Exploration - Blog Posts

It truly is the most beautiful planet in this solar system

Jupiter is like an oil painting via /r/spaceporn. Picture posted by /u/jaketocake.

Even when you have the capability of exploring the stars sometimes it's nice to stare at them from a planetary surface

by mr.rolzay

Thank you for following me! I also like space, which is pretty cool and neat! What is your favorite thing about space?

This is a hard question to answer because golly Geez I love so much about space. If I had to choose one thing about space I would have to say the diversity in what you can find. Each planet is so large it would take a lifetime to completely see everything there is to discover, and that's just on one planet, and there is an incomprehensible number of planets in just the galaxy, not to mention the moons, and don't even get me started on how interesting each and every asteroid can be. It is truly awe inspiring.

The wonders of Mars

1,000 Days in Orbit: MAVEN’s Top 10 Discoveries at Mars

On June 17, our MAVEN (Mars Atmosphere and Volatile Evolution Mission) will celebrate 1,000 Earth days in orbit around the Red Planet.

Since its launch in November 2013 and its orbit insertion in September 2014, MAVEN has been exploring the upper atmosphere of Mars. MAVEN is bringing insight to how the sun stripped Mars of most of its atmosphere, turning a planet once possibly habitable to microbial life into a barren desert world.

Here’s a countdown of the top 10 discoveries from the mission so far:

10. Unprecedented Ultraviolet View of Mars

Revealing dynamic, previously invisible behavior, MAVEN was able to show the ultraviolet glow from the Martian atmosphere in unprecedented detail. Nightside images showed ultraviolet “nightglow” emission from nitric oxide. Nightglow is a common planetary phenomenon in which the sky faintly glows even in the complete absence of eternal light.

9. Key Features on the Loss of Atmosphere

Some particles from the solar wind are able to penetrate unexpectedly deep into the upper atmosphere, rather than being diverted around the planet by the Martian ionosphere. This penetration is allowed by chemical reactions in the ionosphere that turn the charged particles of the solar wind into neutral atoms that are then able to penetrate deeply.

8. Metal Ions

MAVEN made the first direct observations of a layer of metal ions in the Martian ionosphere, resulting from incoming interplanetary dust hitting the atmosphere. This layer is always present, but was enhanced dramatically by the close passage to Mars of Comet Siding Spring in October 2014.

7. Two New Types of Aurora

MAVEN has identified two new types of aurora, termed “diffuse” and “proton” aurora. Unlike how we think of most aurorae on Earth, these aurorae are unrelated to either a global or local magnetic field.

6. Cause of the Aurorae

These aurorae are caused by an influx of particles from the sun ejected by different types of solar storms. When particles from these storms hit the Martian atmosphere, they can also increase the rate of loss of gas to space, by a factor of ten or more.

5. Complex Interactions with Solar Wind

The interactions between the solar wind and the planet are unexpectedly complex. This results due to the lack of an intrinsic Martian magnetic field and the occurrence of small regions of magnetized crust that can affect the incoming solar wind on local and regional scales. The magnetosphere that results from the interactions varies on short timescales and is remarkably “lumpy” as a result.

4. Seasonal Hydrogen

After investigating the upper atmosphere of the Red Planet for a full Martian year, MAVEN determined that the escaping water does not always go gently into space. The spacecraft observed the full seasonal variation of hydrogen in the upper atmosphere, confirming that it varies by a factor of 10 throughout the year. The escape rate peaked when Mars was at its closest point to the sun and dropped off when the planet was farthest from the sun.

3. Gas Lost to Space

MAVEN has used measurements of the isotopes in the upper atmosphere (atoms of the same composition but having different mass) to determine how much gas has been lost through time. These measurements suggest that 2/3 or more of the gas has been lost to space.

2. Speed of Solar Wind Stripping Martian Atmosphere

MAVEN has measured the rate at which the sun and the solar wind are stripping gas from the top of the atmosphere to space today, along with details of the removal process. Extrapolation of the loss rates into the ancient past – when the solar ultraviolet light and the solar wind were more intense – indicates that large amounts of gas have been lost to space through time.

