profishingrods.com
profishingrods.com April 26, 2019


Chinese Probe Records Minus 310-Degree Temps on the Moon

02 February 2019, 02:16 | Dale Webster

Chang'e 4 checks out the far side of the moon. China Aerospace Science and Technology Corporation

Chang'e 4 checks out the far side of the moon.                  China Aerospace Science and Technology Corporation

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.

China landed its Yutu, or "Jade Rabbit", rover on the moon five years ago and plans to send its Chang'e 5 probe there next year and have it return to Earth with samples - the first time that will have been done since 1976.

The two instruments successfully withstood the test of the extremely low-temperature environment on the far side of the Moon.

The country made history on January 3 when the Chang'e 4 lunar probe landed in Von Karman crater on the moon's mysterious far side.

The Chang'e-4 probe recorded lunar night temperatures that reached minus 310 degrees, Xinhua reported.

China's Chang'e-4 probe, launched on Dec 8 in 2018, landed on the Von Karman Crater in the South Pole-Aitken Basin on the far side of the moon on Jan 3. Previously, the Chinese scientists had no data on exactly how cold it could be.

The measurement of the temperature changes between the day and night on the moon will help scientists estimate the properties of the lunar soil, Zhang said. "We still need more careful analysis", Zhang added.




A lunar day equals 14 days on Earth, and a lunar night is the same length.

NASA said it discussed in the past month with China to explore the possibility of observing a signature of the landing plume of Chang'e-4, as in a manner similar to what was done for Chang'e-3. When lunar night fell, temperatures plummeted as low as -170°C and the plant's short life came to an end.

Both the lander and rover used radioisotope heater units (RHU) to protect against the deep cold of the lunar night.

The scientific tasks of the Chang'e-4 mission include low-frequency radio astronomical observation, surveying the terrain and landforms, detecting the mineral composition and shallow lunar surface structure, and measuring neutron radiation and neutral atoms. "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.

"It is a technology that we must master if we want to go to the moon's polar regions or farther than Jupiter into deep space, where solar power can not be used as the primary power source", he said.

In other words, something about the lunar dirt where Chang'e 4 sits is probably causing the soil to retain less heat overnight than the Apollo landing sites did.



Other News

Trending Now

Corsica gunfire: Bastia attack leaves one dead and several hurt
Police have surrounded the building. "He committed suicide", the minister told the National Assembly in Paris. In Bastia on the French island of Corsica, an unknown man opened fire on passersby, wounding 5 people.

Elizabeth Warren has apologized to the Cherokee Nation for her DNA test
Her point echoed what tribal advocates and leaders had said - and were continuing to say as their frustration grew - for months. Senator Elizabeth Warren (D-MA) speaks at an Organizing Event in Claremont, New Hampshire, U.S., January 18, 2019.

Xbox Down: Gamers report major outage on console
It appears as though the problems have since intensified, as the Xbox Live Status page itself has now gone down completely. We will keep everyone informed once we have more information to share. "We'll have additional updates to provide soon".

Bankruptcy judge to hear PG&E motions on Thursday
Bankruptcy may not spare PG&E from carrying out any orders issued by Alsup. Bankruptcy Court for the Northern District of California . Williams had served as PG&E's CEO since March 2017.

U.S. Blocks Venezuela Oil Deals Using Its Financial System
On Thursday, hundreds of workers from the state-owned oil company PDVSA marched in Caracas in support of President Nicolás Maduro. Chevron has four joint-venture operations for exploration and production with PDVSA, as the Venezuelan company is known.

Real Madrid draw Barcelona in Copa del Rey semis
The draw for the semis will be held on Friday at Betis' Benito Villamarin stadium, where this year's final will be played. Barcelona face Valencia at home on Saturday at Lionel Messi looks to score for his eighth league fixture in a row.

Fiji Water Girl Is Suing the Company That Made Her a Star
On Jan. 6, Cuthbert became the talk of the night after she stood behind stars on the red carpet with her tray of Fiji Water . She also added that unlike what Fiji Water claims, she did not "sign away her rights to "Fiji Water Girl" .

ISIS Ready to Retake Syria in 6-12 Months
President Trump said last month that United States troops were leaving Syria. "Within a couple weeks, it'll be 100 percent", Shanahan added.

TV producer fired calling NFL's Tom Brady a 'known cheater'
Pittsburgh has a history of calling out Tom Brady for his dominance of the Steelers en route to making countless Super Bowls. Brady is preparing to play in his ninth career Super Bowl this Sunday in Atlanta. " I mean, it's Pittsburgh ", he said.

Northam: ‘I Don’t Have Any Regrets’ About Abortion Comments
A reporter asked Northam if he regretted his now-infamous comments or wished he'd said them a different way. Eastern Virginia Medical School has confirmed that the photo comes from its 1984 student-produced yearbook.