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What will be NASA’s next Big Solar System Mission? 12 proposals for Future unmanned Solar System Mission to be launched in mid-2020s

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Washington, May 6, 2017: A new mission to Saturn’s moons Titan or Enceladus to find signs of life beyond Earth cannot be ruled out as NASA says it is reviewing 12 proposals for future unmanned solar system mission to be launched in the mid-2020s.

The proposed missions of discovery — submitted under NASA’s New Frontiers programme – will undergo scientific and technical review over the next seven months, the US space agency said in a statement on Friday.

Selection of one or more concepts for Phase A study will be announced in November. At the conclusion of Phase A concept studies, it is planned that one New Frontiers investigation will be selected to continue into subsequent mission phases.

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Investigations for this announcement of opportunity were limited to six mission themes – comet surface sample return; lunar South Pole-Aitken basin sample return; ocean worlds (Titan and/or Enceladus); Saturn probe; Trojan tour and rendezvous; and Venus in situ explorer “New Frontiers is about answering the biggest questions in our solar system today, building on previous missions to continue to push the frontiers of exploration,” said Thomas Zurbuchen, Associate Administrator for NASA’s Science Mission Directorate in Washington.

“We’re looking forward to reviewing these exciting investigations and moving forward with our next bold mission of discovery,” Zurbuchen said.

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The New Frontiers Programme conducts principal investigator (PI)-led space science investigations under a development cost cap of approximately $1 billion.

This would be the fourth mission in the New Frontiers portfolio. Its predecessors are the New Horizons mission to Pluto, the Juno mission to Jupiter, and OSIRIS-REx, which will rendezvous with and return a sample of asteroid Bennu. (IANS)

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Hubble Returns To Normal Functioning Soon: NASA

After the engineering tests have been completed, Hubble is expected to soon return to normal science operations, NASA stated

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Hubble's backup gyro, which had been off for more than 7.5 years, was incorrectly returning extremely high rotation rates. Flcikr

NASA has brought Hubble Space Telescope’s seven-year old backup gyroscope (gyro) back to life, after the spacecraft entered safe mode due to a failed gyro earlier this month, the US space agency said on Tuesday.

A gyro is a device that measures the speed at which the spacecraft is turning and is needed to help Hubble turn and lock on to new targets.

Hubble’s backup gyro, which had been off for more than 7.5 years, was incorrectly returning extremely high rotation rates, NASA said in a statement.

Hubble
The Hubble Telescope hovering in space. Wikimedia Commons

This gyro was turned on after the spacecraft entered safe mode due to a failed gyro on October 5.

Additional tests will be performed to ensure Hubble can return to science operations with this gyro, NASA said.

To correct high rotation rates, the Hubble team executed a running restart of the gyro on October 16.

This procedure turned the gyro off for one second, and then restarted it before the wheel spun down.

However, the data showed no improvement in the gyro’s performance.

Hubble Telescope. red dwarf
This gyro was turned on after the spacecraft entered safe mode due to a failed gyro on October 5. Flickr

The team, then on October 18, commanded a series of spacecraft maneuvers, or turns, in opposite directions to attempt to clear any blockage that may have caused the float to be off-centre and produce the exceedingly high rates.

During each maneuver, the gyro was switched from high mode to low mode to dislodge any blockage that may have accumulated around the float.

They noticed a significant reduction in the high rates, allowing rates to be measured in low mode for brief periods of time.

On October 19, the team again commanded Hubble to perform additional maneuvers and gyro mode switches, which appear to have cleared the issue.

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The planet Mars is shown May 12, 2016 in this NASA Hubble Space Telescope view when it was 50 million miles from Earth. VOA

The rotation rates produced by the backup gyro have since reduced and are now within an expected range, NASA noted.

Also Read: New Gamma-Ray Collection Named After Hulk, Godzilla: NASA

The team plans to execute a series of tests to evaluate the performance of the gyro under conditions similar to those encountered during routine science observations, including moving to targets, locking on to a target, and performing precision pointing.

After these engineering tests have been completed, Hubble is expected to soon return to normal science operations, NASA stated. (IANS)