Menu
Blog scientist
Oceans on brink of mass extinction: study
Brain exercises delay mental decline
Meaning of life changes across cosmos
Ancient Nubians drank antibiotic beer
First mission to touch the Sun
There's gold in them thar bacteria!
Low vitamin D linked to schizophrenia
Weight loss may be toxic: study
Pilbara find points to earliest life
Researchers uncover dance moves to impress
Visual trickery key to luring lover
Scientists find short-sightedness gene
Artificial 'skin' can sense pressure
Study confirms antibiotics mess with gut
Phone chatter could power mobiles
Stowaways found hitching ride on seaweed
Fishing could feed millions more: report
Amateurs make an astronomical impact
Study reveals new piece in autism puzzle
Genome map may help devil fight cancer
Report says ozone layer depletion stopped
Moon's surface at saturation point
Gene sweeps nets female cancer clues
Australia birthplace of astronomy: study
Astronomers find long-lost lunar rover
The long lost lunar rover Lunokhod 1, has been rediscovered by astronomers using laser pulses, thirty-six years after it disappeared.

A team led by Associate Professor Tom Murphy at the University of California, San Diego worked out its position to within a few centimetres using data from NASA's Lunar Reconnaissance Orbiter (LRO).

Their paper, which has been submitted ot the journal Icarus, and appearing on the pre-press website ArXiv.org, says "the discovery will significantly advance gravitational and lunar science."

According to the researchers, it will improve sciences understanding of the Moon's orbit, position and movement through space.
Bathtub with a lid

Lunokhod 1 was launched from the Baikonur Cosmodrome aboard the then Soviet Union's Luna 17 mission, landing on the Moon on the 17 November 1970.

The rover, about the size of a small car and looking like a tin bathtub with a lid, travelled about 10 kilometres along the lunar landscape sending back tens of thousands of images and soil analyses from over 500 sites.

After it stopped working, scientists continued to bounce laser light off an array of French-built mirrors located on the rover's back.

Although range measurements were made, they were never published. The last recorded return signal was in May 1974, but the exact details of its position were never fully locked down.

Murphy's team regularly bounce laser light off the other known reflectors on the lunar surface left by Lunokhod 2 and the Apollo 11, 14 and 15 missions.

The more reflectors you have the more accurately you can measure the position of the Moon, so researchers enlisted the help of the LRO to search for Lunokhod 1.
Strong signal

In March the LRO spacecraft spotted the Luna 17 landing site. The rover's tracks helped the researchers to pinpoint its position to within a few hundred meters.

One month later, Murphy's team fired a laser from the Apache Point Observatory in New Mexico in that direction and detected a return.

They say the initial return was surprisingly bright.

"We found to our surprise that Lunokhod 1 is a much better reflector than its twin L2," they write.

The researchers say the Lunokhod 1 reflector is especially useful because it is closer to the Moon's limb than any of the other reflectors. And unlike the Lunokhod 2 reflector, it can be used during the lunar day.

Space analyst and writer Dr Morris Jones says the reflector's performance is not bad considering the rover's been on the exposed lunar surface for 40 years.

"While both reflectors were of the same design and materials, Lunokhod 1 seems to have suffered less space weathering, probably because of where it landed, its position and angle."

Jones says the Moon's environment is pretty hard on equipment. There are impacting micrometeorites that act like sand blasting and radiation that can cause chemical reactions in some materials, blackening the laser reflectors.

According to Jones, the failure of the N1 moon rocket program meant the Soviets abondaned their plans to send humans to the Moon and focus on lunar rovers instead.

"It was the first time anyone had tried to land and operate a rover on another world."

Print
Census charts world beneath the seas
Wonder carbon nets pair Nobel Physics Prize
Focus on chest for CPR: study
Bull ants have right eye for the job
Carbon chemistry pioneers share prize
Ancient galaxies found in modern universe
Solar surprise for climate models
Study predicts end of world as we know it
Rare plant has biggest genome yet found
Astronomers find long-lost lunar rover
Flight paths may be bad for the heart
Complex Haitian quake triggered tsunamis
US doctors usher in 'dawn of stem cell age'
Changing demographics impact CO2 levels
Sleeping in lit room leads to weight gain
Harsh conditions create sterile workers
Study finds pigeons love a flutter
Humpback whale beats long-distance record
Survey to dive deep into Australian waters
Bad jobs affect mental health
Hubble captures suspected asteroid crash
Mysterious pulsar has astronomers in a spin
Native rice may hold key to food future
Future LEDs may be what the doctor orders
Bilingualism good for the brain
Organ consent needs thought transplant
Cavemen ground flour, prepped veggies
Fossilised iceblocks shed light on early life
Menu
Water on Moon bad news for astronomy
Human eye evolved to see dark world
Wind could have parted sea for Moses
CERN scientists spot potential discovery
Malaria crossed to humans from gorillas
Horny find uncovers Triceratops' predecessor
Time passes quicker for high flyers
Da Vinci's ornithopter takes flight
Software smart bomb aimed at Iran: experts
High oestrogen levels may impact brain
Quantum leap towards computer of the future
Study finds predictive power of search
Cardio routine can nurture sweet dreams
Restored Apollo 11 footage to be screened
'Extinct' animals back from the dead
Astronomers find home away from home
Study locates our sense of direction
Records reveal First Fleet's wet welcome
Dinosaurs taller thanks to thick cartilage
Free mammograms 'should start at 40'
Grunting slows opponent's reaction time
Colour preferences shaped by experience
Father of IVF wins Nobel prize
Happiness more than gene deep
Visit Statistics
http://google.com/

http://bing.com/

https://gepatit-info.top/

https://serdechnic.com/

https://buy-meds24.com/

https://dverirespekt.ru/

https://www.sribno.net/

https://undergroundcityphoto.com/

https://detskiezabolevaniya.com/

http://grafaman.ru/

http://innoslicon.com/html/product/index.htm

https://yginekologa.com/

https://yes-com.com/

https://www.baikaleminer.com/

https://bitmaein.com/shop

https://www.artdeko.info/

https://aerodizain.com/

http://xn--d1abj0abs9d.in.ua/

http://lider82.ru/

http://sta-grand.ru/

http://snabs.kz/

https://sky-mine.ru/

https://rybalka-opt.ru/

http://snegozaderzhatel.ru/

https://xn--e1aaajzchnkg.ru.com/

http://hit-kino.ru/

http://www.regionshop.biz/

https://xn--80aaafbn2bc2ahdfrfkln6l.xn--p1ai/

https://pp-budpostach.com.ua/

https://vykup-avto-krasnodar.ru/

https://gcup.ru/

https://mega-polis.biz.ua/

http://vanrise.com.ua/

http://infra-e.ru/

https://veterinariya.com/

https://ponosanet.com/

https://cariestop.com/

https://proartrit.com/

https://elonm.ru/

https://nakozhe.com/

https://spinanebolit.com/

http://zameskino.ru/

http://kinoprinc.ru/

http://pospektr.ru/

http://buypillsonline24h.com/

http://komputers-best.ru/

https://komp-pomosch.ru/