Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

We are all now connected by the Internet, like neurons in a giant brain.

 

Stephen Hawking

 

NASA Resurrects a Dead Satellite to Hunt Asteroids

RATE THIS! +49
Posted in Science on 23rd Aug, 2013 07:10 AM by AlexMuller

For nearly three years, the Wide-field Infrared Survey Explorer (WISE) satellite was one of our most potent tools in the search for asteroids, discovering 33,500 of them (more than a dozen of which are potential impact threats) before being placed into hibernation in 2011.

 

But with a new-found interest in asteroid mining, NASA’s Jet Propulsion Lab has decided to fire the old girl back up for another round of space rock spotting.


“The WISE mission achieved its mission’s goals and as NEOWISE extended the science even further in its survey of asteroids. NASA is now extending that record of success, which will enhance our ability to find potentially hazardous asteroids, and support the new asteroid initiative,” said John Grunsfeld, NASA’s associate administrator for science in Washington in a press statement.


During its initial mission, the WISE trained its array of four-band IR sensors—which are 500,000 times more more sensitive than the COBE survey completed in the 1990s—on the glowing trails of space debris, stars, and other galaxies, snapping 7,500 images a day between 2010 and 2011. See, since asteroids don’t emit light (they only reflect it), small asteroids with a large albedo—its relative reflectiveness—will appear the same size as a larger, darker asteroid when viewed through an optical telescope. IR peers through the reflected light to accurately size up the orbiting rubble.


Once fully rebooted, the 1,200-pound WISE will scan the skies with its 16-inch telescope, searching for Near Earth Objects. Anything within 45 million kilometres of the planet’s orbit is considered an NEO and NASA estimates the WISE should detect another 150 or so previously unknown NEOs while recording their size, albedo, and temperature.


And with any luck, the WISE will spot incoming threats and mining opportunities alike before the chance to act passes us by.



Read original article » Back to category

Comments

Author: Guest
Posted: 2013-08-23
+7
WISE was one of our most potent tools in the search for asteroids, before being placed into hibernation in 2011. Okay? So why was it placed in hibernation, it is there, it cost a fortune to build and put up there, it apparently still works, so why? Reply
Author: Guest
Posted: 2013-08-23
+7
WISE will spot incoming threats and mining opportunities alike before the chance to act passes us by. And just what exactly is NASA going to use to get up there to do anything? Reply
Author: Guest
Posted: 2013-08-23
+7
WISE will train its array of four-band IR sensors—which are 500,000 times more more sensitive than the COBE survey completed in the 1990s, once again on finding asteroids. Reply
Author: Guest
Posted: 2013-09-06
+0
U0QTOy Really enjoyed this article post. Keep writing. Reply


 

Recent headlines

  • Posted in Science on 2017-06-26 14:35:26
    France to ban all new oil and gas exploration in.....read more
    Posted in Hardware on 2017-06-26 14:23:06
    Varjo Promises Human-Eye Resolutions For VR This Year..read more
    Posted in Science on 2017-06-26 14:17:14
    SpaceX Pulls Off Two Droneship Landings in Three Days..read more
    Posted in Business on 2017-06-25 14:44:38
    Microsoft wants to make Direct Reality VR’s answer to.....read more
    Posted in Medicine on 2017-06-25 14:31:51
    UK's first heart pump targets 2018 clinical trial..read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Nanoparticle vaccine shows potential as immunotherapy to fight.....read more
    Posted by AlexMuller
    Obesity is top cause of preventable life-years lost, study shows..read more
    Posted by AlexMuller
    Light can be utilized to control gene function..read more
    Posted by AlexMuller
    Brain stimulation restores memory during lapses, research shows..read more
    Posted by AlexMuller
    Wax worm caterpillar will eat plastic shopping bags: New.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me