(Image credit: Solar Dynamics Observatory, NASA) Don't be alarmed, but the sun is constantly exploding. While violent nuclear fusion reactions power the sun's 27-million-degree-Fahrenheit (15 million degrees Celsius) core, towers of molten plasma, crackling radiation and electromagnetic energy ri...
Credit: NASA/Solar Dynamics Observatory An active region rotated into view and sputtered with numerous small flares and towering magnetic field lines that stretched out many times the diameter of Earth (May 23-25, 2018). Active regions are areas of intense magnetic energy. The field lines are ...
The house was almost a real Victorian: all-wood construction (a contrast to the predominantly brick or concrete buildings in the Netherlands), with creaking floorboards, insufficient ventilation on humid summer days and – during later winter visits – steam running through the small radiators in a...
". In this regard, my reaction to some of the images could illustrate one reason why such an approach - by itself - is so little used in astronomy, namely "gee, those simulated galaxies look, to me, so different from the real galaxies he says they resemble, in certain key aspects...
Then we present a multifractal analysis of Quiet Sun images. Our aim is to identify a model that would permit to simulate images that are similar to real ones, and to use the scale invariance property to obtain artificial images at any finer resolution. We compare various families of models ...
which lies in the constellation of Sagittarius. The Milky Way, made by the light of billions of distant stars, forms a luminous band slanting down and to the right. Dark lanes seen in the Milky Way are real features familiar to astronomers. They are created by dust clouds in the disk of...
But it’s a real marvel: The sun warms our planet every day, provides the light by which we see and is necessary for life on Earth. It can also cause cell death and make us blind. It could fit 1.3 million Earths inside its sphere [source: SpaceDaily]. It produces poem-worthy ...
This image of the sun was captured by NASA's Solar Dynamics Observatory in 2015.(Image credit: NASA/SDO) "It's harder than you think just to put a ruler on these images and figure out how big the sun is — [SDO] doesn't have enough precision to nail this down," NASA researcher ...
The footage in this video was collected by the Solar Dynamics Observatory’s AIA instrument. SDO collected one frame every 12 seconds, and the movie plays at 30 frames per second, so each second in this video corresponds to 6 minutes of real time. The video covers 12:30 a.m. EDT to ...
The VRaySun Sky reproduces the real-life Sun and Sky environment of the Earth, coded so that they change their appearance depending on the direction of the VRaySun. The V-Ray Sun and Sky are based largely on the SIGGRAPH 1999 paper A Practical Analytic Model for Daylight [1]. For a mo...