Εμφάνιση αναρτήσεων με ετικέτα Mars. Εμφάνιση όλων των αναρτήσεων
Εμφάνιση αναρτήσεων με ετικέτα Mars. Εμφάνιση όλων των αναρτήσεων

Παρασκευή, 16 Ιανουαρίου 2015

Missing spacecraft discovered on Mars 11 years later

Britain's "Beagle 2" spacecraft, once dubbed "a heroic failure" by the nation's Astronomer Royal, was re-branded "a great success" on Friday for being found on Mars 11 years after it was originally launched in 2003.
Beagle 2, part of a European Space Agency's Mars Express mission searching for extraterrestrial life, had been due to land on Mars on Christmas Day of 2003, but disappeared on December 19, 2003. Until now, nothing had been heard from it. But at a packed news conference at London's Royal Society scientific institution on Friday, space experts said the tiny Mars lander had been found on the surface of the red planet.

"Beagle 2 is no longer lost," said David Parker, chief executive of UK Space Agency. He said recent images from the HiRISE camera on NASA's Mars Reconnaissance Orbiter showed "good evidence" that the spacecraft landed on Mars on the date it was due, but only partially deployed and failed to report its location to the home base.

Reuters
http://www.globaltimes.cn/content/902376.shtml
16/1/15
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  • The UK-led Beagle-2 Mars lander, which hitched a ride on ESA’s Mars Express mission and was lost on Mars since 2003, has been found in images taken by a NASA orbiter at the Red Planet.
Beagle-2 was released from its mother craft on 19 December 2003 and was due to land six days later. But nothing was heard from the lander after its scheduled touchdown, and searches by Mars Express and NASA’s Mars Odyssey mission were fruitless. 

Now, over a decade later, the lander has been identified in images taken by the high-resolution camera on NASA’s Mars Reconnaissance Orbiter. 

 The lander is seen partially deployed on the surface, showing that the entry, descent and landing sequence worked and it did indeed successfully land on Mars on Christmas Day 2003.................http://www.esa.int/Our_Activities/Space_Science/Mars_Express/Beagle-2_lander_found_on_Mars
16/1/15
 

Δευτέρα, 1 Δεκεμβρίου 2014

Eco Geo Flash News - (December 2014 -b)


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NASA is ready to launch the most ambitious test flight in decades as its unmanned capsule Orion is all set for a two-orbit, 4.5-hour trip. With favorable weather forecast, NASA hopes the test flight will bring it one step closer to a Mars journey...

The mission plans to reach an altitude of 3,600 miles from Earth, the farthest space mission since the Apollo 17 trip to the moon in 1972.

The capsule is scheduled to be launched using a Delta IV Heavy rocket from Cape Canaveral Air Force Station's Space Launch Complex...................Orion’s first flight

(December 2014 -a)

Τετάρτη, 24 Σεπτεμβρίου 2014

India makes history with first spaceship to orbit Mars

India triumphed in its first interplanetary mission, placing a satellite into orbit around Mars on Wednesday morning and catapulting the country into an elite club of deep-space explorers.
Scientists broke into wild cheers as the orbiter's engines completed 24 minutes of burn time and maneuvered into its designated place around the red planet.
The success of India's Mars Orbiter Mission, affectionately nicknamed MOM, brings India into an elite club of Martian explorers that includes United States, the European Space Agency and the former Soviet Union.

"Today Mars has met MOM. MOM never disappoints. History has been created today," Prime Minister Narendra Modi announced amid applause at the Indian Space Research Organisation command center in Bangalore."We have gone beyond the boundaries of human enterprise and innovation."
"We have navigated our craft through a route known to very few," Modi said, congratulating both the scientists and "all my fellow Indians on this historic occasion."
The Indian Space and Research Organisation described the mission as flawless.
The success marks a milestone for the space program in demonstrating that it can conduct complex missions and act as a global launch pad for commercial, navigational and research satellites.
It's also a major feat for the developing country of 1.2 billion people, most of whom are poor. At the same time, India has a robust scientific and technical educational system that has produced millions of software programmers, engineers and doctors, catapulting many into the middle class.
More than half the world's previous attempts — 23 out of 41 missions — have failed, including one by Japan in 1999. The United States had its first success with a 1964 flyby by a spacecraft called Mariner 4, returning 21 images of the surface of the planet. The former Soviet Union reached the planet in 1971, and the European Space Agency in 2003.
India was particularly proud that MOM, a 1,350-kilogram (nearly 3,000-pound) satellite, was developed with homegrown technology and for a bargain price of about $75 million. NASA's much larger Mars Atmosphere and Volatile Evolution mission, or Maven, which reached its position around the red planet on Sunday, cost nearly 10 times as much at $671 million.

