ESA Lander Prepares For
Historic Mars Landing
Europe's first Mars rover will search for
traces of life on the planet.
FRANKFURT - A Mars lander is due to leave its mothership on Sunday and head toward the red planet's surface to test technologies for Europe's planned first Mars rover, which will search for signs of past and present life. After a seven-month journey from Earth as part of the European-Russian ExoMars program, the Schiaparelli lander is expected to separate from spacecraft Trace Gas Orbiter (TGO) at 10:42 a.m. EDT and start a three-day descent to the surface. Schiaparelli represents only the second European attempt to land a craft on Mars, after a failed mission by the British landing craft Beagle 2 in 2003. Landing on Mars, Earth's neighbor some 35 million miles (56 million km) away, is a notoriously difficult task that has bedevilled most Russian efforts and given NASA trouble as well. The United States currently has two operational rovers on Mars, Curiosity and Opportunity. But a seemingly hostile environment has not detracted from the allure of Mars, with U.S. President Barack Obama recently highlighting his pledge to send people to the planet by the 2030s. Elon Musk's SpaceX is developing a massive rocket and capsule to transport large numbers of people and cargo to Mars with the ultimate goal of colonizing the planet, with Musk saying he would like to launch the first crew as early as 2024. The primary goal of ExoMars is to find out whether life has ever existed on Mars. The current spacecraft carries an atmospheric probe to study trace gases such as methane, around the planet. Scientists believe that methane, a chemical that on Earth is strongly tied to life, could stem from micro-organisms that either became extinct millions of years ago and left gas frozen below the planet's surface, or that some methane-producing organisms still survive. The second part of the ExoMars mission, delayed to 2020 from 2018, will deliver a European rover to the surface of Mars. It will be the first with the ability to both move across the planet's surface and drill into the ground to collect and analyze samples. The ExoMars 2016 mission is led by the European Space Agency (ESA), with Russia's Roscosmos supplying the launcher and two of the four scientific instruments on the trace gas orbiter. The prime contractor is Thales Alenia Space, a joint venture between Thales and Finmeccanica. The cost of the ExoMars mission to ESA, including the second part due in 2020, is expected to be about 1.3 billion euros ($1.4 billion). Russia's contribution comes on top of that. In 2018, NASA also plans to launch a Mars spacecraft, a satellite known as InSight and designed to study the deep interior of Mars.
Faulty cable delays Antares launch 24 hours
Orbital ATK launch managers have
pushed back liftoff of an Antares rocket until Monday to replace a faulty cable
on the booster's launch pad in Virginia.
The delay means the International Space Station crew will not receive
the Cygnus supply ship mounted atop the Antares rocket until Sunday, after three
new residents dock with the orbiting laboratory Friday aboard the Soyuz MS-02
spaceship.
Orbital ATK announced the one-day delay Sunday just before the
Antares launch team was scheduled to formally start the six-hour
countdown.
"Today's launch of Orbital ATK's Antares rocket is postponed 24 hours
due to a ground support equipment (GSE) cable that did not perform as expected
during the pre-launch check out," Orbital ATK said in a statement. "We have
spares on hand and rework procedures are in process."
The problem is located on the launch pad's hold-down
system.
Liftoff is now reset for 7:40:33 p.m. EDT (2340:33 GMT) Monday,
roughly the moment the space station's orbital plane passes over launch pad 0A
at the Mid-Atlantic Regional Spaceport on Wallops Island, Virginia.
There is a 95 percent chance of favorable weather Monday evening,
officials said.
With the launch delay to Monday, the Cygnus spacecraft - named the
S.S. Alan Poindexter after a late space shuttle astronaut - will have to loiter
in orbit to wait for the space station to be ready for its arrival.
A three-man crew is set for launch from the Baikonur Cosmodrome in
Kazakhstan on Wednesday, beginning a two-day pursuit of the space station, with
docking of their Soyuz capsule expected Friday.
Officials said Saturday that if the Antares launch was delayed past
Sunday, the Cygnus supply ship would wait for the Soyuz docking before
approaching the space station.
The launch will be the first flight of an upgraded Antares rocket
with new RD-181 engines replacing the troubled AJ26 engines blamed for an
explosive launch failure in October 2014.
The launch was previously delayed from last week as Hurricane Nicole
blew over Bermuda, where a downrange NASA ground station is positioned to track
the Antares rocket as it flies overhead.
Officials reported only minor damage to the tracking
site.
The Cygnus supply ship enclosed in the Antares rocket's nose cone is
packed with more than 5,100 pounds of provisions and experiments for the space
station crew. The flight will mark Orbital ATK's sixth resupply launch to the
complex under a multibillion-dollar contract with NASA.
The last two Cygnus missions flew on United Launch Alliance Atlas 5
rockets while engineers outfitted existing Antares boosters with new RD-181
engines.
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China launches two-man crew to station module
A Chinese Long March rocket boosted two astronauts, or "taikonauts,"
into orbit Sunday evening for a planned month-long stay aboard the Tiangong-2 --
"Heavenly Palace" -- space station module, China's sixth and longest piloted
space flight to date.
The Long March 2F booster lifted off from the Jiuquan Satellite
Launch Center in China's Gobi Desert at 7:30 p.m. EDT (GMT-4; 7:30 a.m. Monday
local time), roughly the moment Earth's rotation carried the pad into the plane
of Tiangong-2's 240-mile-high orbit.
Video from on-board cameras showed mission commander Jing Haipeng,
making his third spaceflight, and flight engineer Chen Dong, making his first,
calmly monitoring cockpit displays as the Shenzhou-11 spacecraft streaked toward
orbit.
