1. Space isn’t remote at all. It’s only an hour’s drive away, if your car could go straight upwards.
    — 

    Fred Hoyle

    (via scienceisbeauty)

    That is certainly true. And the force of gravity there is almost the same as here on earth. However, the difficult thing about spaceflight is that it’s not enough to go high, you also have to go fast. For the “low earth orbit” (LEO) you need an orbital speed of 28 476 km/h (17 964 mph or 7910 m/s) , which can’t be reached with your average car. And you don’t feel gravity in LEO (even though it’s still there), because you are constantly falling. It’s just that you are constantly missing earth.

     
  2. 15:54

    Notes: 2455

    Reblogged from astronomicalwonders

    astronomicalwonders:

The Jellyfish Nebula - IC 443
"The Jellyfish Nebula is a Galactic supernova remnant (SNR) in the constellation Gemini. On the plan of the sky, it is located near the star Eta Geminorum. Its distance is roughly 5,000 light years from Earth.
IC 443 may be the remains of a supernova that occurred 3,000 - 30,000 years ago. The same supernova event likely created the neutron star CXOU J061705.3+222127, the collapsed remnant of the stellar core. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds.”
Credit: NASA/ESA/Wikipedia

    astronomicalwonders:

    The Jellyfish Nebula - IC 443

    "The Jellyfish Nebula is a Galactic supernova remnant (SNR) in the constellation Gemini. On the plan of the sky, it is located near the star Eta Geminorum. Its distance is roughly 5,000 light years from Earth.

    IC 443 may be the remains of a supernova that occurred 3,000 - 30,000 years ago. The same supernova event likely created the neutron star CXOU J061705.3+222127, the collapsed remnant of the stellar core. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds.”

    Credit: NASA/ESA/Wikipedia

     
  3. 15:53

    Notes: 1140

    Reblogged from indigo-deoxys

    bigsamthompson:

    rvsa's Link to the Past sketches give me the feels. (pixiv/flickr)

     
  4. for my German followers

     
  5. 23:21

    Notes: 11

    Reblogged from emitflesti

     
  6. 23:19

    Notes: 57

    Reblogged from vanjalen

    
its not fair

    its not fair

     
  7. 23:19

    Notes: 57

    Reblogged from vanjalen

    
its not fair

    its not fair

     
  8. 23:18

    Notes: 32

    Reblogged from chevreau

    Tags: barefoot genhadashi no gen

    History tends to repeat itself if we don’t learn from the past, and the end is always the same.

    History tends to repeat itself if we don’t learn from the past, and the end is always the same.

     
  9. 23:16

    Notes: 48

    Reblogged from human-interest

    The most important treasure of humanity is peace.
    — Keiji Nakazawa (via human-interest)
     
  10. planettom:

9/15/2014 ESA announces Site J landing November 11 on Comet 67P/Churyumov-Gerasimenko, Philae lander of Rosetta space probe.   Basically the left rump of the rubber duck.From space.com.

    planettom:

    9/15/2014 ESA announces Site J landing November 11 on Comet 67P/Churyumov-Gerasimenko, Philae lander of Rosetta space probe.   Basically the left rump of the rubber duck.

    From space.com.

     
  11. 
This is human rights activist Maryam Al-Khawaja. In August, she was arrested and detained by Bahraini authorities as a result of her human rights work. In a hearing on Saturday, she appeared in court with her arm in a sling and called the accusations made against her “vindictive and fabricated”.Join our Urgent Action Network and write a letter to release Maryam here.

    This is human rights activist Maryam Al-Khawaja. In August, she was arrested and detained by Bahraini authorities as a result of her human rights work. 

    In a hearing on Saturday, she appeared in court with her arm in a sling and called the accusations made against her “vindictive and fabricated”.

    Join our Urgent Action Network and write a letter to release Maryam here.

    (Source: globalamnestyinternational)

     
  12. 14:16

    Notes: 355768

    Reblogged from indigo-deoxys

    "May I ask why you felt little Tiffany deserved to die?"

    (Source: kazuos)

     
  13. 12:52 14th Sep 2014

    Notes: 2741

    Reblogged from scishow

    edwardspoonhands:

    Randall Munroe is a bit of a genius and hopefully he doesn’t see this because I’d be embarrassed to have him hear me say it. 

    He’s one of the greatest science explainers of my generation…possibly the greatest. He does it not by explaining science and math and calculus and biology for the sake of understanding it, but by seeking answers. 

    And look, that’s why we created biology and calculus and chemistry anyhow. So by searching for answers to really WEIRD questions. Questoins like “Can I build a jetpack out of machine guns” (surprisingly yes, but don’t) and “How much space would all of Google take up if it was on punch cards” (it would bury New England to the height of several kilometers.) And “What would happen if the Earth just stopped spinning but the atmosphere kept moving” (everyone would die, some people less slowly than others.)

    To find these answers, Randall does intense amounts of research and also lots and lots of math.

    In his “What If?” column he uses this marvelous toolbox that we’ve developed over the last 100,000 years of being a species in such exciting ways that you don’t even know how smart you’re getting as you read it. 

    Now he’s turned “What if?” into a book and it is SO MUCH FUN. It’s hilarious and fascinating and shows the kind of obsession with the universe that I find infectious. I’ve been devouring it since I got my copy.

    I’ve flown out to San Francisco to interview Randall on the Vlogbrothers channel (Colbert just did an interview with him last week so I guess I’m in good company.) His understanding of the world is extremely deep so he’s able to share only the bits that are either hilarious or fascinating. I’m nervous to spend a bunch of time with him, but very excited to bring his work (I hope) to more people and ideally help sell some copies of his book (which I’m sure is doing just fine without me.)

    The Hangout starts in about two hours and I’m gonna go hang out in the chat for it right now

     
  14. Usually I rarely buy Haribo, because there is gelatine from animals inside, but python.

    Usually I rarely buy Haribo, because there is gelatine from animals inside, but python.

     
  15. 00:04 10th Sep 2014

    Notes: 25161

    Reblogged from cozydark

    kavaeric:

    I look up — many people feel small because they’re small and the Universe is big — but I feel big, because my atoms came from those stars. There’s a level of connectivity.

    That’s really what you want in life, you want to feel connected, you want to feel relevant, you want to feel like a participant in the goings on of activities and events around you.

    That’s precisely what we are, just by being alive…


    - Dr. Neil DeGrasse Tyson [ x ]