1. Martian Atmosphere Lost to Space

The Mars atmosphere has been stripped away by the sun and the solar wind over time, changing the climate from a warmer and wetter environment early in history to the cold, dry climate that we see today.

Maven will continue its observations and is now observing a second Martian year, looking at the ways that the seasonal cycles and the solar cycle affect the system.

For more information about MAVEN, visit: www.nasa.gov/maven

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

The Universe is under no obligation to make sense to you

Neil deGrasse Tyson

Solar System: Things to Know This Week

Our solar system is huge, let us break it down for you. Here are a few things to know this week:

1. The View from the Far Shore

The rugged shores of Pluto’s highlands come into sharp view in a newly released image from our New Horizons spacecraft. This latest view zooms in on the southeastern portion of Pluto’s great ice plains, where they border dark highlands formerly named Krun Macula.

2. Dawn’s Latest Light

Our Dawn mission has now completed more than 1,000 orbital revolutions since entering into Ceres’ gravitational grip in March 2015. The probe is healthy and performing its ambitious assignments impeccably. See what it has revealed lately HERE.

3. Counting Down

Our OSIRIS-REx mission to the asteroid Bennu is now entering the final preparations for its planned launch in September. In a new interview, the mission’s principal investigator reports on the final pre-flight tests happening at our Kennedy Space Center in Florida.

4. Deep Dive

Three successful engine maneuvers to bring the lowest part of the spacecraft’s orbit down to just 74 miles (119 km) above the surface of Mars, the MAVEN mission’s fifth deep dip campaign has begun. MAVEN is studying the planet’s atmosphere up close.

5. Storm Season

Meanwhile, other robotic Mars orbiters have revealed that a pattern of three large regional dust storms occurs with similar timing most Martian years. The seasonal pattern was detected from dust storms’ effects on atmospheric temperatures, which spacecraft have been monitoring since 1997.

Want to learn more? Read our full list of the 10 things to know this week about the solar system HERE.

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

THATS IT

What’s Up for October 2016?

What’s Up for October? Moon phases, Astronomy Day, meteors and Saturn!

The new moon phase starts the month on October 1. Of course, the new moon isn’t visible, because it’s between Earth and the sun, and the unlit side is facing Earth. 

Night by night the slender crescent gets bigger and higher in the sky and easier to see just after sunset. On the 3rd and 4th, the moon will pass just above Venus!

A week later on the 9th the moon has traveled through one quarter of its 29-day orbit around Earth, and we see the first quarter phase. Also look for Mars just below the moon.

Join us in celebrating International Observe the Moon Night Saturday, October 8th, with your local astronomy club or science center. Conveniently, the 8th is also Fall Astronomy Day, celebrated internationally by astronomy clubs since 1973.

One week later on the 16th the moon reaches opposition, or the full moon phase, when the moon and the sun are on opposite sides of Earth. And the sun completely illuminates the moon as seen from Earth. 

During this phase, the moon rises in the east just as the sun is setting in the west. Overnight, the moon crosses the sky and sets at dawn.

A week later, on the 22nd of October, the last quarter moon rises at midnight. Later, the pretty and bright Beehive Cluster will be visible near the moon until dawn.

To wrap up the month, 29 days after the last new moon we start the lunar cycle all over again with another new moon phase on October 30th. Will you be able to spot the one-day old moon on Halloween? It will be a challenge!

There are three meteor showers in October–the Draconids, the Taurids and the Orionids. Try for the Draconids on October 8th.  

See the Taurids on October 10th. 

The Orionids will be marred by the full moon on the 21st, but all three meteor showers will offer some possible bright meteors.

Finally, you’ll have an especially pretty view of Saturn, when it forms a straight line with Venus and the red star Antares on the 27th.

You can catch up on NASA’s lunar mission, the Lunar Reconnaissance Orbiter, the Cassini Mission to Saturn and all of our missions at www.nasa.gov.

Watch the full October “What’s Up" video for more:

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

I wonder if you know

I wonder if you know which song is about you, which letter is written for you, which smile comes from you, which gift under the millions were from me.

