Monday, 19 August, 2019


Chang'e-4 Records Unexpectedly Low Temperatures on Far Side of the Moon

China Chang's 4 probe China landing on Moon China Moon landing Chang's 4 probe data Moon Moon temperature Yutu-2 Jade Rabbit-2 Moon mission NASA space Chang'e-4 Records Unexpectedly Low Temperatures on Far Side of the Moon
Kristine Garrett | 02 February, 2019, 14:13

China's lunar probe Chang'e-4 has woken up from a two-week hibernation on the far side of the moon - and it's colder than scientists had predicted.

It takes the moon 27 days to rotate; it also takes the same amount of time for the moon to orbit around the Earth once. The rest mode was necessary due to the frigid nighttime temperatures on the lunar far side, which plunged as low as -310 degrees Fahrenheit.

The static lander, which launched on 7 December, touched down at 10:26 am Beijing time on 3 January in the South Pole-Aitken basin.

China's Chang'e-4 probe touched down on the far side of the moon Thursday, becoming the first spacecraft soft-landing on the moon's uncharted side never visible from Earth.

As a result of the tidal locking effect, the moon's revolution cycle is the same as its rotation cycle, and it always faces Earth with the same side.

"That's probably due to the difference in lunar soil composition between the two sides of the moon. We still need more careful analysis", Zhang added. Previously, the Chinese scientists had no data on exactly how cold it could be.

This is much colder than temperatures recorded by previous missions to the moon by the United States, which were limited to the moon's near side.

The lander, which returned mesmeric footage of the landing, will begin observations with the low‐frequency radio spectrometer (LFS) while the Lunar Lander Neutrons and Dosimetry (LND) instrument developed in Germany will measure levels of radiation and seek to detect evidence of water.

The temperature was lower than conditions reported by US missions to the near side of the moon, according to Chang'e-4 mission director Zhang He, speaking with China's state-owned news agency Xinhua.

At the end of 2013, China launched Chang'e-3, the country's first spacecraft to soft-land on the moon. During the first lunar-day period, the Chang 'e-4 lander and the rover successfully completed their engineering tasks, and the scientific payloads successfully started up.

Both rover and lander carry radioisotope heat sources to prevent them from freezing entirely during the long lunar nights. "It was really thrilling", said Li Chunlai, deputy director of the National Astronomical Observatories of China and commander-in-chief of the ground application system of Chang'e-4.

NASA's Curiosity rover also adopts this power technology, freeing it from the sunshine, sand and dust restrictions that have affected its predecessors Opportunity and Spirit, he explained.

Recommended

loading...
...
  • Vaping 2x better for quitting smoking than patches, gum

    Vaping 2x better for quitting smoking than patches, gum

    More e-cigarette users, however, reported increased throat and mouth irritation (65.3%,) than nicotine replacement users (51.2%). These devices now often have more nicotine and come in a more convenient form than the first-generation vaping devices.
    Wade Wilson, former Vikings QB and Bears assistant coach, dies at 60

    Wade Wilson, former Vikings QB and Bears assistant coach, dies at 60

    He was eventually drafted by the Minnesota Vikings in the eighth round of the 1981 draft. Wilson passed away at home in Coppell, according to a release from the Cowboys .
    Tekashi 6ix9ine Pleads Guilty To Nine Federal Counts

    Tekashi 6ix9ine Pleads Guilty To Nine Federal Counts

    Tekashi , whose real name is Daniel Hernandez , stated in a trial held last week that he joined the gang in fall 2017. Information pertaining to it was unsealed Friday in Manhattan federal court. 6ix9ine is copping a plea.
  • Moved to tears, Rudy Gobert feels disrespect in NBA All-Star snub

    Moved to tears, Rudy Gobert feels disrespect in NBA All-Star snub

    Gobert is averaging 15 points, 13 rebounds, two assists and two blocks per game this season. Green, who was also not named an All-Star, said he supposes he should cry now, too.
    Bulls Acquire Timothe Luwawu-Cabarrot, Waive Carmelo Anthony

    Bulls Acquire Timothe Luwawu-Cabarrot, Waive Carmelo Anthony

    Luwawu-Cabarrot, the 24th pick in 2016, averaged 16.5 minutes in 121 games over two seasons with the 76ers. Carmelo Anthony has been waived by the Chicago Bulls, making the 10-time All-Star forward a free agent.

    The Best Social Reactions to that Insane Hobbs & Shaw Trailer

    And because nothing gets by the internet, the lunacy of Hobbs & Shaw has set fire to the social media film community. Hobbs should work with Shaw to stop an worldwide terrorist known as Brixton.
  • Iowa Student Among 8 Deaths Linked to Polar Vortex

    Iowa Student Among 8 Deaths Linked to Polar Vortex

    The National Weather Service says the wind chill around 3 a.m. was negative 51 degrees (negative 46 Celsius). According to Belz's father, his son had chose to remain on campus to wait out the cold.
    Frost quakes possible due to arctic blast

    Frost quakes possible due to arctic blast

    WGN posted about frost quakes on social media , and numerous viewers commented about hearing them. As temperatures drop well below freezing, the saturated material will freeze and expand.
    Anthony Martial signs new five-year contract with Manchester United

    Anthony Martial signs new five-year contract with Manchester United

    And yet Mourinho thought it was a good idea to let the 23-year-old go and replace him with Ivan Perisic - an older, mediocre player.
  • Taliban say they are not looking to rule Afghanistan alone

