$4.5 billion


Every room resets. Remember I told you that? Every room reverts to its original condition. Logically, the teleporter should do the same. Teleporter. Fancy word. Just like 3D printers, really, except they break down living matter and information, and transmit it. All you have to do is add energy. The room has reset, returned to its original condition when I arrived. That means there’s a copy of me still in the hard drive. Me, exactly as I was, when I first got here, seven thousand years ago. All I have to find is some energy. And all you need for energy is something to burn.

How long can I keep doing this, Clara? Burning the old me, to make a new one?

Heaven Sent, my favourite Capaldi Era episode as requested by @lullapiee​.


Things end. That’s all. Everything ends, and it’s always sad. But everything begins again too, and that’s always happy. Be happy. I’ll look after everything else.

Thank you, Peter Capaldi, for being our 12th Doctor.

A Time Lord who started out not knowing if he was a good man or a bad man, only to realise he was neither, but rather an idiot with a box and a screwdriver who’s just passing through and helping out and learning, who knew that love is a promise. A Time Lord who chose to save a little boy who’d grow up to be his enemy, simply because there should always be mercy. Who spent 4.5 billion years punching a wall because he had a duty of care, and who was willing to break all of his own rules and risk all of time and space for fear of losing his best friend, and then realised that he went too far and payed the price for it himself. A Time Lord who tried very hard never to be cruel or cowardly. Who didn’t do what he did because he was trying to win or because it was easy, but because it was right and - above all - kind, just kind. Who did the things he did without hope, without witness, without reward. A Time Lord who wouldn’t die of anything else but kindness, because he wasn’t a doctor, he was the Doctor.

I hope there’ll be stars.

Taking the Vital Signs of Mars

Does Mars have quakes? What is the temperature of the Red Planet? How did Mars even form? What can it tell us about how other rocky planets formed?

The Mars InSight lander is scheduled to launch in May 2018 to search for the answers to those questions.

InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) will conduct the first thorough “check-up” of Mars in more than 4.5 billion years, measuring its “pulse”, or seismic activity; its temperature; and its “reflexes” (the way the planet wobbles when it is pulled by the Sun and its moons).

How and Why?

By using sophisticated instruments – tools that can measure the vital signs of a planet – InSight will delve deep beneath the surface of Mars, detecting the clues left by the earliest stages of planetary formation.  

Previous Mars missions have explored the surface history of the Red Planet. Mars has been less geologically active than Earth, so it retains a more complete record of its history in its core, mantle and crust. InSight will study the sizes, densities and overall structure of the Red Planet’s core, mantle and crust. 

The lander will also measure the rate at which heat escapes from the planet’s interior, and provide glimpses into the evolutionary processes of all the rocky planets in our solar system, including Earth, and even those circling other stars!

Send Your Name to Mars!

You can send your name to Mars onboard the InSight lander! The deadline to get your Martian boarding pass is Nov. 1. To submit your name, visit: mars.nasa.gov/syn/insight

Learn more about Mars InSight HERE.

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

Whouffaldi’s (Twelve/Clara) romantic relationship is solid canon ... and confirmed by Moffat, Capaldi, and Coleman

I received an anonymous message asking me why I ship them so much because “he only thought of her as a friend – Clara doesn’t mean anything.”  I deleted it, but then I thought, Wait, I know that I’m right.  Whouffaldi fans know what we’ve seen onscreen, have multiple moments that confirm it.  So I did some digging.  And I found some interesting things online …:

* “Ultimately it has been confirmed by both Capaldi and Coleman that the Doctor and Clara’s relationship is romantic in nature … ”

* “Steven Moffat has teased that Capaldi’s Doctor may perhaps be more in love with Clara than he’d like to believe.”

* “ According to Coleman regarding Clara’s bond with The Doctor inquiring if she had feelings for him she stated ‘She’s totally in love with him ….’”

True love … DW style.  If Twelve could pick one person to see before he regenerates, it would be Clara.

Originally posted by dreameater1988

Originally posted by dreameater1988

I still ship them … and ship them proudly.  I won’t be dissuaded.  I ship them hardcore.

Happy Asteroid Day, and happy Meteor Watch Day! Thousands of years ago, the world-famous Willamette meteorite, traveling some 64,000 kilometers per hour, crashed into Earth’s surface.

Billions of years before that, an early planet orbiting the Sun was shattered, perhaps in a collision with another protoplanet. While planets including Earth gradually formed and matured, the fragment orbited the Sun. Eventually, it landed in Oregon just outside of what is today the city of Portland. Over many centuries, rainwater interacting with its iron sulfide deposits produced sulfuric acid, which slowly etched and carved large cavities.

The Willamette is made of iron and weighs 15.5 tons.  It is the largest ever found in the United States and the sixth-largest in the world. Only about 600 of the 25,000 meteorites found on Earth are made of iron. The material was created deep inside stars, which produce energy by fusing lighter elements into heavier ones - for example, hydrogen into helium. The force of nuclear fusion eventually shatters stars much more massive than our Sun, casting fused elements, such as iron, into interstellar space. Over eons, these elements collect inside clouds of gas and dust. 

Within such an iron-rich interstellar cloud, our Sun formed 4.5 billion years ago, giving rise to comets, asteroids, planets and all life on Earth. So when we study the Willamette meteorite, we are also studying the chemical record of our origins and our place in the universe.

