Navigation Links
Proposed mission would return sample from asteroid 'time capsule'
Date:3/11/2010

at's what makes RQ36 special. It's small and appears to have been altered very little, preserving the snapshot of our solar system's infancy. It's also rich in carbon, an element used in many of the organic molecules necessary for life. Organic molecules have been found in meteorite and comet samples, indicating that some of life's ingredients can be created in space. Scientists want to see if they are also present in RQ36.

Sample return, however, isn't the only objective for the mission. This asteroid crosses Earth orbit, and the International Astronomical Union's Minor Planet Center has officially classified RQ36 as a "potentially hazardous asteroid," with a slight chance one in 1,800 of an impact in the year 2170.

"We'll orbit RQ36 for about a year to analyze its surface and select a sample site. This will give us experience with operating spacecraft in the vicinity of an asteroid, experience that will be useful if we ever have to send a mission to deflect one," said Nuth.

Piloting a spaceship near an asteroid is not easy. Most are lumpy and rotate more rapidly than planets, which makes for challenging landings. These small objects have feeble gravity, so other forces can significantly influence the spacecraft's position.

"Gravity on this asteroid is so weak, if you were on the surface, held your arm out straight and dropped a rock, it would take about half an hour for it to hit the ground. Pressure from the sun's radiation and the solar wind on the spacecraft and the solar panels is about 20 percent of the gravitational attraction from RQ36. It will be more like docking than landing," adds Nuth.

The mission will also help to better track the orbits of asteroids that might hit Earth by accurately measuring the "Yarkovsky effect" for the first time. The Yarkovsky effect is a small push on an asteroid that happens when the asteroid absorbs sunlight and emits heat. The small push adds up over time, and it is uneven due
'/>"/>

