid Comet papers

Articles pertaining to the Taurid Complex: Title: Meteor observations in Japan: new implications for a Taurid meteoroid swarm Authors: ASHER, D. J.; IZUMI, K. Affiliation: AA(Communications Research Laboratory, 893-1, Hirai, Kashima-shi, Ibaraki-ken 314-0012, Japan), AB(Nippon Meteor Society, 812-8 Namiki-machi, Shibukawa-shi, Gunma-ken 377-0033, Japan) Journal: Monthly Notices…

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asteroid

Linked?: Andrew Cooper on Feb 15 Asteroid and Russian Meteor

Finally Available in PNAS: Very High Temperature Impact Melt Products: Evidence for Cosmic Impacts Airbursts 12,900 years ago

Very High Temp Impact Melt Products at 12.9 ka: The PNAS Abstract

Kerr on Limb: Science writer misleads peeps in public post

Rohrabacher keeps eyes to the sky while others pols dawdle

Breaking: WISE mission misleads public with confusing comet stats

Adults in Charge?: NASA #2 Lori Garver published Neo-Catastrophist!

Obama whipsaws nation from Moon to Asteroid: Is he WISEing up?

Tusk bullish on old Taurid Comet papers

Archive

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