Light echoes ripple from ancient supernova

Read more: http://space.newscientist.com/article/dn13514

Dust clouds glow thanks to delayed "light echoes" from a supernova, 400 years after light from the original event washed over Earth (Images: X-ray: NASA/CXC/Rutgers/J Warren/J Hughes; Optical light echo: NOAO/AURA/NSF/Harvard/A Rest et al; LMC image: NOAO/AURA/NSF/S Points/C Smith/MCELS team)

Category:

Science & Technology

Tags:

• supernova
• new
• scientist
• newscientist

[ClanRooster]

My attempt at an explanation of this video: The 'light echo' is in the 'LMC' - Large Magellanic Cloud - a faint object visible only in the southern hemisphere in the Dorado constellation. SNR0509 means 'Super Nova Remnant' 0509. The original supernova event occurred around 1600 (AD). The LMC is about 150,000 light-years from earth, and is names for Ferdinand Magellan. Chandra is an orbiting X-Ray Observatory. The end bit is a timelapse animation rendered from several years optical observations.

[thoughtwaretv]

Thank you ClanRooster.

[schmootzy]

how...in the fuck do they notice shit like this

[blackskvll]

thats because we haven't figured out how to 'fold' the fabrics of the universe

[ken15151515]

i hate this universe,human cant travel on 3000,000km/sec,there's no way that we could go in to another galaxy,and a lightyear is "how light travel in a year",and if we could not reach the speed of light,its totaly imposible,because if we travel way slower than the light-speed,it take us hundreds or thounands of year to reach a light-year

[ken15151515]

as it said,400 years had passed and the light reach the earth after the explosion,it got to be way too far,since the light travels at aprox. 300,000km/sec,,,bassed in my calculations,the supernova is about 3,658,136,000,000,000km away from us

[ClanRooster]

Observing distant stellar phenomena is all about collecting enough photons to reveal the object in detail. For example, if you look at the milky way for just a few seconds it will look 'faint'. However - if you look at it for five minutes you eye will have received more photons and it will look 'brighter'. The best example of this are the famous Hubble Deep Field (HDF) images. After about ten days focussed on the same piece of sky the Hubble collected enough photons to resolve a myriad galaxies.

[dmcdante7989]

is it light as in faint or light as in bright?

[ClanRooster]

More thoughts on this very interesting video. Firstly the phenomena deserves more careful study. Assuming we are looking at the westward progression of the lightwave we should also observe the wave at the other three quadrants - north, south and east. Surely there is an opportunity to observe previously 'unlit' parts of space here, and if dark matter is of the 'macho' type it would be illuminated as a matter of course.

[ClanRooster]

Lol ! My first hater ! Did your keen observation of my message extend to counting the characters in my message I wonder? Exactly 500 characters - go on - count-em... Regarding writing style -I see you have taken the form of a backhanded complement to the next level.

[oreothepuppy]

...ok...