Do you know what the structural backbone is of our new rocket, the Space Launch System? If you answered the core stage, give yourself a double thumbs up! Or better yet, have astronaut Scott Kelly do it!
We’re on a journey to Mars. For bolder missions to deep space, we need a big, powerful rocket like SLS to take astronauts in the Orion spacecraft to places we've never gone before. The core stage is a major part of that story, as it will house the fuel and avionics systems that will power and guide the rocket to those new destinations beyond Earth’s orbit. Here's how:
It's Big, and It's Fast.
The core stage will be the largest rocket stage ever built and is under construction right now at our Michoud Assembly Facility in New Orleans. It will stand at 212 feet tall and weigh more than 2.3 million pounds with propellant. That propellant is cryogenic liquid hydrogen and liquid oxygen that will feed the vehicle’s RS-25 engines. In just 8.5 minutes, the core stage will reach Mach 23, which is faster than 17,000 mph!
It's Smart.
Similar to a car, the rocket needs all the equipment necessary for the "drive" to deep space. The core stage will house the vehicle’s avionics, including flight computers, instrumentation, batteries, power handling, sensors and other electronics. That's a lot of brain power behind those orange-clad aluminum walls. *Fun fact: Orange is the color of the rocket's insulation.
It's a Five-Parter.
The core stage is made up of five parts. Starting from the bottom is the engine section, which will deliver the propellants to the four RS-25 engines. It also will house avionics to steer the engines, and be an attachment point for the two, five-segment solid rocket boosters. The engine section for the first SLS flight has completed welding and is in the final phases of manufacturing at Michoud.
Next up is the liquid hydrogen tank. It will hold 537,000 gallons of liquid hydrogen cooled to -423 degrees Fahrenheit. Right now, engineers are building the tank for the first SLS mission. It will look very similar to the qualification test article that just finished welding at Michoud. That's an impressive piece of rocket hardware!
The next part of the core stage is the intertank, which will join the propellant tanks. It has to be super strong because it is the attachment point for the boosters and absorbs most of the force when they fire 3.6 million pounds of thrust each. It's also a "think tank" of sorts, as it holds the SLS avionics and electronics. The intertank is even getting its own test structure at our Marshall Space Flight Center in Huntsville, Alabama.
And then there's the liquid oxygen tank. It will store 196,000 gallons of liquid oxygen cooled to -297 degrees. If you haven't done the math, that's 733,000 gallons of propellant for both tanks, which is enough to fill 63 large tanker trucks. Toot, toot. Beep, beep! A confidence version of the tank has finished welding at Michoud, and it's impressive. Just ask this guy.
The topper of the core stage is the forward skirt. Funny name, but serious hardware. It's home to the flight computers, cameras and avionics. The avionics system is being tested right now in a half-ring structure at the Marshall Center.
You can click here for more SLS core stage facts. We'll continue building, and see you at the launch pad for the first flight of SLS with Orion in 2018!
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Attention ghouls and goblins of the galaxy! The season for scares and frights is upon us, so we’ve rounded up a few Halloween resources to capture that festive feeling. Read on for craft ideas, free decoration downloads, a creepy soundtrack, and even costume ideas.
Overdid it at the pumpkin patch this year? Get some creative inspiration and some pumpkin-building tips from our Jet Propulsion Laboratory engineers, carve a James Webb Space Pumpkin, or paint a pumpkin with space and weather themed designs. And yes – you can make a NASA pumpkin, too.
Speaking of design, check out our terrifying Galaxy of Horrors posters: decorate your walls with a an illustration of a galactic graveyard or of dark energy prowling through the universe…
If costumes are more your thing, see how the astronauts aboard the International Space Station have dressed up over the years.
Finally, our Sinister Sounds of the Solar System playlist will give you just the right soundtrack for a haunted house or a party – or for scaring yourself all alone.
What extra-curricular activities do you suggest to make the most of our time in high school for a job in NASA?
There are so many great things to get into. I regret that I worked mostly in high school and didn’t spend more time in extracurricular activities. If I could go back, I would be more active in sports because that helps with learning about teamwork and keeps you fit. Lastly, I would get involved on an academic team to keep your brain fit.
On Monday, Oct. 17, Orbital ATK is scheduled to send new science experiments to the International Space Station.
The Cygnus spacecraft will blast off from our Wallops Flight Facility in Virginia at 7:40 p.m. EDT carrying more than 5,100 pounds of science, supplies and equipment.
Let’s take a look at a few of these experiments:
Low-temperature fires with no visible flames are known as cool flames. The Cool flames experiment examines these low-temperature combustion of droplets of a variety of fuels and additives in low gravity.
Why are we studying this? Data from this experiment could help scientists develop more efficient advanced engines and new fuels for use in space and on Earth.