Contact: Bill Steigerwald
William.a.steigerwald@nasa.gov
301-286-5017
NASA/Goddard Space Flight Center
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Plankton Power and RTDC announce proposed algae-to-biofuels pilot facility on Cape Cod
2. Wolf reintroduction proposed in Scottish Highland test case
3. Rules proposed to save the worlds coral reefs
4. New study raises concerns about proposed mitigation strategy for marine bycatch
5. Insect release proposed to control exotic strawberry guava
6. New hypothesis for origin of life proposed
7. New hope for horse lovers as effective control for killer ragwort is proposed
8. Alternative methods proposed to detect pesticides and antibiotics in water and natural food
9. More maize ethanol may boost greenhouse gas emissions
10. First images from ESAs water mission
11. Governments misjudging scale of CO2 emissions
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Proposed mission would return sample from asteroid 'time capsule'
(Date:7/29/2014)... of Dentistry (UM SOD) and Medicine (UM SOM) ... five-year $10.7 million grant award from the National ... the National Institutes of Health to study the ... The grant, which renews a previous $12 million ... for the research by studying chlamydial and gonorrheal ...
(Date:7/29/2014)... that brings together two of the major disciplines behind ... insect fossils through stunning photographs and unique illustrations. , ... Jepson, details the incredible preservation and diversity of fossilised ... what these remarkable fossils can tell us about the ... our planet. Like the mosquito in Jurassic Park, many ...
(Date:7/28/2014)... communities showing signs of damage from the Deepwater Horizon oil ... the Gulf of Mexico. The discovery was made by a ... State University. A paper describing this work and additional impacts ... will be published during the last week of July 2014 ... of the National Academy of Sciences . , "The footprint ...
Breaking Biology News(10 mins):University of Maryland Schools of Dentistry and Medicine receive NIH grant 2University of Maryland Schools of Dentistry and Medicine receive NIH grant 3University of Maryland Schools of Dentistry and Medicine receive NIH grant 4Unique images bring fossil insects back to life 2Impact of Deepwater Horizon oil spill on coral is deeper and broader than predicted 2
... release is available in German . ... as emissions trading, will only be successful if they ... and social issues, says a report published today by ... is formed from seven of the biggest European environmental ...
... Both plant and human diseases that can travel with ... rapidly than has been understood, according to a new ... for some human diseases but also a new fungus ... by scientists at Oregon State University and other institutions, ...
... dancing angels, a research team from the National Institute ... Colorado (CU) has shown how to detect and monitor ... needle point of an atomic force microscope probe, and ... the stability of the instruments measurements under ambient conditions. ...
Cached Biology News:Climate change aims need to be better integrated 2New wheat disease could spread faster than expected 2New wheat disease could spread faster than expected 3Making a point: Picoscale stability in a room-temperature AFM 2
(Date:7/29/2014)... July 29, 2014 July 29, ... pioneer in the biotechnology industry, announced that it ... Securities, Inc. to explore financing opportunities that build ... a breakthrough vaccine platform with the potential to ... company exclusively licensed the well-established LAMP platform from ...
(Date:7/29/2014)... Tenn. (PRWEB) July 29, 2014 ... in biomass feedstock supply innovation and supply chain ... proprietary feedstock management systems, Energy Grangeā„¢ and Supply ... of R&D and in-the-field testing aimed at consolidating ... offering benefits to landowners, farmers and feedstock end ...
(Date:7/29/2014)... Hill, South Carolina (PRWEB) July 29, 2014 ... with teams of people where cell phone masts or other ... iPhones up to 100 feet away without the need for ... to target longer ranges. , The new app has launched ... of US homes are at very high risk of being ...
(Date:7/29/2014)... Md., July 29, 2014  United Therapeutics Corporation ... its financial results for the second quarter ... growth shows that our medicines are reaching ... arterial hypertension (PAH)," said Martine Rothblatt, Ph.D., ... "The commercial launch this quarter of our ...
Breaking Biology Technology:Immunomic Therapeutics Engages Newport Coast Securities, Inc. 2Immunomic Therapeutics Engages Newport Coast Securities, Inc. 3Genera Energy Introduces Proprietary Feedstock Management Systems 2Genera Energy Introduces Proprietary Feedstock Management Systems 3Genera Energy Introduces Proprietary Feedstock Management Systems 4DisasterTalk App Could Save Lives as Report Reveals 8% of US Homes at Very High Risk of Natural Disaster 2United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 2United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 3United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 4United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 5United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 6United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 7United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 8United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 9United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 10United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 11United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 12United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 13
... applications based on nanoimprinting techniques (NIL) is evolving at a ... overcome in order to reach the market? How do we ... the industry? What are the tools needed for each product? ... topic, i.e. Nanopatterning, Production and Applications based on Nanoimprinting Lithography. ...
... SEATTLE, April 20, 2012 Cell Therapeutics, Inc. ("CTI" or ... and recent accomplishments for the first quarter of 2012. ... March 31, 2012, total operating expenses were $18.1 million compared ... loss attributable to common shareholders decreased 66% to $17.4 million ...
...  Phigenics LLC, an innovative water management services company, announced ... up to 33% false-positive test results for Legionella ... result means the test indicated Legionella was ... in fact it was below detectable levels at the ...
Cached Biology Technology:Low-cost optical components through nanoimprinting lithography 2Low-cost optical components through nanoimprinting lithography 3Cell Therapeutics, Inc. (CTI) Reports First Quarter Financial Results and Milestones 2Cell Therapeutics, Inc. (CTI) Reports First Quarter Financial Results and Milestones 3Cell Therapeutics, Inc. (CTI) Reports First Quarter Financial Results and Milestones 4Cell Therapeutics, Inc. (CTI) Reports First Quarter Financial Results and Milestones 5Phigenics Research Challenges Accuracy Of Conventional Legionella Testing Protocol 2Phigenics Research Challenges Accuracy Of Conventional Legionella Testing Protocol 3
mu Opioid Receptor splice variant Immunogen: Synthetic peptide corresponding to residues K S C M D R G M R N L L P D D G P R Q E of Mu Opioid Receptor. Storage: -20 C, Avoid Freeze/Thaw Cycle...
Anti-Salmonid Ig (H), Alk Phos, (Clone IPA5F12) (mouse IgG2a)...
Rat monoclonal [HK5.3] to B7 RP1 (Phycoerythrin) ( Abpromise for all tested applications). entrezGeneID: 23308 SwissProtID: O75144...
... with the HECT protein, E6-AP ... Evidence suggests that this E2 ... degradation of non-""N-end rule"" protein ... -acetylated proteins as well as ...
Biology Products: