Tuesday June 19, 2018
Home Lead Story Space station...

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.

0
//
101
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
Republish
Reprint

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.

Click here for reuse options!
Copyright 2017 NewsGram

Next Story

Finally The Cause Of Mysterious Martian Rock Formation Discovered

The new finding add to scientists' understanding of Mars's interior and its past potential for habitability

0
Finally The Cause Of Mysterious Martian Rock Formation Discovered
Finally The Cause Of Mysterious Martian Rock Formation Discovered, flickr

Explosive volcanic eruptions that shot jets of hot ash, rock and gas skyward are the probable source of a mysterious Martian rock formation near the planet’s equator, says a new study.

The Medusae Fossae Formation is a massive, unusual deposit of soft rock with undulating hills and abrupt mesas.

Scientists first observed the Medusae Fossae with NASA’s Mariner spacecraft in the 1960s but were perplexed as to how it formed.

The current study, published in the Journal of Geophysical Research: Planets, suggests the formation was deposited during explosive volcanic eruptions on the Red Planet more than three billion years ago.

The formation is about one-fifth as large as the continental US and 100 times more massive than the largest explosive volcanic deposit on Earth, making it the largest known explosive volcanic deposit in the solar system, according to the study authors.

“This is a massive deposit, not only on a Martian scale, but also in terms of the solar system, because we do not know of any other deposit that is like this,” said study lead author Lujendra Ojha, a planetary scientist at Johns Hopkins University in Baltimore, Maryland, US.

Volcanic eruption
Volcanic eruption, pixabay

The researchers believe that the new finding could add to scientists’ understanding of Mars’s interior and its past potential for habitability.

The eruptions that created the deposit could have spewed massive amounts of climate-altering gases into Mars’ atmosphere and ejected enough water to cover Mars in a global ocean more than nine centimeters thick, Ojha said.

Previous radar measurements of Mars’s surface suggested the Medusae Fossae had an unusual composition, but scientists were unable to determine whether it was made of highly porous rock or a mixture of rock and ice.

In the new study, the researchers used gravity data from various Mars orbiter spacecraft to measure the Medusae Fossae’s density for the first time.

They found the rock is unusually porous — it is about two-thirds as dense as the rest of the Martian crust.

They also used radar and gravity data in combination to show the Medusae Fossae’s density cannot be explained by the presence of ice, which is much less dense than rock.

Because the rock is so porous, it had to have been deposited by explosive volcanic eruptions, according to the researchers.

volcano
Active volcano, Pixabay

Greenhouse gases exhaled during the eruptions that spawned the Medusae Fossae could have warmed Mars’s surface enough for water to remain liquid at its surface, but toxic volcanic gases like hydrogen sulfide and sulfur dioxide would have altered the chemistry of Mars’ surface and atmosphere.

Also read: Earthquake Then Volcano, There is No Relief For the Hawaii Residents

Both processes would have affected Mars’ potential for habitability, Ojha said. (IANS)