Our Favorite Valentines Throughout The Universe

Spacewalk Reassignments: What’s the Deal?

On Friday, March 29, Christina Koch and Anne McClain were scheduled to perform a spacewalk together to upgrade the power systems of the International Space Station. It would have been the first all-female spacewalk in human history. While disappointing to many people, after the last spacewalk was completed on March 22, NASA changed the assignments to protect the safety of the crew and the timing of the mission. Now, Christina Koch and Nick Hague will be performing this upcoming spacewalk, leaving lots of people wondering: What’s the deal?

1. Why did the availability of spacesuit sizes affect the schedule?

Spacesuits are not “one size fits all.” We do our best to anticipate the spacesuit sizes each astronaut will need, based on the spacesuit size they wore in training on the ground, and in some cases astronauts train in multiple sizes.

McClain trained in both a medium and a large on Earth. However, living in microgravity can change the size of your body! In fact, Anne McClain has grown two inches since she launched to the Space Station.

McClain realized that the medium she wore during the March 22 spacewalk was a better fit for her in space. She had planned to wear a large during the March 29 spacewalk.

In a tweet, McClain explained: “This decision was based on my recommendation. Leaders must make tough calls, and I am fortunate to work with a team who trusts my judgement. We must never accept a risk that can instead be mitigated. Safety of the crew and execution of the mission come first.”

To provide each astronaut the best fitting spacesuit during their spacewalks, Koch will wear the medium torso on March 29, and McClain will wear it again on April 8.

2. Why is spacesuit sizing so important?

The spacesuit is a mini spaceship that keeps our astronauts alive while they are spacewalking!

Astronauts train several hours on Earth in the Neutral Buoyancy Lab for every hour they spend spacewalking. Spacewalks are the most physically demanding thing we ask astronauts to do, which is why an optimally fitted spacesuit is important to completing the assigned tasks and overall mission!

3. How come you don’t have enough spacesuits in the right size?

We do have enough torsos. The spacesuit takes into account more than 80 different body measurements to be configured for each astronaut. The suit has three sizes of upper torso, eight sizes of adjustable elbows, over 65 sizes of gloves, two sizes of adjustable waists, five sizes of adjustable knees and a vast array of padding options for almost every part of the body.

In space, we have two medium hard upper torsos, two larges and two extra larges; however, one of the mediums and one of the extra larges are spares that would require 12 hours of crew time for configuration.

Configuring the spare medium is a very methodical and meticulous process to ensure the intricate life support system — including the controls, seals, and hoses for the oxygen, water and power as well as the pressure garment components — are reassembled correctly with no chance of leaks. 

Nothing is more important than the safety of our crew!

12 hours might not seem like a long time, but the space station is on a very busy operational schedule. An astronaut’s life in space is scheduled for activities in five minute increments. Their time is scheduled to conduct science experiments, maintain their spaceship and stay healthy (they exercise two hours a day to keep their bones and muscles strong!).

The teams don’t want to delay this spacewalk because two resupply spacecraft – Northrop Grumman Cygnus and SpaceX cargo Dragon – are scheduled to launch to the space station in the second half of April. That will keep the crew very busy for a while!

4. Why has there not already been an all-female spacewalk?

NASA does not make assignments based on gender.

The first female space shuttle commander, the first female space station commander and the first female spacewalker were all chosen because they the right individuals for the job, not because they were women. It is not unusual to change spacewalk assignments as lessons are learned during operations in space.

McClain became the 13th female spacewalker on March 22, and Koch will be the 14th this Friday – both coincidentally during Women’s History Month! Women also are filling two key roles in Mission Control: Mary Lawrence as the lead flight director and Jaclyn Kagey as the lead spacewalk officer.

5. When will the all-female spacewalk happen?

An all-female spacewalk is inevitable! As the percentage of women who have become astronauts increases, we look forward to celebrating the first spacewalk performed by two women! McClain, Koch (and Hague!) are all part of the first astronaut class that was 50 percent women, and five of the 11 members of the 2017 astronaut candidate class are also women.