Light plays a powerful role in our daily, or circadian, rhythms. Astronauts aboard the space station experience multiple cycles of light and dark every 24 hours, which, along with night shifts and the stresses of spaceflight, can affect their sleep quantity and quality.
The Lighting Effects investigation tests a new lighting system aboard the station designed to enhance crew health and keep their body clocks in proper sync with a more regular working and resting schedule.
Why are we studying this? Lighting manipulation has potential as a safe, non-pharmacological way to optimize sleep and circadian regulation on space missions. People on Earth, especially those who work night shifts, could also improve alertness and sleep by adjusting lighting for intensity and wavelength.
A user-friendly tablet app provides astronauts with a new and faster way to collect a wide variety of personal data. The EveryWear experiment tests use of this French-designed technology to record and transmit data on nutrition, sleep, exercise and medications. Astronauts use the app to complete questionnaires and keep medical and clinical logs. They wear a Smartshirt during exercise that records heart activity and body positions and transmits these data to the app. Finally, rather than manually recording everything that they eat, crew members scan barcodes on food packets to collect real-time nutritional data.
Why are we studying this? EveryWear has the potential for use in science experiments, biomedical support and technology demonstrations.
Outside the Earth’s magnetic field, astronauts are exposed to space radiation that can reduce immune response, increase cancer risk and interfere with electronics.
The Fast Neutron Spectrometer (FNS) experiment will help scientists understand high-energy neutrons, part of the radiation exposure experienced by crews during spaceflight, by studying a new technique to measure electrically neutral neutron particles.
Why are we studying this? This improved measurement will help protect crews on future exploration missions, like our journey to Mars.
Ahead of launch, there will be various opportunities to learn more about the mission:
What’s on Board Science Briefing Saturday, Oct. 15 at 4 p.m. EDT Scientists and researchers will discuss some of the experiments being delivered to the station. Watch HERE.
Prelaunch News Briefing Saturday, Oct. 15 at 6 p.m. EDT Mission managers will provide an overview and status of launch operations. Watch HERE.
LAUNCH!!! Monday, Oct. 17 coverage begins at 6:45 p.m. EDT Watch live coverage and liftoff! Launch is scheduled for 7:40 p.m. EDT. Watch HERE.
Facebook Live Starting at 7:25 p.m. EDT you can stream live coverage of the launch on NASA’s Facebook page. Watch HERE.
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NOAA’s GOES-R weather satellite will soon be launched into space – becoming our nation’s most advanced geostationary satellite to date. So what does that mean for you? Here are six reasons to be excited about GOES-R:
Perhaps you turn on the TV or radio, or check your favorite weather website or smartphone weather app to get the latest forecast. No matter the platform of your weather forecast, the data and information for those forecasts come from NOAA’s National Weather Service (NWS).
Weather satellites, like the GOES satellites, are the backbone of NWS forecasts. GOES-R will be more advanced than any other weather satellite of its kind and could make the answer to the question “What’s the weather going to be?” more detailed and accurate both in the near term and further out into the future.
Do you live in an inland state, a state with a coastline or a state with a mountain range? Great, that’s all of you! Data from the GOES-R satellite will be a game changer for forecasters in your area.
Here’s why: satellites are fitted with instruments that observe weather and collect measurements. The primary instrument on the new GOES-R satellite will collect three times more data and provide four times better resolution and more than five times faster coverage than current satellites! This means the satellite can scan Earth’s Western Hemisphere every five minutes and as often as every 30 seconds in areas where severe weather forms, as compared to approximately every 30 minutes with the current GOES satellites. Pretty cool, right?
This expedited data means that forecasts will be timelier, with more “real-time” information in them, allowing NWS to make those warnings and alerts that much faster, thereby potentially saving lives.
And a faster forecast is a big deal for our economy. Commercial shipping and aviation are just two examples of industries that rely on up-to-date weather data for critical decisions about how to route ships and safely divert planes around storms.
We all depend on a power grid for virtually every aspect of modern life. But power grids are vulnerable to bursts of energy from the sun that can affect us on Earth.
Luckily, GOES-R will be sitting over 22,000 miles above us, and in addition to measuring weather on Earth, it will monitor incoming space weather.
How different will GOES-R be? Imagine going from your classic black and white TV to a new high definition one. It will enable NOAA to gather data using three times more channels, four times the resolution, five times faster than the current GOES satellites.
This faster, more accurate data means better observations of developing storms and other severe weather.
6. GOES-R will be a continuing a legacy
GOES-R may be the first of its kind, but it is the heir to a rich tradition of geostationary earth observation.
In fact, NOAA has continuously operated a GOES satellite for over 40 years. Since 1975, GOES satellites have taken well over 3 million images!
The GOES-R satellite is scheduled to launch Saturday, Nov. 19 at 5:42 p.m. EST aboard a United Launch Alliance Atlas V rocket. Liftoff will occur from our Kennedy Space Center in Florida.