Nine minutes after liftoff, Shenzhou-11 separated from the rocket's
upper stage, unfolded its solar arrays and set off after Tiangong-2. If all goes
well, the crew will monitor an automated docking on Tuesday, kicking off a
month-long stay in orbit.
"The rocket is flying according to its original plan and the Shenzhou
spacecraft has entered into its preliminary orbit," Gen. Zhang Youxia, chief
commander of China's human space program, said through an interpreter. "The
solar panel has been unfolded and the crew is in great condition. Hereby I
announce the launch of Shenzhou-11 is a complete success."
Chinese President Xi Jinping sent congratulations to the launch team,
saying the Shenzhou-11 mission with Tiangong-2 "marks a new milestone in our
manned space flight mission in China."
Tiangong-2 is China's second experimental space station module, an
upgraded habitat with improved life support systems, power, communications and
research equipment.
The goal of the mission is to carry out a variety of experiments
while testing the module's critical systems to pave the way toward construction
of a large multi-module space station around the end of the decade.
Mission commander Jing spent 15-and-a-half days in space during the
Shenzhou-7 and Shenzhou-9 missions in 2008 and 2012.
"The Olympic games are held every four years," he said through an
interpreter at a pre-launch news conference. "I conducted my first space mission
in 2008. Then again, my second in 2012. Now, another four years has just passed.
I think I need to learn from (the) Chinese Olympic shooter who has participated
in nine Olympic games. I still have a long way to go!"
Flight engineer Chen is a veteran fighter pilot making his first
space flight.
"My current focus is on how to complete the mission perfectly," he
said before launch. "I'm feeling relatively calm. But I was very excited when I
was chosen. I felt so, so lucky. ... I didn't know much about aerospace, so I
needed to spend extra time and energy to study basic theories. There was quite a
tight schedule. We felt much pressure at that time."
Like Russia's Soyuz ferry craft, the Shenzhou spacecraft can carry
three crew members. But to pull off a month-long mission aboard the prototype
station module, China opted to launch just two crew members and to carry
additional supplies instead.
"After entering Tiangong-2, the taikonauts will carry out many
experiments, which show the roles, effects and value of humans in many space
activities," said Wu Ping, a spokeswoman for China's Manned Space Engineering
Office.
The crew members will carry out materials science experiments,
medical research, three student experiments, plant growth studies and test
orbital repair techniques.
At the conclusion of their mission, Jing and Chen will undock and
return to Earth in the Shenzhou spacecraft's central descent module, landing
under parachutes, Soyuz fashion, in Inner Mongolia.
The Shenzhou-11 flight is the latest in a series of incremental steps
leading to assembly of an operational, Mir-class space station, an orbital
laboratory that will reach maturity around the time the much larger
International Space Station is being retired.
Taking a step-by-step approach, China became the third nation, after
the United States and the Soviet Union/Russia, to launch a piloted spacecraft in
October 2003 when Yang Liwei blasted off aboard the Shenzhou-5
spacecraft.
Shenzhou-6, carrying two crew members, was successfully launched in
October 2005 and Shenzhou-7, carrying Jing, Zhai Zhigang and Liu Boming, flew in
September 2008.
Tiangong-1, China's first prototype station module, was launched in
September 2011 to serve as a target for rendezvous and docking missions. One
month after launch, the unmanned Shenzhou-8 spacecraft carried out an automated
rendezvous and televised docking with the research module.
China followed that flight by launching Jing, Liu Wang and Liu Yang
on the Shenzhou 9 mission in June 2012. They carried out the program's first
piloted rendezvous and docking.
Tiangong-2 will host astronauts "for up to 30 days whereas in the
past it was short visits only," said Joan Johnson-Freese, a professor at the
Naval War College and a noted expert on China's space program. "Life support
systems was one of the areas that China really had no experience in whatsoever,
so they've been taking it very slow and cautiously."
If all goes well, China will launch the unpiloted Tianzhou-1 cargo
ship next spring to autonomously dock with Tiangong-2. Like Russian Progress
space freighters, Tianzhou 1 will be capable of automatically transferring
propellants, a crucial requirement for space station assembly and
maintenance.
"That will further their docking capabilities needed for the larger
space station," Johnson-Freese said. "Tiangong-2 is supposed to be able to stay
in orbit for two years or longer, so that's taking them really close to 2019 or
so. I think this will be their last big technology test phase before going to
their large space station."
Tiangong-1, launched in September 2011, gave the Chinese experience
with autonomous dockings. It was visited by two crews, including China's first
two female astronauts, with stays lasting up to 15 days or so.
Like Tiangong-1, Tiangong-2 measuring 34 feet long and 11 feet across
at its widest. But Tiangong-2 is a much more advanced spacecraft, with enhanced
life support equipment, refueling systems, more than 40 experiments and
accommodations to support two astronauts for a month at a time.
"The astronauts can now have a better dining and sleeping environment
in the spacelab, and they have also physical exercises for experiments and
recreation facilities," Wu Ping said in translated remarks last month. "These
changes will make the 30-day life for the astronaut in space more comfortable,
convenient and more colorful."
The Shenzhou spacecraft and the two Tiangong spacelab modules are
critical elements of China's Project 921, which is aimed at perfecting low-Earth
orbit space transportation, rendezvous and docking technology, in-orbit
maintenance before the eventual construction of a large 65-ton space
station.
For comparison, the International Space Station operated by the
United States, Russia, Europe, Canada and Japan, is the size of a football
field, weighs more than 450 tons and has a multi-module pressurized volume
comparable to a 747 jumbo jet. It has been staffed with rotating crews of up to
six astronauts and cosmonauts for the past 16 years.
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