Rev 8:7 The first angel blew his trumpet, and there followed hail and fire, mixed with blood, and these were thrown upon the earth. And a third of the earth was burned up, and a third of the trees were burned up, and all green grass was burned up.
Rev 8:8 The second angel blew his trumpet, and something like a great mountain, burning with fire, was thrown into the sea, and a third of the sea became blood.
Rev 8:9 A third of the living creatures in the sea died, and a third of the ships were destroyed.
Rev 8:10 The third angel blew his trumpet, and a great star fell from heaven, blazing like a torch, and it fell on a third of the rivers and on the springs of water.
Rev 8:11 The name of the star is Wormwood. A third of the waters became wormwood, and many people died from the water, because it had been made bitter.
Rev 8:12 The fourth angel blew his trumpet, and a third of the sun was struck, and a third of the moon, and a third of the stars, so that a third of their light might be darkened, and a third of the day might be kept from shining, and likewise a third of the night.
Rev 8:13 Then I looked, and I heard an eagle crying with a loud voice as it flew directly overhead, "Woe, woe, woe to those who dwell on the earth, at the blasts of the other trumpets that the three angels are about to blow!"
For 15 years, scientists have benefited from data gleaned by U.S. classified satellites of natural fireball events in Earth’s atmosphere – but no longer.
A recent U.S. military policy decision now explicitly states that observations by hush-hush government spacecraft of incoming bolides and fireballs are classified secret and are not to be released, SPACE.com has learned.
The satellites’ main objectives include detecting nuclear bomb tests, and their characterizations of asteroids and lesser meteoroids as they crash through the atmosphere has been a byproduct data bonanza for scientists.
The upshot: Space rocks that explode in the atmosphere are now classified.
"It’s baffling to us why this would suddenly change," said one scientist familiar with the work. "It’s unfortunate because there was this great synergy…a very good cooperative arrangement. Systems were put into dual-use mode where a lot of science was getting done that couldn’t be done any other way. It’s a regrettable change in policy."
Scientists say not only will research into the threat from space be hampered, but public understanding of sometimes dramatic sky explosions will be diminished, perhaps leading to hype and fear of the unknown.
Incoming!
Most "shooting stars" are caused by natural space debris no larger than peas. But routinely, rocks as big as basketballs and even small cars crash into the atmosphere. Most vaporize or explode on the way in, but some reach the surface or explode above the surface. Understandably, scientists want to know about these events so they can better predict the risk here on Earth.
Yet because the world is two-thirds ocean, most incoming objects aren’t visible to observers on the ground. Many other incoming space rocks go unnoticed because daylight drowns them out.
Over the last decade or so, hundreds of these events have been spotted by the classified satellites. Priceless observational information derived from the spacecraft were made quickly available, giving researchers such insights as time, a location, height above the surface, as well as light-curves to help pin down the amount of energy churned out from the fireballs.
And in the shaky world we now live, it’s nice to know that a sky-high detonation is natural versus a nuclear weapon blast.
Where the space-based surveillance truly shines is over remote stretches of ocean – far away from the prospect of ground-based data collection.
But all that ended within the last few months, leaving scientists blind-sided and miffed by the shift in policy. The hope is that the policy decision will be revisited and overturned.
Critical importance
"The fireball data from military or surveillance assets have been of critical importance for assessing the impact hazard," said David Morrison, a Near Earth Object (NEO) scientist at NASA’s Ames Research Center. He noted that his views are his own, not as a NASA spokesperson.
The size of the average largest atmospheric impact from small asteroids is a key piece of experimental data to anchor the low-energy end of the power-law distribution of impactors, from asteroids greater than 6 miles (10 kilometers) in diameter down to the meter scale, Morrison told SPACE.com.
"These fireball data together with astronomical observations of larger near-Earth asteroids define the nature of the impact hazard and allow rational planning to deal with this issue," Morrison said.
Morrison said that fireball data are today playing additional important roles.
As example, the fireball data together with infrasound allowed scientists to verify the approximate size and energy of the unique Carancas impact in the Altiplano — on the Peru-Bolivia border — on Sept. 15, 2007.
Fireball information also played an important part in the story of the small asteroid 2008 TC3, Morrison said. That was the first-ever case of the astronomical detection of a small asteroid before it hit last year. The fireball data were key for locating the impact point and the subsequent recovery of fragments from this impact.
Source/Full Story: SPACE.com
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Rev 8:7 The first angel blew his trumpet, and there followed hail and fire, mixed with blood, and these were thrown upon the earth. And a third of the earth was burned up, and a third of the trees were burned up, and all green grass was burned up.
Rev 8:8 The second angel blew his trumpet, and something like a great mountain, burning with fire, was thrown into the sea, and a third of the sea became blood.
Rev 8:9 A third of the living creatures in the sea died, and a third of the ships were destroyed.
Rev 8:10 The third angel blew his trumpet, and a great star fell from heaven, blazing like a torch, and it fell on a third of the rivers and on the springs of water.
Rev 8:11 The name of the star is Wormwood. A third of the waters became wormwood, and many people died from the water, because it had been made bitter.
Rev 8:12 The fourth angel blew his trumpet, and a third of the sun was struck, and a third of the moon, and a third of the stars, so that a third of their light might be darkened, and a third of the day might be kept from shining, and likewise a third of the night.
Rev 8:13 Then I looked, and I heard an eagle crying with a loud voice as it flew directly overhead, "Woe, woe, woe to those who dwell on the earth, at the blasts of the other trumpets that the three angels are about to blow!"
Source/Full Story: SPACE.com
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