Wait no— you don’t actually pay attention. Because last time I asked how you liked the gift I sent you, you forgot it was from me. So, I stopped asking.

So, I stopped texting, stopped calling. and there was silence without your laughter. Laughs that weren't meant for me.

True that

Big Day In Space: NASA Co-Op #3 Week 12

Spacewalk

An International Space Station spacewalk with a runaway micrometeorite shield and SpaceX landing of a rocket which has already flown in space marks a busy week in space exploration.

American NASA astronaut Peggy Whitson conducted her eight spacewalk March 30th, 2017. Logging an accumulative 59 spacewalk hours, Peggy has surpassed the current record of female spacewalk hours. Peggy is now the third most experience spacewalker behind Anatoly Solovyev (68 hours) and former astronaut Mike Lopez-Alegria (67 hours). Accompanying Peggy on the spacewalk was current Space Station commander Shane Kimbrough.

The goals of the spacewalk included reconnecting cables and electrical connections to PMA3 on the Harmony node. Peggy and Shane also installed an upgraded computer relay box on Space Station's truss and installed shields to PMA3 and common berthing mechanism.

During the spacewalk, one of the shields was inadvertently lost. Fortunately, the shield floated away safely and does not pose a threat to Space Station nor the crew. However, the device missing a shield still needed to be protected. Mission Control engineers jumped into action with an Apollo 13-esque energy to solve how to replace the cover. They devised a plan for the astronauts to finish covering the port with the PMA-3 cover Whitson removed earlier in the day.

Leading this effort from the ground included  light Director Emily Nelson and Capsule Communicator (CAPCOM)/Astronaut Anne McClain. Below you can see circled in green CAPCOM McClain & circled in purple Flight Director Nelson. 

SpaceX Reusable Rocket

Falcon 9 rocket will delivered a commercial communications satellite to a Geostationary Transfer Orbit (GTO). SpaceX is on the road to full and rapid reusability as the world’s first reflight of an orbital class rocket, whereas NASA's Shuttle was a human transport between Earth and Space Station.  Falcon 9’s first stage was previously supported a mission in April of 2016.

Rewatch the launch and landing broadcast here.

WAYS TO GET INVOLVED

Science Friday featured NASA Robotics and exploring the galaxy

Apply to be a NASA Intern

Accomplishments this week at NASA

NASA panelists at a Women History Month event

Launch your Aerospace Career

More pictures from the spacewalk...

NASA Co-Op Week 10: Rocket Science Is Hard

I get frustrated with NASA asking “Why don’t we just build a rocket and go?”, looking and sounding like a doofus in a horse head. NASA Johnson and Kennedy interns met up at Cape Canaveral to watch the Atlas V launch. Visiting Kennedy Space Center reminded me about how much goes into a rocket launch, sending humans or satellites into space. Of course budget and the ability to set and maintain ten year plus political space exploration goals would speed up the process. Those variables aside I want to share what goes into a rocket launch.

Fishing For Rockets Surprisingly NASA does indeed reuse rocket parts, I thought this idea was unique to SpaceX but has been in the works for decades. Following shuttle era launches skirts of rockets and other parts were retrieved from the ocean. They would be inspected, refurbished and reused. Shuttle rocket parts will be used on the new Space Launch System (SLS). Signs labeled parts that will be used for the EM-1 Orion launch. Protective materials preventing heat damage often get reapplied to these parts. Parts of the rocket get so hot it reaches 6000 degrees Fahrenheit while others get so cold ice forms. The technology used to mix these epoxies in mid air is the same technology that coats M&Ms and Doritos. Talk about spin off technologies!

Monster Tank So you made rocket parts. Great, but how do you expect to assemble and transport something so huge? This was a problem my robotics team ran into as well. We had to make sure the robot we built would fit through the door. Once you have all the rocket parts they will be assembled in the Vehicle Assembly Building (VAB), the tallest one story building in the world at 526 feet. It takes 45 minutes for the main door to be opened. Clouds have been known to form inside the VAB and rain has fallen too. Despite how big the VAB may be when transporting one of the rockets into an assembly segment it needed to be tilted at a 45 degree angle. Upgrades are currently being made for the massive SLS. Once the rocket is assembled it is transported on the Crawler-transporter moving at a back breaking speed of one mile per hour. This transporter insures the rocket reaches the launch pad safely limiting the movement of rocket to less than a diameter of a basketball.