You can watch the upcoming spacewalk on March 29 at 6:30 ET, which is one in a series to upgrade the station’s power technology with new batteries that store power from the solar arrays for the station to use when it is in orbital night.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

#ITER DG Bernard Bigot opened #IBF2019 this morning, urging ITER’s industrial partners to continue to deliver their contributions on time and at the highest level of quality. #WeAreITER https://t.co/VVAVlnkFlR

Prune your contact list yearlySome people say to do this once a quarter and if you have the time to do it, great, but I usually don’t. I find that the best time to get in touch with people that you haven’t spoken to in a while is to just send them a quick personal email or note once a year, at new years, wishing them a happy new year. Almost everyone celebrates it, it’s politically correct, and if you are lucky it can even rekindle a relationship long dormant, whether its business or pleasure.

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We Just Took a Major Step Forward in our Moon Landing Program

As part of the Commercial Lunar Payload Services (CLPS) initiative, we’ve selected the first American companies that will deliver our science and technology payloads to the Moon.

Seen above from left to right are lander prototypes from:

Astrobotic of Pittsburgh, Pennsylvania

Intuitive Machines of Houston, Texas

Orbit Beyond of Edison, New Jersey

Astrobotic of Pittsburgh has proposed to fly as many as 14 payloads to a large crater on the near side of the Moon.

Intuitive Machines of Houston has proposed to fly as many as five payloads to a scientifically intriguing dark spot on the Moon.

Orbit Beyond of Edison, New Jersey, has proposed to fly as many as four payloads to a lava plain in one of the Moon’s craters.

Each company is charged with demonstrating technology that will shape the development of future landers and other exploration systems needed for humans to return to the Moon’s surface under the new Artemis program. Artemis is the program that will send the first woman and the next man to the Moon by 2024 and develop a sustainable human presence on the Moon by 2028. The program takes its name from the twin sister of Apollo and goddess of the Moon in Greek mythology.

Together we are going to the Moon—to stay.

Watch the CLPS announcement on our YouTube channel to learn about how each company will prepare us for human missions to the Moon: https://www.youtube.com/watch?v=qODDdqK9rL4

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com. 

TRANQUILITY

chapter three

The waves crashed against her body, as she tried to find a wave to ride out, both her she JB being completely beat by the waves. She saw into the distant, him looking toward a boat, both kids looking at each other then back at the death wish of a boat.

xxx

She decided to wait out the storm at John b's house, and walking in to see jj, she assumed he had the same idea.

"Why are you here." He didn't look toward Alex, but knew it was her.

"She's staying here, and sharing a bed with your ass so better cheer up." John b responded before alex could

"No no no no, i'm not sharing a bed with her, i'll sleep on the floor." He complained.

She simply sat down on the bed, as John b went into his room.

She soon realized she had no clothes to change into, which meant she either slept in her underwear or wet clothes.

"Why are you thinking so hard?" JJ questioned.

She snapped out of her thoughts and looked toward the boy who was snuggled up in the bed he just said he wasn't sleeping in.

"I have nothing to change into." She mumbled, not breaking eye contact.

"Well doesn't that suck." He replied, turning away from the girl.

So she slipped out of the wet bathing suit and clothes, and put on her underwear and sports bra. The boy turned around, realizing she had just changed into the slightest amount of clothes.

His jaw clenched as she climbed in bed. He sat up and roughly pulled his crew neck of his body, throwing it toward the girl.

She didn't say anything, but simply smiled and put it on, before snuggling into the comforter.

The truth is, he couldn't stand knowing she was half naked right next to him, and definitely didn't want anyone else to see her like that.

xxx

Alex was woken up by john b opening the front door, and jj grunting, She sat up and stretched before following him out the door.

"Damn." She whistled

John b turned to face her before laughing.