    Taliban say they are not looking to rule Afghanistan alone

    The death toll of US service members in Afghanistan has surpassed 2,400 since the United States invaded the country in 2001. It said the USA military continued to prevent it from publishing Afghan forces' casualty data, at Kabul's request.
    Apple punishes Google with iPhone app restrictions

    Apple punishes Google with iPhone app restrictions

    Facebook says Apple is restoring its access to a key development tool that the iPhone maker disabled Wednesday. For now, the app appears to be available for Android phones, though not through Google's main app store.
    Stone heads to court; Mueller cites potential evidence trove

    Stone heads to court; Mueller cites potential evidence trove

    The judge imposed a gag order in that case after a lawyer for Manafort addressed reporters after his first court appearance. He said there is no evidence or accusation that he knew in advance about the source or content of the WikiLeaks material.

A sinkhole turned out to be an underground tunnel to a bank A sinkhole turned out to be an underground tunnel to a bank Investigators found an entrance hole in nearby woodland that contained a small electric generator and some electrical cords. A cadaver-sniffing dog and a remote controlled camera were used to verify that there was no one inside the tunnel.

Davis Cup | Mahesh Bhupathi rues missed opportunities against Italy Davis Cup | Mahesh Bhupathi rues missed opportunities against Italy Much will then depend on Rohan Bopanna and Divij Sharan, who will be playing their first Cup rubber together. Prajnesh, ranked at a career best of 102, slowly eased into the match by staying within sight of Berrettini.

Bangkok governor calls for expert help to tackle city's air pollution | #AsiaNewsNetwork Bangkok governor calls for expert help to tackle city's air pollution | #AsiaNewsNetwork Fleets of drones are set to be deployed to disperse sugary liquid solution to help clear the air of microscopic particles. Measurements of harmful particulates are higher than some cities in China but well below the Indian capital New Delhi.

PlayStation Plus games for February include Hitman, For Honor PlayStation Plus games for February include Hitman, For Honor Of course, that doesn't mean you can go back and download the whole catalogue of Vita games and PS3 games if you missed them. Though at first it seems kind of odd to make the entire season available for free, it does make some degree of sense.

Measles Cases Confirmed in Georgia Following Northwest Outbreak Measles Cases Confirmed in Georgia Following Northwest Outbreak Tamara Sheffield are urging the public to get vaccines for their kids if they haven't yet. Of the 41 confirmed cases, 37 are people who were not immunized and four are unverified.

Northam: I’m sorry … but I’m not resigning Northam: I’m sorry … but I’m not resigning News 3 reporter Brendan Ponton went to the EVMS library in Norfolk Friday afternoon and found the page on which the photo appears. In his statement, Northam said he understood that the photograph "shakes Virginians' faith" in him.

Red Cross warns US about risks of sending aid to Venezuela Red Cross warns US about risks of sending aid to Venezuela The United States has also rejected the offers from Mexico, Uruguay and the Vatican to mediate a dialogue. Bolton added that the Trump administration has a range of economic and political measures for Venezuela.

Ohio Woman Found Dead As Polar Vortex Begins Retreat Ohio Woman Found Dead As Polar Vortex Begins Retreat Rail service Amtrak planned to begin partially restoring service after canceling all lines Wednesday in and out of Chicago. Although many places remained bitterly cold Thursday, the deep freeze eased somewhat, and the system moved eastward.

A third of United Kingdom companies could 'shift operations abroad' after Brexit A third of United Kingdom  companies could 'shift operations abroad' after Brexit The decision is a major step forward for people who faced uncertainty over holiday bookings amid chaos in Parliament on the Brexit deal.

Horse racing Darren Weir arrested after police raids at horse stables Horse racing Darren Weir arrested after police raids at horse stables If that proves not to be the case, then you have been hoodwinked, and none of us like being hoodwinked". The industry has previously been marred by allegations of corruption and cheating.

Elizabeth Warren Apologizes to Cherokee Nation over DNA Test Results Elizabeth Warren Apologizes to Cherokee Nation over DNA Test Results Ms Warren shared the DNA results after Mr Trump challenged her at a July rally to take a test to prove her indigenous background. Elizabeth Warren has apologized about the whole Native American ancestry thing-in private at least, the Intercept reports.

Panthers legend Julius Peppers announces he's retiring from the NFL Panthers legend Julius Peppers announces he's retiring from the NFL He was named to the NFL Pro Bowl on nine occasions beginning in 2004, and as recent as 2015. He forced 51 fumbles, recovered 21, and collected 11 interceptions for 293 return yards.

Canadian Olympic Committee produces short documentary for Bell Let's Talk Day Canadian Olympic Committee produces short documentary for Bell Let's Talk Day Today is Bell Let's Talk Day , the time of the year when focusing on mental health takes the national spotlight. Many people are getting the message, based on the increased demand in services the CMHA Lambton Kent has seen.

What's going on with the latest measles outbreak? DPH urges healthcare providers to maintain heightened awareness for patients with measles or symptoms of measles. Measles is highly contagious, so we lose herd immunity when about 5 percent of the population is unvaccinated.

Arsenal fans think Denis Suarez and Aaron Ramsey are the same person Arsenal fans think Denis Suarez and Aaron Ramsey are the same person The loan deal includes the option to sign Suarez full-time in the summer as the Spain worldwide links up with Emery again, having played under his compatriot at Sevilla.