*** The Official Astronomy & Universe Thread ***


This movie shows a simulation of the merger of two black holes and the resulting emission of gravitational radiation. The colored fields represent a component of the curvature of space-time. The outer sheets (red) correspond directly to outgoing gravitational radiation, which was recently detected by the NSF’s LIGO observatories
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Solar Dynamics Observatory from Jan. 1, 2015, to Jan. 28, 2016, as one time-lapse sequence. At full quality on YouTube, this video is ultra-high definition 3840x2160 and 29.97 frames per second. Each frame represents 2 hours. A downloadable version which has a frame rate of 59.94 with each frame representing 1 hour is here:

https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=12144


SDO's Atmospheric Imaging Assembly (AIA) captures a shot of the sun every 12 seconds in 10 different wavelengths. The images shown here are based on a wavelength of 171 angstroms, which is in the extreme ultraviolet range and shows solar material at around 600,000 kelvins (about 1,079,540 degrees F). In this wavelength it is easy to see the sun's 25-day rotation.

During the course of the video, the sun subtly increases and decreases in apparent size. This is because the distance between the SDO spacecraft and the sun varies over time. The image is, however, remarkably consistent and stable despite the fact that SDO orbits Earth at 6,876 mph, and Earth orbits the sun at 67,062 mph.

Scientists study these images to better understand the complex electromagnetic system causing the constant movement on the sun, which can ultimately have an effect closer to Earth, too: Flares and another type of solar explosion called coronal mass ejections can sometimes disrupt technology in space. Moreover, studying our closest star is one way of learning about other stars in the galaxy. NASA's Goddard Space Flight Center in Greenbelt, Maryland, built, operates and manages the SDO spacecraft for NASA's Science Mission Directorate in Washington, D.C.

Credit: NASA's Goddard Space Flight Center/Wiessinger
Music: "Tides," a track available from Killer Tracks
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More:

http://www.nasa.gov/sdo

http://sdo.gsfc.nasa.gov/
 
For those of you on the other side of the world:

Total Solar Eclipse - 8 March 2016 – 9 March 2016

uymL0pi.jpg

The total solar eclipse will be visible from Sumatra, Borneo, Sulawesi and from locations in the Pacific ocean.

The eclipse will be partial for people in South and East Asia and northern and eastern Australia.

The eclipse will begin at 23:20 UTC, on March 8 with the maximum point of the eclipse occuring at 02:00 UTC on March 9. Totality will last for 4 mins 09 secs.


 
Watching the search for life: Drake Equation. Really interesting wanted tot know what he thought at the time and the updates as science has progressed. On Netflix Canada might be in other regions.

Wonder if anyone has done an update equation, as it's far to simple imho. Doesn't take into accoutre things like a lot of the milkway being uninhabitable sue to radiation towards the core. And unlikely that life could exist in the early milkway. Still have the same issue, some if the factors if the equation aren't even estimates just complete stab in the dark guess work.
 
Now they have found gravitational waves.

Do you think we will now be able to find a way to manipulate them?

By the way this is general question to everyone. ;)
 
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