2. spaceplasma:

    Soft X-ray Emissions from Charge Exchange in the Heliosphere

    The solar wind originates in the sun’s corona, the hottest part of its atmosphere, so its atoms have been ionized, stripped of many of their electrons. When these particles collide with a neutral atom, one of its electrons often jumps to the solar wind ion. Once captured, the electron briefly remains in an excited state, then emits a soft X-ray and settles down at a lower energy. X-rays with photon energies above 5–10 keV (below 0.2–0.1 nm wavelength) are called hard X-rays, while those with lower energy are called soft X-rays.

    Credit: NASA’s Goddard Space Flight Center

    (via ne0ndreams)


  4. antikythera-astronomy:

    ALMA Milky Way

    (via ne0ndreams)

  5. ageofdestruction:

    intrepid: Earthrise, photographed from Apollo 12, November 1969.

    5 Hasselblad photographs, taken from lunar orbit, between 18th and 21st November.

    Image credit: NASA/JSC, c/o LPI. Animation: AgeOfDestruction.

    (via ne0ndreams)

  6. (Source: lionheartsoup, via ne0ndreams)

  7. Tesla in 1885, at age twenty-nine, shortly after his arrival in the United States.
    The high-voltage high frequency current is being passed through the human body to bring the lamp to incandescence. Mr. Samuel Clemens (Mark Twain) is holding the loop over the resonating coil.
    Robert Underwood Johnson holding a loop with an incandescent lamp. Tesla is in the background at the switch.
    Mark Twain and Joseph (“Jo”) Jefferson in Tesla's South Fifth Avenue laboratory, 1894, with blurred image of Tesla between.
    Tesla holding a gas-filled phosphor coated wireless light bulb which he developed in the 1890's, half a century before fluorescent lamps come into use.
    Tesla holds a highly evacuated, gas-filled tube, powered by one of his high-frequency oscillator units. The one-amp tube operated without any connection to wires (“wireless energy”)
    Tesla's body, in this experiment, is charged to a high potential by means of a coil responsive to the waves transmitted to it from a distant oscillator.
    Tesla demonstrates “wireless” power transmission in his Houston Street laboratory in March 1899.
    Tesla sits in front of the oscillator in a second exposure.


    "The scientific man does not aim at an immediate result. He does not expect that his advanced ideas will be readily taken up. His work is like that of the planter — for the future. His duty is to lay the foundation for those who are to come, and point the way. He lives and labors and hopes."

    Nikola Tesla 

    (Source: teslauniverse.com)