"Nice shirt." He joked.

She quickly looked down, and was about to respond before jj spoke from behind her.

"agatha did some work huh?" He asked

"Yeah she did."

Alex walked back inside to change, and wanted to call kie, but there was no service.

"shit."

"come on fizzy, we're going fishing." jj yelled from the porch.

She sighed and packed her bag to go on the boat.

"Who first?" She asked walking down the dock.

"Pope, kie's probably shitting bricks cause you didn't go home." JB responsed

"then maybe you shouldn't of let her stay." jj mumbled.

"Well it seems you didn't mind that much because she woke up in your hoodie."

Alex's face went red, and jj's jaw clenched once again. He didn't know how to respond, so he just turned around.

The boys made comments to the other islanders, while alex stayed quiet in thought on the way to popes dock.

She didn't understand why he hated her, but was starting to get tired of it.

"well look who we have here." John said toward pope washing off the dock.

"We are declaring a pogue meeting, attendance mandatory" Alex yelled.

"I cant my pops got me on lockdown." He pouted

"oh come on pope." alex called

"Your dad's a pussy over" jj replied pretending to be talking into a radio.

"I heard that you little bastard." Hayward appeared behind his son.

Alex waves quickly to the man, she always loved hayward, and she was definitely his favorite out of popes friends.

"We need your son." john b spoke to pope's dad

"day after hurricane is a free day." jj chimed in.

"Ouuu yeah, we have security clearance." Alex added

"Get in the boat." John b mouthed toward pope

Pope frantically jumped in the boat apologizing to his dad and the boat drove away.

"Okay, she's gonna be pissed, so be prepared." Alex told the boys.

"Hey boys." Kiara called while walking down the dock. "Hey sister who doesn't know how to let me know if she's alive or not."

"Oh kie i love you, and i was with JB of course i was safe." Alex responsed.

"whatcha got, you got some juice boxes?" John b asked.

"you know, just some yogurt and carrot sticks." Kie laughed

"How about my kind of juice box?" jj smirked

She passed out the beers, alex shrugging her off, having brought her own drink.

"Alex what's in this?" Pope asked the girl, sniffing the water bottle

"Nothing." she mumbled trying to take it out of his grasp.

"Is this straight vodka?" Everyone paying attention now, popes face turned into a worried glare.

"It's just a boat day drink. it means nothing."

"Alex?" jj said, making her turn. He never called her that.

"Guys it's fine."

Kie and JB shared worried looks. She walked over to her sister and grabbed her arm.

"are you drinking again?" Kie whispered into Alex's ear

She swiftly walked past her "no." She turned "jj what the fuck!" She yelled watching the blonde poor the drink out into the water.

"oops." He laughed.

xxx

"hey you guys wanna see a party trick?" jj climbed to the front of the boat.

"Oh god i'm moving." John b quickly sat behind pope who was driving.

"go a little faster pope." jj commented

"Ou i wanna try." Alex walked toward jj

He looked at her with annoyance and sighed.

They both lifted the bottles to their mouths trying to catch the beer.

"Ew you're getting beer in my hair." Kie screamed, but was cut off, as the boat lunged forward, throwing JJ and alex off and into the water.

"what the hell pope?"

Alex hit the surface of the water with a cough.

"fizzy, you good?" jj asked beside her.

"Yeah i'm good."

Did he actually care? she thought.

"jj you okay?" pope called from the boat

"I'm think my heals touched the back of my head."

"Sand bar. the tide changed."

"Thank you captain obvious." alex swam toward the boat.

"Guys, i think there's a boat down there?"