  • MOM will now circle the planet for at least six months on an elliptical path that gets within 365 kilometers (227 miles) of the planet's surface at its closest and 80,000 kilometers (49,700 miles) at its farthest.
Five solar-powered instruments will gather data that will help determine how Martian weather systems work and what happened to the water that is believed to have once existed on Mars in large quantities. It also will search Mars for methane, a key chemical in life processes on Earth that could also come from geological processes.
None of the instruments will send back enough data to answer these questions definitively, but experts say the data will help them better understand how planets form, what conditions might make life possible and where else in the universe it might exist.

  • There are three more satellites already circling the planet — NASA's Mars Reconnaissance Orbiter and Mars Odyssey, and the ESA's Mars Express. On the Martian surface, NASA's Curiosity and Opportunity rovers are rolling across rocky terrain. 
India has said the spacecraft — also called Mangalyaan, meaning "Mars craft" in Hindi — is chiefly meant to showcase the country's ability to design, plan, manage and operate a deep-space mission. India has already conducted dozens of successful satellite launches, including sending up the Chandrayaan-1 lunar orbiter, which discovered key evidence of water on the Moon in 2008. 
AP
 haaretz.com
24/9/14
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Κυριακή, 21 Σεπτεμβρίου 2014

NASA spacecraft seeks answers to lost water in Mars. (Mars Atmosphere and Volatile Evolution/MAVEN)

A NASA spacecraft designed to investigate how Mars lost its water is expected to put itself into orbit around the Red Planet today after a 10-month journey....

After traveling 711 million km from Earth, the Mars Atmosphere and Volatile Evolution, or MAVEN, probe faces a do-or-die burn of its six braking rockets beginning.
If successful, the thruster burns will trim enough speed for MAVEN to be captured by Mars' gravity and fall into a looping orbit.

Over the next six weeks, as engineers check MAVEN's nine science instruments, the spacecraft will maneuver itself into an operational orbit that comes as close as 150 km and as far away as 6,200 km from Mars' surface.
  • Unlike previous Mars orbiters, landers and rovers, MAVEN will focus on the planet's atmosphere, which scientists suspect was once far thicker than the puny envelope of mostly carbon dioxide gas that surrounds it today.
Denser air would be needed for water to pool on the surface. While no water appears there today, Mars is covered with ancient river channels, lakebeds and chemical evidence of a warmer, wetter past.
  • "Where did the water go? Where did the CO2 (carbon dioxide) go from that early environment?" MAVEN lead science Bruce Jakosky, of the University of Colorado, asked reporters this week. "It can go two places: down in the crust or up to the top of the atmosphere where it can be lost to space," he said.
  • MAVEN's focus is the latter. The spacecraft, built by Lockheed Martin, will spend a year monitoring what happens when the solar wind and other charged particles hit the upper layers of Mars' atmosphere, stripping it away.
By studying the atmosphere today, scientists expect to learn about the processes involved and then use computer models to extrapolate back in time. Ultimately, scientists want to learn if Mars had the right conditions for life to evolve.
MAVEN, said Jakosky, will tell them "the boundary conditions that surround the potential for life."
MAVEN will join a fleet of two US orbiters, two US rovers and a European orbiter currently working at Mars. India's first Mars probe is due to arrive on Wednesday.
buenosairesherald.com
21/9/14
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Πέμπτη, 3 Απριλίου 2014

Scientists Warn NASA on Ethics of Space Travel

The US space agency NASA plans to send humans to an asteroid and Mars, eventually. But a group of prominent U.S. scientists says right now, any deep space mission will be too dangerous, based on NASA's minimum safety requirements. And engineering capabilities and understanding of the effects of long-term cosmic radiation exposure will not advance sufficiently within the next five years to change that assessment.
After a study of long-duration space travel, sponsored by NASA, the panel of scientists from the National Academy of Sciences says the space agency should consider ethics while designing standards for future long missions.


