1. coolsciencegifs:

    Polymer absorbs water and expands. It keeps almost the same refractive properties as water and appears invisible.

    The polymer is Sodium Polyacrylate (thank you, thecraftychemist!)


    (via scinerds)


  2. revoltmonkey:




    When people constantly tell me “old movies are boring.”


    "Old movies aren’t funny because they don’t swear."


    "There aren’t any cute guys."


    "Are you trying to be a hipster or something?"


    "its in black and white"


    "There’s bad acting"


    "the story is pointless"


    lets not forget about Cary Grant


    "the special effects look fake"


    "They aren’t relevant anymore"


    (via truth-has-a-liberal-bias)


  3. astronemma:

    First Ring System Around Asteroid

    Observations at many sites in South America, including ESO’s La Silla Observatory, have made the surprise discovery that the remote asteroid Chariklo is surrounded by two dense and narrow rings. This is the smallest object by far found to have rings and only the fifth body in the Solar System — after the much larger planets Jupiter, Saturn, Uranus and Neptune — to have this feature. The origin of these rings remains a mystery, but they may be the result of a collision that created a disc of debris. The new results are published online in the journal Nature on 26 March 2014.

    Continue reading via ESO

    Images: Artist’s impression of the rings around Chariklo. Credit: ESO/L. Calçada/M. Kornmesser/Nick Risinger.

    (via scienceing)



  5. resistkxl:


  6. aldoclemens:

    An amazing, billion-year show: a dance of half a trillion stars 

    (via abcstarstuff)


  7. spaceplasma:

    Pastel Rings

    The rings of Saturn have puzzled astronomers since Galileo Galilei discovered them with his telescope in 1610. Detailed study by the Voyager 1 and Voyager 2 spacecraft in the 1980s only increased the mystery.

    There are billions of ring particles in the entire ring system. The ring particle sizes range from tiny, dust-sized icy grains to a few particles as large as mountains. Two tiny moons orbit in gaps (Encke and Keeler gaps) in the rings and keep the gaps open. Other particles (10s to 100s of meters) are too tiny to see, but create propeller-shaped objects in the rings that let us know they are there. The rings are believed to be pieces of comets, asteroids or shattered moons that broke up before they reached the planet. Each ring orbits at a different speed around the planet. Information from NASA’s Cassini mission will help reveal how they formed, how they maintain their orbit and, above all, why they are there in the first place.

    Image Credit: NASA/JPL/Space Science Institute

    (via abcstarstuff)


  8. spaceplasma:

    Centaurus A Extreme Deep Field - 120 Hours of Exposure!

    Centaurus A (or Cen A to its friends) is a nearby galaxy with a weird history. It’s an elliptical galaxy—a giant cotton ball collection of stars—that was, until recently, two separate galaxies that collided and merged. It has a huge dust lane cutting right across the middle, a sure-fire sign that the galaxy was the result of a cosmic train wreck.

    The features you can see are astonishing. The galaxy has a massive central black hole, and is actively gobbling down matter (which is why it’s called an active galaxy). You can’t see the black hole itself, but blasting away from the black hole at a good fraction of the speed of light are a pair of jets, beams of matter and energy heading in opposite direction.

    The detail is amazing, and you really seriously want to embiggen it

    Full Article

    Credit: Rolf Olsen / Phil Plait

    For more awesome photos: rolfolsenastrophotography.com



  9. jtotheizzoe:

    Bad Astronomy Facts: A Year of Space Stuff

    Phil Plait gave the world something beautiful last year. The Bad Astronomy blogger posted a short astronomy fact to Twitter every day for the past year (tagged #BAFact). Here we are a year later, and with one for the leap year and an extra for today … the total is at 367 Twitter-sized factoids to make you a better science citizen.

    Enjoy the whole collection, archived at Bad Astronomy. Oh, and don’t expect to get anything done for the next couple hours.