Web4Men - Men's LifeStyle Magazine
 -  11/27/2021
Bookmark this site
CZ EN
 
Home page  Science and Technics  
foto
NASA's Phoenix Mars Lander has dug up new clues to the red planet's wet past and has witnessed what could be a current water cycle in the form of falling snow, scientists announced today.

From its landing site near Mars's north pole, the lander has collected and analyzed soil samples that show minerals on Mars that are associated with liquid water on Earth.

Phoenix also recorded the planet's real-time transition from summer to fall, which revealed tantalizing evidence of an ongoing hydrological cycle, said Peter Smith, Phoenix's principal investigator based at the University of Arizona.

Jim Whiteway, lead scientist for the Phoenix Meteorological Station, said that instruments on board the craft recorded rising temperatures and humidity in the two months leading up to the Martian summer solstice in July.

Temperatures have been falling ever since.

"In the second half of the mission we saw frost, ground fog, and clouds. This is now occurring every night," Whiteway said.

Ice crystals were detected coming from clouds about 2.5 miles (4 kilometers) above the spacecraft's landing site. The crystals are most likely water-based, the scientists said, because it's not yet cold enough on Mars for carbon-dioxide snow to form.

The team hopes Phoenix will help confirm whether the snow hits the ground before the craft—which has already survived beyond its expected lifespan—freezes up forever during the cold Martian winter.

"We're going to be watching very closely for the next months to see if the snow is falling on the Martian surface," Whiteway said.

... more here: http://news.nationalgeographic.com/news/2008/09/080929-mars-snow.html
Nick: JirkaPraha, 30.9.2008 09:37:08
Diskuse pod příspěvkem - Přidat komentář

Jméno / nick:
Předmět:
Komentář:

Příspěvek zatím nebyl komentován, můžeš být první.



foto
iRobot company featured idea, how resolve funding of health insurance in future. He means that robotic nurses are the best resolve. New robotic nurses could have to save millions in state budget...
Science and Technics
29.3.2010 09:19:03 | Nick: JirkaPraha
foto
Swiss adventurer Bertrand Piccard wants fly over Atlantic ocean and than even World with solar plane called Solar Impulse. Look, how will appear fly of Solar Impulce. More about this project on...
Science and Technics
28.1.2010 09:45:44 | Nick: JirkaPraha
foto
Anchorage (USA) – Melting of arctic glaciers that is commonly seen as an adverse effect of the global warming has at least one positive effect. Due to the melting, scientists can execute their...
Science and Technics
27.1.2010 10:00:21 | Nick: JirkaPraha
foto
American company called Envion started service of the first recycling machine in Semptember 2009 without interest of media. This machine recycles plastic garbage made from oil and it makes oil again...
Science and Technics
30.12.2009 09:15:03 | Nick: JirkaPraha
foto
Obesity (fatness, liposis) is situation, that natural energy backup of mammal (for example human), which is saved in fat stuff, has increased over standard value and it is dangerous for health....
Science and Technics
28.12.2009 09:49:09 | Nick: JirkaPraha
foto
Reading of ideas went off be variety attraction and using of their power to functioning on neighborhood by effect from paranormal domain. It goes about only about practice using of magnetic...
Science and Technics
23.11.2009 09:15:52 | Nick: JirkaPraha
foto
Rocket, which has to send American astronauts in to the space after end flies of space shuttle, has to take off on Thursday 27.10.2009 without persons. Meteorological news implies start will be on...
Science and Technics
30.10.2009 09:06:06 | Nick: JirkaPraha
foto
Submitter of advert in countryside is interested in, what group addresses this way. System Next Generation Digital Signage Solution for recognizing of faces researched by company NEC could help them....
Science and Technics
29.10.2009 09:31:33 | Nick: JirkaPraha



Pokračujte ve výběru - články



A girl of the day
Interesting movies
Suggestions

 


 

 


 

 



Exclusive accommodation,

Prague centre. Our recommendation.

 


 

For advertisment at our site feel free to send email to
web4men ( at ) gmail.com

Czech Currency Rates
EUR Vlajka meny EUR  
GBP Vlajka meny GBP  
USD Vlajka meny USD  
CAD Vlajka meny CAD  
CHF Vlajka meny CHF  
JPY Vlajka meny JPY  
PLN Vlajka meny PLN  
RUB Vlajka meny RUB  
PX50 Vlajka meny PX50  
Weather
Interesting Info

  Enterntainment

and events in Prague

 

Prague,Czech Republic

 

Weather

Metal beauty