Announcement

Collapse
No announcement yet.

Impact ~ NEO; Near Earth Objects

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • G David Bock
    replied
    Rather than a new thread, this interesting development regards comets ...
    Rosetta's missing Philae probe found in dark crack on comet

    High-resolution cameras on the European Space Agency's (ESA) Rosetta spacecraft have found space probe Philae, which landed on a comet nearly two years ago only to lose power because its solar-driven batteries were in the shade.Images taken from Rosetta at a distance of 2.7 km (1.7 miles) showed Philae wedged into a dark crack on Comet 67P/Churyumov–Gerasimenko, the ESA said on Monday.
    ...
    http://www.msn.com/en-us/news/world/...eA3?li=BBnbfcL

    Leave a comment:


  • G David Bock
    replied
    Pending another thread to place this in;

    Plan to Turn Asteroids Into Spaceships Could Spur Off-Earth Mining
    http://www.space.com/33079-turning-a...-in-space.html

    Leave a comment:


  • Bwaha
    replied
    The sky is falling, The sky is falling...

    We're all gonna die, why worry about when.

    Leave a comment:


  • GCoyote
    replied
    The Billionaire and the Doomsday Dust-up

    Some interesting comments on the nature of the risk as well.

    In a recent paper, Myhrvold charges that NASA scientists have made some serious errors in calculating the size and properties of the asteroids that come dangerously close to our planet. The specific details are fairly technical (you can read a semi-popular summary of his argument here in PDF form), but the upshot is plain enough. If the estimated asteroid sizes are wrong, so are the associated dangers posed by these objects. That would raise a whole new level of uncertainty around a type of natural disaster that is already the subject of highly polarized hype and dismissals.
    http://blogs.discovermagazine.com/ou.../#.V1N3SBEpDbU

    Leave a comment:


  • G David Bock
    replied
    What we would actually do to stop a 'doomsday' asteroid

    Leave a comment:


  • G David Bock
    replied
    Scientists develop mini Death Star to protect us from asteroids

    American researchers believe laser beam could be used to deflect space rocks on collision course with planet Earth

    http://www.telegraph.co.uk/news/scie...asteroids.html

    Leave a comment:


  • G David Bock
    replied
    Originally posted by G David Bock View Post
    Taking a suggestion from another thread, here's one addressing the issue of potential impact by large objects, asteroids/comets with effects upon Earth and methods to mitigate/prevent. For background material, some links:

    This one has a lot of imbedded links dealing with varied aspects;
    http://abob.libs.uga.edu/bobk/

    One from a classic researcher and author on the topic;Comets and the Bronze Age Collapse by Bob Kobres
    http://abob.libs.uga.edu/bobk/bronze.html
    (Interesting illustrations hinting at origin of swastika symbol.)

    Two movies of recent times addressed this issue. "Armageddon" was a Bruce Willis 'space cowboys' adventure and entertaining sort of flick. "Deep Impact" was a more realistic and pragmatic treatment. Both came out about the same time (hmmm )
    This link is a bit lengthy and delves into what some might consider tangental topics, I'm presenting it for it's portion concerning the Taurid Meteor Stream (Comet Encke). This is a debris stream of an object that may have broken up, Comet Shumacker-Levi 9 like, near Mars, about 20-40,000 years ago, remaining debris orbiting the Sun in a @3.3 year path which Earth crosses thru twice each year.

    One crossing occurs about late June-early July, the stream coming from the Sun's direction, hence a "daytime" display, and the Tunguska blast of 1908 is believed to be caused by an object in this stream. The other crossing occurs in the first couple of weeks of November and is from the direction of the outer Solar System, hence a night-time display. Note that prior to calender change of about 15 days that occurred in last few centuries, the end of the transit would have coincided with the end of October, and may hint at origins of Halloween.
    http://www.enterprisemission.com/oh_my_god.htm
    Yes,, this is the OP and perhaps time for a refresher, plus want to add a couple links on the Taurids and Comet Encke;
    https://en.wikipedia.org/wiki/Taurids
    https://en.wikipedia.org/wiki/Comet_Encke

    Leave a comment:


  • G David Bock
    replied
    Don't tell the gorebots ...
    Medium-Size Asteroid Strike Could Unleash a Mini Ice Age