  • Person A: *crying*
  • Person B: There's no reason to be sad.
  • Person A: Why?
  • Person B: Well, first of all, the world is 4.5 billion years old--
  • Person A (interrupting): I don't know how that's supposed to make me feel better.
  • Person B: Let me finish
  • Person B: The world is 4.5 billion years old and you still happened to exist at the same time as me.
  • Person A: ...
  • Person B: ...
  • Person A: Why won't you leave me alone
Our Asteroid-Bound Mission is Set to Slingshot Around Earth

NASA’s first spacecraft to travel to an asteroid will get a boost from Earth tomorrow, Sept. 22. 

Earth’s gravity is going to slingshot OSIRIS-REx toward its target, an asteroid named Bennu.

Asteroids are relatively small, inactive, rocky bodies that orbit around the Sun. Scientists think asteroids like Bennu may have collided with Earth a long time ago, seeding our planet with the organic compounds that made life possible. That means that there’s a good chance Bennu contains answers to fundamental questions about the origins of life and how our solar system came to be. We sent OSIRIS-REx on a journey to investigate.

One of the best ways to change the trajectory of a spacecraft is by using the gravity of a planet or large moon to catapult it. It sounds like science fiction, but this type of maneuver, called a gravity assist, is a fuel-efficient way of traveling through space.

We’re not using the slingshot to speed the spacecraft, we’re doing it to change its direction. That’s because the asteroid’s orbit is tilted six degrees in comparison to Earth’s orbit. When OSIRIS-REx swings by, Earth’s gravity will lift it up and sling it toward Bennu.

Spot the spacecraft

Because at its closest approach OSIRIS-REx will only be 11,000 miles above Earth, you can see it with a backyard telescope. For most observers, the spacecraft will appear between the constellations Cetus and Pisces, but its exact position in the sky will vary by location.

For specifics on locating and photographing OSIRIS-REx, visit our Spot the Spacecraft page.

Wave to OSIRIS-REx

After its closest approach, OSIRIS-REx flip around and look back at Earth, so here’s your chance to say hello! Take a picture of yourself or your group waving to OSIRIS-REx. Then share your photo using the hashtag #HelloOSIRISREx and tag the mission account on Twitter @OSIRISREx or Instagram @OSIRIS_REx.

To Bennu and back

In about a year from now, OSIRIS-REx will arrive at asteroid Bennu.

After it surveys and maps Bennu, OSIRIS-REx will “high-five” the asteroid with its robotic arm to collect a sample, which it will send to Earth. This asteroid sample will be the largest amount of space material transported to Earth since we brought back rocks from the Moon. High-fives all around!

If everything goes according to plan, on Sept. 24, 2023, the capsule containing the asteroid sample will make a soft landing in the Utah desert. That’s the end of the spacecraft’s seven-year-long journey to Bennu and back.

But the mission doesn’t stop there. On Earth, the sample material collected by OSIRIS-REx will be analyzed to determine the asteroid’s chemical composition. Scientists will look for organic compounds like amino acids and sugars — the building blocks for life. 

Bennu is approximately 4.5 billion years old. Our solar system is 4.6 billion years old. That means that Bennu is made up of some of the oldest stuff in our solar system. So samples from Bennu could tell us more about how our solar system evolved and possibly even how life began on Earth!
Learn more about asteroid Bennu, the OSIRIS-REx mission and the Earth gravity assist. 

Follow the mission on Facebook and Twitter for the latest updates. 

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


what a great day to celebrate sunshine~

i dont get why people try to convince me that the sun is 4.5 billion years old when he actually just turned 23??



*o.m // ɢɪᴈ & ᴘɪᴄᴛᴜʀᴇ ᴄʀ. ᴛᴏ ᴛʜᴇɪʀ ᴏᴡɴᴇʀᴤ*


Twelve Days of Twelve, Day 8: Character Development

There are so many facets of the 12th Doctor’s character that were so wonderfully and beautifully explored over his time as the Doctor, but right now I suppose I’m going to focus on how much the Doctor cared. And I’m not always the best at meta so bear with me if I ramble.

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First 'image' of a dark matter web that connects galaxies

Researchers at the University of Waterloo have been able to capture the first composite image of a dark matter bridge that connects galaxies together. The scientists publish their work in a new paper in Monthly Notices of the Royal Astronomical Society.

The composite image, which combines a number of individual images, confirms predictions that galaxies across the universe are tied together through a cosmic web connected by dark matter that has until now remained unobservable.

Keep reading

NAME: Cool Sun AKA The Sun

AGE: 4.5 billion years old



BACKSTORY: Formed at the beginning of the universe, the Sun is actually a star, literally, because of his very popular telenovella series that is run throughout the universe.  He has decided to take a break from that and spend some time hovering above the planet mingling with the little people.  

CHARACTER BIO: Hovering in the sky above everyone is a giant ball of gas.  But don’t worry, he only lets the gas out when no one is around, or when he laughs really hard.  

ATTACKS: Sunburn


FUN FACT: Archnemesis is the Moon.

VOICED BY: Michael Leon Wooley


“If you think because she is dead, I am weak, then you understand very little. If you were any part of killing her, and you’re not afraid, then you understand nothing at all. So, for your own sake, understand this. I am the Doctor. I’m coming to find you, and I will never, ever, stop.”

Two years ago today (November 28, 2015) we literally watched the Doctor go through hell, through a nightmare of a castle, and it was all for a duty of care. Alone, hunted, and tortured. This was the Twelfth Doctor’s finest hour. To spend 4.5 billion years to avoid revealing a deep secret and trying to get Clara back made this highest peak of his many adventures. His soul and physical form were badly beaten and toyed with, but he never gave up. It’s yet another reason why I love this incarnation of the Doctor (and Peter) as much as I do.