Blast Off Wave goodbye to your creation because it will soon launch, release its payload, tumble into the sea repeating the cycle. A successful launch is dependent of many variables including launch pad hardware, windspeed, humidity, weather, and simply fishing boats in the line of debris reentry. If launch is a go bolts the size of your lower leg explode freeing the beast from the ground. If the bolts do not successfully release the rocket don’t care, it will continue to lift off and tear its restraints off like King Kong.

WAYS TO GET INVOLVED Consider touring Kennedy Space Center. While Johnson Space is the home of the human aspect of space flight Kennedy is in charge of getting is up there: https://www.kennedyspacecenter.com/

Write your congress members and senators encouraging them to support space exploration: http://www.house.gov/representatives/find/

Discover accomplishments made this week at NASA: http://youtu.be/_a9og3pAqxY

Watch highlights from the latest launch by United Launch Alliance of AtlasV carrying a GPS into orbit: https://www.youtube.com/embed/NPcRziWDigQ

NASA Co-Op Week 7: Astronaut, Rovers & Robots

One wheel off the edge of a cliff ten of us were jam packed in a rover sweating like dogs.

Robonaut, Valkyrie, Modular Robotic Vehicle and Small Pressurized Rover are the electrical explorers we visited during a Johnson Space Center robotics tour. Waiting in NASA's Rock Yard was a speedy electric vehicle and a crater climbing rover. MRV is an electric drive vehicle that is has high maneuverability that would score big in drifting competitions. We all got to ride in the Small Pressurized Rover which wasn't really small at all. This giant monster truck looking rover took us in and out of  lunar like creators and up a steep Mars like hill. The operator drove us to the edge of the hill and asked, "All right, are you ready to go down?" Grasping to our seats we were all white knuckled. Backing up the rover the operator laughed, "Going down that hill would have wrecked the vehicle". For those few seconds the inside of the rover became even more sauna like. In The Martian movie you will see a modified version of the Small Pressurized Rover that Mark Watney drives around.

Robotnaut is the humanoid robot you see on the news all the time that works in the International Space Station (ISS). Flexing muscles and articulating fingers Robotnaut showed off for us. Robotnaut is very strong able to lift over 20lb of weight in manners that would make arm day miserable. However, Robotnaut is also very delicate able to sense the wight of a nickle on its fingertips.

Valkyrie is a full bodied humanoid robot designed to perform human tasks in conditions unsafe for humans. The idea for Valkyrie came after the Fukushima Accident where more damage could have been avoided if valves were closed near the site, a task a robot could do. Valkyrie is also being designed for low gravity exploration like Mars or Lunar exploration.

Astronaut Michael Fossum talked us student this week too. He flew two Shuttle Missions and a six month long mission to the International Space Station. Before he was in space Fossum engineered ways to repair the shuttle during space walks to prevent any pieces from breaking off. During the space walk  Fossum navigated over to the tiles on the space station and sealed spaces and breaks with cocking substance. He mentioned when you look "down" in various directions during a spacewalk you can either see the surface of Earth or a black nothingness.  Fossum also was the first to capture a time-lapse of Northern Light and the first astronaut to operate Robotnaut on the ISS.

HOW TO GET INVOLVED

Read about the Small Pressurized Rover and its future missions

Learn about Valkyrie's future endeavors

Watch Astronaut Mike Fossum operate Robotnaut

Robotnaut's younger sibling Robotnaut2 operating switches on the ISS

Human like hand motions by Robonaut2

Start your career with NASA and tune into a Virtual Career Fair and hear about internship, fellowships and scholarships October 8th 12pm-3:30pmCT

This is a very deep and poetic view of humans by the intuitive and genius mind of Carl Sagan. His breath marked of a great time for science.

_ aux horizons de 2019

// pour une année prometteuse et surtout un immense merci pour votre soutien dans cette aventure! _