    A strike by a medium-size asteroid could change Earth's climate dramatically for a few years, making life difficult for people around the world, a new study suggests.
    Such an impact on land (as opposed to at sea) could cause average global temperatures to plunge to ice age levels and lead to steep drops in precipitation and plant productivity, among other effects, researchers said.
    "These would not be pleasant times," Charles Bardeen, of the National Center for Atmospheric Research in Boulder, Colorado, said in December during a presentation at the annual fall meeting of the American Geophysical Union (AGU) in San Francisco.
    ...
    http://www.msn.com/en-us/news/techno...age/ar-BBpnE2c

    Leave a comment:


  • T. A. Gardner
    replied
    Here, have fun...

    http://www.purdue.edu/impactearth

    Leave a comment:


  • G David Bock
    replied
    How the March asteroid flyby shows Earth on alert

    Asteroid 2013 TX68 will soon buzz past Earth, providing a window into how NASA handles threats from space.

    A 100-foot asteroid will complete its second trip past the Earth in March. Asteroid 2013 TX68 first flew past Earth roughly two years ago, but never got closer than 1.3 million miles. This year, scientists expect the small asteroid to come much closer: between 11,000 miles and 9 million miles above the surface.
    Why the enormous range? Uncertainty over the asteroid's precise trajectory.
    But scientists are certain that the asteroid will stay in space: “There is no possibility that this object could impact Earth” in 2016, says a NASA press release. (But 2017 is another story: the risk increases to a 1-in-250 million chance of an impact.)
    With no immediate threat of an asteroid Armageddon, why does Asteroid 2013 TX68’s flyby matter?
    Because it demonstrates a growing awareness of the risk from space objects.
    “Asteroid detection, tracking, and defense of our planet is something that NASA, its interagency partners, and the global community take very seriously,” John Grunsfeld, associate administrator of NASA’s Science Mission Directorate said in January.
    ...
    http://www.msn.com/en-us/news/techno...Ai6?li=BBnbfcL

    Leave a comment:


  • G David Bock
    replied
    ‘Armageddon Office’

    NASA Launches New ‘Armageddon Office’ to Protect Us From Doomsday

    EXCERPT:
    NASA formalized the Planetary Defense Coordination Office within its Planetary Science Division on Thursday with the goal of detecting and tracking near-Earth objects as part of its latest effort to facilitate both national and global efforts to combat potential threats.
    One of the space agency’s main goals in propelling the PDCO forward was to protect Earth from potential asteroid threats by working in tandem with other countries and programs, according to the Huffington Post. To further boost its efforts, NASA recently partnered with the National Nuclear Administration to work toward creating a plan that will use nuclear technology to deflect incoming asteroids.
    “Asteroid detection, tracking and defense of our planet is something that NASA, its interagency partners, and the global community take very seriously,” said John Grunsfeld, the associate administrator for NASA’s Science Mission Directorate, in a statement. “While there are no known impact threats at this time, the 2013 Chelyabinsk super-fireball and the recent ‘Halloween Asteroid’ close approach remind us of why we need to remain vigilant and keep our eyes to the sky.”
    ...
    http://www.theblaze.com/stories/2016...from-doomsday/

    Leave a comment:


  • G David Bock
    replied
    Rare merged stars ...
    http://www.msn.com/en-us/news/techno...htV?li=AAa0dzB

    Oohps! This was supposed to go in the Astronomy Images thread.



    Last edited by G David Bock; 22 Oct 15, 13:36.

    Leave a comment:


  • G David Bock
    replied
    Latest, but well pass Moon's orbit, so not so close ...
    NASA confirms asteroid TWO MILES wide will pass close to Earth in 48 HOURS

    http://www.express.co.uk/news/scienc...Earth-48-hours

    Leave a comment:


  • G David Bock
    replied
    Peanut-Shaped Asteroid Zooms Past Earth in Incredible Video

    EXCERPTS:
    ....
    The resulting radar images, which researchers combined into an asteroid flyby video, show that the asteroid, known as 1999 JD6, is a "contact binary" consisting of two lobes joined together.
    ....
    The asteroid 1999 JD6 flew within 4.5 million miles (7.2 million kilometers) of Earth — about 19 times the distance between our planet and the moon — in the early-morning hours of July 25. 1999 JD6 won't come that close to Earth again until 2054, NASA officials said.
    ....
    http://www.space.com/30211-peanut-sh...yby-video.html

    Leave a comment:


  • G David Bock
    replied
    Asteroid worth £3 TRILLION in precious metals set to pass Earth on Sunday - and YOU can watch it live

    http://www.dailymail.co.uk/sciencete...atch-live.html

    Leave a comment:

Latest Topics

Collapse

Working...
X