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Space station crew will experience New Year’s Eve 16 times, says NASA

The six astronauts and cosmonauts will go into the last weekend of 2017 with light duty and family conferences before taking the New Year’s Day off.

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The ISS currently has current six crew members on the orbital laboratory. Wikimedia Commons
The ISS currently has current six crew members on the orbital laboratory. Wikimedia Commons

As the astronauts aboard the International Space Station (ISS) orbit Earth once every 90 minutes, they will experience New Year’s Eve 16 times, NASA pointed out. That is 16 sunrise and sunsets 402.3 km above Earth, the US space agency said in a blog post on Thursday. The six astronauts and cosmonauts will go into the last weekend of 2017 with light duty and family conferences before taking the New Year’s Day off.

The current six crew members on the orbital laboratory comprise three US astronauts, two Russian cosmonauts and a Japanese astronaut. Ahead of the New Year, the astronauts are conducting life science studies to help mission doctors keep astronauts healthier and stronger while living in outer space.

Japanese astronaut Norishige Kanai took his turn on the exercise bike on Thursday for a study researching physical exertion in space. Doctors measure the astronauts breathing and other parameters during exercise to ensure they have the strength to perform strenuous activities such as spacewalks and even emergency procedures.

ISS is a permanent base for astronauts stationed in the outer sky. Wikimedia Commons
ISS is a permanent base for astronauts stationed in the outer sky. Wikimedia Commons

Flight Engineer Scott Tingle of NASA was harvesting plants for the Advanced Plants Experiment-05 (APEX) and stowing the botany samples in a science freezer for further analysis, the blog post said.

Scientists are exploring how plants respond to microgravity and observing molecular and genetic changes. The two other NASA astronauts living and working aboard the space station are Vande Hei and Joe Acaba. Anton Shkaplerov and Alexander Misurkin of the Russian space agency Roscosmos are the other two other crew members.

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Jupiter not as Dry as it was Predicted to be: NASA Scientists

Jupiter not as dry as earlier thought, reveals new NASA probe

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Jupiter
Jupiter may not be as dry as earlier shown by a NASA probe, according to the first science. (Representational Image). Pixabay

The largest planet in our solar system may not be as dry as earlier shown by a NASA probe, according to the first science results revealed by the US space agency’s Juno mission on the amount of water in Jupiter’s atmosphere.

At the equator, water makes up about 0.25 per cent of the molecules in Jupiter’s atmosphere — almost three times that of the Sun, said the study published in the journal Nature Astronomy.

These are also the first findings on the gas giant’s abundance of water since NASA’s 1995 Galileo mission suggested Jupiter might be extremely dry compared to the Sun. The comparison is based not on liquid water but on the presence of its components, oxygen and hydrogen, present in the Sun.

“We found the water in the equator to be greater than what the Galileo probe measured,” said Cheng Li, a Juno scientist at the University of California, Berkeley. “Because the equatorial region is very unique at Jupiter, we need to compare these results with how much water is in other regions,” Li said.

An accurate estimate of the total amount of water in Jupiter’s atmosphere has been on the wish lists of planetary scientists for decades. The figure in the gas giant represents a critical missing piece to the puzzle of our solar system’s formation.

Jupiter
These are also the first findings on the gas giant’s abundance of water since NASA’s 1995 Galileo mission suggested Jupiter might be extremely dry compared to the Sun. (Representational Image). Pixabay

Jupiter was likely the first planet to form, and it contains most of the gas and dust that was not incorporated into the Sun.

Water abundance also has important implications for the gas giant’s meteorology (how wind currents flow on Jupiter) and internal structure. While lightning — a phenomenon typically fuelled by moisture — detected on Jupiter by Voyager and other spacecraft implied the presence of water, an accurate estimate of the amount of water deep within Jupiter’s atmosphere remained elusive.

Before the Galileo probe stopped transmitting 57 minutes into its Jovian descent in December 1995, it radioed out spectrometer measurements of the amount of water in the gas giant’s atmosphere down to a depth of about 120 kilometres. The scientists working on the data were dismayed to find ten times less water than expected.

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A rotating, solar-powered spacecraft Juno was launched in 2011. Because of the Galileo probe experience, the mission seeks to obtain water abundance readings across large regions of the immense planet.

The Juno science team used data collected during Juno’s first eight science flybys of Jupiter to generate the findings. (IANS)