Learn more about the mission: https://www.nesdis.noaa.gov/GOES-R-Mission
Article Credit: NOAA
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Happy #MoonDay! To celebrate the 49th anniversary of Apollo 11 landing on the Moon, we present you with “Moonlight,” a video by our Goddard science visualizer Ernie Wright set to Debussy’s Clair de Lune. The Apollo missions were a landmark in lunar exploration. The visit and the samples that our Moon walkers collected transformed our understanding of the Moon and the solar system. Now, our Lunar Reconnaissance Orbiter’s high-resolution data gives an incredibly detailed view of our closest neighbor.
This visualization captures the mood of Claude Debussy's best-known composition, Clair de Lune (which means moonlight in French). The piece was published in 1905 as the third of four movements in the composer's Suite Bergamasque, and unlike the other parts of this work, Clair is quiet, contemplative, and slightly melancholy, evoking the feeling of a solitary walk through a moonlit garden.
“Moonlight” uses a digital 3D model of the Moon built from Lunar Reconnaissance Orbiter global elevation maps and image mosaics. The lighting is derived from actual Sun angles during lunar days in 2018. Enjoy and read more HERE.
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The International Space Station is an important and special place that is built on international cooperation and partnership. The station is a convergence of science, technology and human innovation that benefits and advances our global community here on Earth.
While the space station is an important aspect of our low-Earth orbit exploration, it is also the key to our next giant leap to deep space and our Journey to Mars. For example, our recent VEGGIE experiment aboard the space station is a critical aspect of long-duration exploration missions farther into the solar system. Food grown in space will be a resource for crew members that can provide them will essential vitamins and nutrients that will help enable deep space pioneering.
Another important experiment underway is the Twins Study that involves twin astronauts Scott and Mark Kelly. These investigations will provide insight into the subtle effects and changes that may occur in spaceflight as compared to Earth by studying two individuals who have the same genetics, but are in different environments for one year. You can follow Scott Kelly as he spends a year in space.
The space station is the second brightest object in the sky (after the moon, of course), and you don’t even need a telescope to see it! We can even tell you exactly when and where to look up to Spot the Station in your area!
So, as you look to spot the station in the sky, remember that even though it may look small from Earth, the crew onboard (and at home) are making contributions to international partnerships and global research.
Friday, Oct. 20, NASA astronauts Randy Bresnik and Joe Acaba ventured outside the International Space Station for a 6 hour and 49 minute spacewalk. Just like you make improvements to your home on Earth, astronauts living in space periodically go outside the space station to make updates on their orbiting home.
All spacewalks begin inside the space station. Astronauts Paolo Nespoli and Mark Vande Hei helped each spacewalker put on their suit, known as an Extravehicular Mobility Unit (EMU).
They then enter an airlock and regulate the pressure so that they can enter the vacuum of space safely. If they did not regulate the pressure safely, the astronauts could experience something referred to as “the bends” – similar to scuba divers.
Once the two astronauts exited the airlock and were outside the space station, they went to their respective work stations.
Bresnik replaced a failed fuse on the end of the Dextre robotic arm extension, which helps capture visiting vehicles.
During that time, Acaba set up a portable foot restraint to help him get in the right position to install a new camera.
While he was getting set up, he realized that there was unexpected wearing on one of his safety tethers. Astronauts have multiple safety mechanisms for spacewalking, including a “jet pack” on their spacesuit. That way, in the unlikely instance they become untethered from the station, the are able to propel back to safety.
Bresnik was a great teammate and brought Acaba a spare safety tether to use.
Once Acaba secured himself in the foot restraint that was attached to the end of the station’s robotic arm, he was maneuvered into place to install a new HD camera. Who was moving the arm? Astronauts inside the station were carefully moving it into place!
And, ta da! Below you can see one of the first views from the new enhanced HD camera…(sorry, not a GIF).
After Acaba installed the new HD camera, he repaired the camera system on the end of the robotic arm’s hand. This ensures that the hand can see the vehicles that it’s capturing.
Bresnik, completed all of his planned tasks and moved on to a few “get ahead” tasks. He first started removing extra thermal insulation straps around some spare pumps. This will allow easier access to these spare parts if and when they’re needed in the future.
He then worked to install a new handle on the outside of space station. That’s a space drill in the above GIF.
After Acaba finished working on the robotic arm’s camera, he began greasing bearings on the new latching end effector (the arm’s “hand”), which was just installed on Oct. 5.
The duo completed all planned spacewalk tasks, cleaned up their work stations and headed back to the station’s airlock.
Once safely inside the airlock and pressure was restored to the proper levels, the duo was greeted by the crew onboard.
They took images of their spacesuits to document any possible tears, rips or stains, and took them off.
