Monday April 22, 2019

NASA’S Mars Odyssey Spacecraft Captures First Images of the Martian Moon Phobos after 16 years

Phobos has an oblong shape with an average diameter of about 22 kilometres

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Phobos
On September 29, Phobos was observed by Thermal Emission Imaging System (THEMIS) camera on Mars Odyssey orbiter, which has been launched in 2001. Pixabay

Washington, October 8, 2017 : After orbiting the Red Planet for 16 years, NASA’s Mars Odyssey spacecraft has captured its first images of the Martian moon Phobos.

The Thermal Emission Imaging System (THEMIS) camera on Mars Odyssey orbiter, launched in 2001, observed Phobos on September 29.

Phobos has an oblong shape with an average diameter of about 22 kilometres.

Cameras on other Mars orbiters have previously taken higher-resolution images of Phobos, but none with the infrared information available from THEMIS.

Observations in multiple bands of thermal-infrared wavelengths can yield information about the mineral composition of the surface, as well as the surface texture, NASA said in a statement this week.

“Although THEMIS has been at Mars for 16 years, this was the first time we have been able to turn the spacecraft around to look at Phobos,” said THEMIS Mission Planner Jonathon Hill of Arizona State University.

The researchers combined visible-wavelength and infrared data to produce an image color-coded for surface temperatures of this moon, which has been considered for a potential future human-mission outpost, NASA said.

“This half-moon view of Phobos was chosen because it allowed us to observe a wide range of temperatures on the surface,” Hill added.

ALSO READ NASA Scientists Reveal New Information on Mars’ Formation and Evolution, Claim The Red Planet has a Porous Crust

One major question about Phobos and Mars’ even smaller moon, Deimos, is whether they are captured asteroids or bits of Mars knocked into the sky by impact.

The researchers believe that compositional information from THEMIS might help pin down their origin.

Since Odyssey began orbiting the Red Planet in 2001, THEMIS has provided compositional and thermal properties information from all over Mars, but never before imaged either Martian moon.

The September 29 observation was completed to validate that the spacecraft could safely do so, as the start of a possible series of observations of Phobos and Deimos in coming months.

“There is heightened interest in Phobos because of the possibility that future astronauts could perhaps use it as an outpost,” said Odyssey Project Scientist Jeffrey Plaut of NASA’s Jet Propulsion Laboratory in Pasadena, California. (IANS)

 

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Spacecraft Test Runs into Serious Problems, Smoke All Over SpaceX in Florida

"Ensuring that our systems meet rigorous safety standards and detecting (issues) like this prior to flight are the main reasons why we test"

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space craft
Federal oversight authorities warned NASA last year that more delays could leave US astronauts stranded if the new capsules were not ready to fly in 2019. Pixabay

Thick plumes of smoke rose over a SpaceX facility in Florida during a test fire of a Crew Dragon spacecraft and the issue was serious, it could derail plans to fly astronauts aboard the capsule later this year, the media reported.

SpaceX, which was founded by billionaire businessman Elon Musk in 2002, said the craft was undergoing a “series of engine tests” at a facility in Cape Canaveral on Saturday, and something went wrong during the final stretch, CNN reported.

SpaceX will work with NASA to determine what caused the issue. No injuries were reported.

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The US has not had the technology to fly humans to orbit since the space shuttle programme ended in 2011. Meanwhile, NASA has paid Russia about $80 million per seat to send astronauts to the International Space Station aboard Soyuz capsules. Pixabay

“Ensuring that our systems meet rigorous safety standards and detecting (issues) like this prior to flight are the main reasons why we test,” SpaceX said in a statement.

Crew Dragon is already overdue and more delays could make things tricky for NASA.

It was scheduled to conduct a key test of its emergency abort system in June. And its first crewed mission, which will carry astronauts Doug Hurley and Bob Behnken, was slated for July, though NASA recently said that timeline was under review.

space craft
Federal oversight authorities warned NASA last year that more delays could leave US astronauts stranded if the new capsules were not ready to fly in 2019. Pixabay

The US has not had the technology to fly humans to orbit since the space shuttle programme ended in 2011. Meanwhile, NASA has paid Russia about $80 million per seat to send astronauts to the International Space Station aboard Soyuz capsules.

NASA has also decided to ask the private sector to design and build a new generation of spacecrafts.

Also Read: Avoid Smoking During Pregnancy To Prevent Premature Births

SpaceX and Boeing, which is building a vehicle called Starliner, were awarded contracts worth up to $2.6 billion and $4.2 billion, respectively, in 2014. Both capsules were supposed to start flying in 2017, but they have been hampered with delays.

Federal oversight authorities warned NASA last year that more delays could leave US astronauts stranded if the new capsules were not ready to fly in 2019. (IANS)