Ok I’m gonna try and sculpt Donald Duck without looking at it and bake and paint the result

Robotic “Bees” Are About to Join Astronauts in Space

There are some things only humans can do in space. The rest can be left to robots. To free up valuable time for astronauts living and working aboard the International Space Station, we’re sending three robotic helpers to the orbiting outpost. Developed and built at our Ames Research Center in California’s Silicon Valley, the cube-shaped Astrobee robots will each stay as busy as a bee flying around the space station and assisting crew with routine tasks like maintenance and tracking inventory. The robots will also help researchers on the ground carry out experiments, test new technologies and study human-robot interaction in space. Learning how robots can best work with humans in close proximity will be key for exploring the Moon and other destinations. Get to know more about our new robots headed to space: 

The Astrobee robots were tested inside a special lab at our Ames Research Center where researchers created a mockup of the space station’s interior. 

The flying robots are propelled by fans. They can move in any direction and turn on any axis in space. 

Each robot is equipped with cameras and sensors for navigating inside the space station and avoiding obstacles.

Claw power! Astrobees have a robotic arm that can be attached for handling cargo or running experiments.

Astrobee is battery powered. When its battery runs low, the robot will autonomously navigate and dock to a power station to recharge.

The robots can operate in either fully automated mode or under remote control by astronauts or researchers on Earth.

Astrobee builds on the success of SPHERES, our first-generation robotic assistant that arrived at the space station in 2006.  

Two of the three Astrobee robots are scheduled to launch to space this month from our Wallops Flight Facility in Virginia! Tune in to the launch at www.nasa.gov/live.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

Good to see the younger generation represented at #IBF19 - they are the future fusion experts and operators. The European Fusion Education Network @FuseNet_eu introduced their work at an exhibition stand. @guido_lange #ITER #WeAreITER https://t.co/IBi6mJAipM

Three Ways to Travel at (Nearly) the Speed of Light

One hundred years ago, Einstein’s theory of general relativity was supported by the results of a solar eclipse experiment. Even before that, Einstein had developed the theory of special relativity — a way of understanding how light travels through space.

Particles of light — photons — travel through a vacuum at a constant pace of more than 670 million miles per hour.

All across space, from black holes to our near-Earth environment, particles are being accelerated to incredible speeds — some even reaching 99.9% the speed of light! By studying these super fast particles, we can learn more about our galactic neighborhood. 

Here are three ways particles can accelerate:

1) Electromagnetic Fields!

Electromagnetic fields are the same forces that keep magnets on your fridge! The two components — electric and magnetic fields — work together to whisk particles at super fast speeds throughout the universe. In the right conditions, electromagnetic fields can accelerate particles at near-light-speed.

We can harness electric fields to accelerate particles to similar speeds on Earth! Particle accelerators, like the Large Hadron Collider and Fermilab, use pulsed electromagnetic fields to smash together particles and produce collisions with immense amounts of energy. These experiments help scientists understand the Big Bang and how it shaped the universe!

2) Magnetic Explosions!

Magnetic fields are everywhere in space, encircling Earth and spanning the solar system. When these magnetic fields run into each other, they can become tangled. When the tension between the crossed lines becomes too great, the lines explosively snap and realign in a process known as magnetic reconnection. Scientists suspect this is one way that particles — for example, the solar wind, which is the constant stream of charged particles from the Sun — are sped up to super fast speeds.

When magnetic reconnection occurs on the side of Earth facing away from the Sun, the particles can be hurled into Earth’s upper atmosphere where they spark the auroras.

3) Wave-Particle Interactions!

Particles can be accelerated by interactions with electromagnetic waves, called wave-particle interactions. When electromagnetic waves collide, their fields can become compressed. Charged particles bounce back and forth between the waves, like a ball bouncing between two merging walls. These types of interactions are constantly occurring in near-Earth space and are responsible for damaging electronics on spacecraft and satellites in space.

Wave-particle interactions might also be responsible for accelerating some cosmic rays from outside our solar system. After a supernova explosion, a hot, dense shell of compressed gas called a blast wave is ejected away from the stellar core. Wave-particle interactions in these bubbles can launch high-energy cosmic rays at 99.6% the speed of light.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com. 

Una nueva capa sobre nuestro córtex y fuera de los límites del craneo.