Coverage ended at 2:36 p.m. EDT after 6 hours and 49 minutes. We hope the pair was able to grab some dinner and take a break!
You can watch the entire spacewalk HERE, or follow @Space_Station on Twitter and Instagram for regular updates on the orbiting laboratory.
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Black holes are hard to find. Like, really hard to find. They are objects with such strong gravity that light can’t escape them, so we have to rely on clues from their surroundings to find them.
When a star weighing more than 20 times the Sun runs out of fuel, it collapses into a black hole. Scientists estimate that there are tens of millions of these black holes dotted around the Milky Way, but so far we’ve only identified a few dozen. Most of those are found with a star, each circling around the other. Another name for this kind of pair is a binary system.That’s because under the right circumstances material from the star can interact with the black hole, revealing its presence.
The visualization above shows several of these binary systems found in our Milky Way and its neighboring galaxy. with their relative sizes and orbits to scale. The video even shows each system tilted the way we see it here from our vantage point on Earth. Of course, as our scientists gather more data about these black holes, our understanding of them may change.
If the star and black hole orbit close enough, the black hole can pull material off of its stellar companion! As the material swirls toward the black hole, it forms a flat ring called an accretion disk. The disk gets very hot and can flare, causing bright bursts of light.
V404 Cygni, depicted above, is a binary system where a star slightly smaller than the Sun orbits a black hole 10 times its mass in just 6.5 days. The black hole distorts the shape of the star and pulls material from its surface. In 2015, V404 Cygni came out of a 25-year slumber, erupting in X-rays that were initially detected by our Swift satellite. In fact, V404 Cygni erupts every couple of decades, perhaps driven by a build-up of material in the outer parts of the accretion disk that eventually rush in.
In other cases, the black hole’s companion is a giant star with a strong stellar wind. This is like our Sun’s solar wind, but even more powerful. As material rushes out from the companion star, some of it is captured by the black hole’s gravity, forming an accretion disk.
A famous example of a black hole powered by the wind of its companion is Cygnus X-1. In fact, it was the first object to be widely accepted as a black hole! Recent observations estimate that the black hole’s mass could be as much as 20 times that of our Sun. And its stellar companion is no slouch, either. It weighs in at about 40 times the Sun.
We know our galaxy is peppered with black holes of many sizes with an array of stellar partners, but we've only found a small fraction of them so far. Scientists will keep studying the skies to add to our black hole menagerie.
Curious to learn more about black holes? Follow NASA Universe on Twitter and Facebook to keep up with the latest from our scientists and telescopes.
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At 11:03 p.m. EST on Sunday, Feb. 9, Solar Orbiter, an international collaboration between the European Space Agency and NASA, launched aboard United Launch Alliance’s #AtlasV rocket for its journey to our closest star. The spacecraft will help us understand how the Sun creates and controls the constantly changing space environment throughout the solar system. The more we understand about the Sun’s influence on the planets in our solar system and the space we travel through, the more we can protect our astronauts and spacecraft as we journey to the Moon, to Mars and beyond. More here.
Image Credit: NASA Social participant, Jared Frankle
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Our two long-running missions, Cassini and the Hubble Space Telescope, are providing new details about “ocean worlds,” specifically the moons of Jupiter and Saturn.
The details – discussed during our April 13 science briefing – included the announcement by the Cassini mission team that a key ingredient for life has been found in the ocean on Saturn's moon Enceladus.
Meanwhile, in 2016 Hubble spotted a likely plume erupting from Jupiter’s moon Europa at the same location as one in 2014, reenforcing the notion of liquid water erupting from the moon.
These observations are laying the groundwork for our Europa Clipper mission, planned for launch in the 2020s.
Shane Kimbrough and his Russian colleagues returned home safely after spending 173 days in space during his mission to the International Space Station.
Meanwhile, astronaut Peggy Whitson assumed command of the orbital platform and she and her crew await the next occupants of the station, which is slated to launch April 20.
We’ve announced the preliminary winner of the 2017 Student Launch Initiative that took place near our Marshall Space Fight Center, The final selection will be announced in May. The students showcased advanced aerospace and engineering skills by launching their respective model rockets to an altitude of one mile, deploying an automated parachute and safely landing them for re-use.
On April 11, a ground-breaking ceremony took place at our Langley Research Center for the new Systems Measurement Laboratory. The 175,000 square-foot facility will be a world class lab for the research and development of new measurement concepts, technologies and systems that will enable the to meet its missions in space explorations, science and aeronautics.
Space fans celebrated Yuri’s Night on April 12 at the Air and Space Museum and around the world. On April 12, 1961, cosmonaut Yuri Gagrin became the first person to orbit the Earth.
On April 12, 1981, John Young and Bob Crippin launched aboard Space Shuttle Columbia on STS-1 a two-day mission, the first of the Shuttle Program’s 30-year history.
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