In an open letter, they say NASA should not send humans on trips outside low Earth orbit lasting longer than 30 days without strict adherence to the existing health standards and that the rule should be broken only in rare and extenuating circumstances.
They present six principles upon which the ethics of deep-space travel should be based.
First among them, preventing any harm to astronauts, from vision impairments, loss of bone minerals, radiation exposure and the psychological impact of extended space travel.
Also, the missions should benefit society while balancing those potential benefits with the risk of harm.

Astronauts should be able to decide whether they want to participate in the planned missions with full equality of opportunity, and NASA should take full responsibility for the astronauts' health care during missions and for the rest of their lives.
The scientists say that NASA's health standards should be based upon the most relevant and up-to-date evidence. 

The National Academy of Sciences comprises four national science academies, which provide the policymakers, public and the private sector with independent and objective, evidence-based advice. 


[voanews.com]
3/4/14

Τετάρτη, 12 Φεβρουαρίου 2014

China Loses First Lunar Rover

MOSCOW, February 12 (RIA Novosti) – China officially announced the loss of its maiden lunar rover Wednesday due to technical problems.

“China's first lunar rover, Yutu, could not be restored to full function on Monday as expected,” the state-owned China News Service said.

In December, the 140-kilogram lunar rover, whose name translates as Jade Rabbit, made the first soft landing of any probe on the moon in nearly four decades.

China’s State Administration of Science, Technology and Industry for National Defense reported on January 25 that the space vehicle had experienced a mechanical control abnormality because of the "complicated lunar surface environment."
The problem occurred shortly before the rover, which was meant to roam the lunar surface for three months while surveying natural resources, went into automatic shutdown for the two-week lunar night.
  • The landing of the Jade Rabbit on the moon was hailed as a major success of the ambitious Chinese space program, which includes a permanent space station and manned flights to the moon and Mars.
http://en.ria.ru/world/20140212/187474430/China-Loses-First-Lunar-Rover.html
12/2/14
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Τρίτη, 10 Δεκεμβρίου 2013

NASA rover discovers lake on Mars

Curiosity rover that was launched by NASA came up with another discovery. A lake on Mars with water that seems like drinkable was found and it might even be suitable for simple forms of life.
It was known before that Mars was a planet more like Earth once before and it didn’t look like a desert as it looks right now. Rover found the evidence to that, holes full of water that perhaps is what is left out of the lake after millions of years.


This discovery was announced on Monday by the Science journal. Scientists came up with this news before but this time, they included more details in the report such as the measurements of the rocks and other analysis.

Gale Crater (the former lake) is in an area with rocks about 4.2 billion years old, and the lake seems to have existed about 3.6 billion years ago. The fresh-water lake is a proof of a long lasting water system that was part of rivers and groundwater.

John Grotzinger, a Caltech planetary geologist who is the chief scientist of the Curiosity rover mission stated "If we put microbes from Earth and put them in this lake on Mars, would they survive? Would they survive and thrive? And the answer is yes. In March, we did know that we had a lake, but what we weren’t sure of was how big it was and how long it lasted, and also we were not sure about the broader geological context that supports the presence of lakes coming and going for a very long time."

"This is really similar to an Earth environment," he also confirmed later during one of the conferences.

Voice of Russia, washingtonpost.com
http://voiceofrussia.com/news/2013_12_10/NASA-rover-discovers-lake-on-Mars-8492/

9/12/13

Δευτέρα, 18 Νοεμβρίου 2013

NASA to Look at Climate Change - On Mars



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The U.S. space agency, NASA, expects to launch its next mission to Mars on Monday, sending an orbiter to look at the red planet's upper atmosphere.

Scientists hope that MAVEN, which stands for Mars Atmosphere and Volatile Evolution, can help them better understand what happened to cause Earth's neighbor to lose its surface water and its atmosphere to thin. The causes of the dramatic climate changes on Mars over billions of years - from warm with liquid water on its surface to today's cold and barren desert world - have not previously been studied.

The spacecraft is set to launch from Cape Canaveral at 13:28 EST. Weather forecasters say there is a 60 percent chance that conditions will be good for the launch.

MAVEN will not arrive at its Mars orbit until September 22, 2014. At that point, the 2.5-meter cube will extend its gull-wing-shaped solar panels and begin its data collection.
 voanews.com
18/11/13

Photo, Video: voanews.com

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