STEREO-A will enable such 3D viewing by synthesizing its views with NASA's and the European Space Agency's Solar and Heliospheric Observatory (SOHO) and NASA's Solar Dynamics Observatory (SDO). Your brain compares the images from each eye, and the slight differences between those images reveal which objects are closer or farther away. It's how two eyeballs, looking out at the world from offset locations, create depth perception. Stereoscopic vision allows us to extract 3D information from two-dimensional, or flat, images. In the few weeks before and after STEREO-A's flyby, scientists are seizing the opportunity to ask questions normally beyond the mission's reach.ĭuring the Earth flyby, STEREO-A will once again do something it used to do with its twin in the early years: combine views to achieve stereoscopic vision. 12, 2023, STEREO-A's lead on Earth has grown to one full revolution as the spacecraft "laps" us in our orbit around the sun. However, STEREO-A continues its journey, capturing solar views unavailable from Earth. The mission accomplished many other scientific feats over the years, and researchers studied both spacecraft views until 2014, when mission control lost contact with STEREO-B after a planned reset. Credit: NASA's Goddard Space Flight Center/Scientific Visualization Studio/Tom Bridgman The crossing comes one day before Venus passes between the sun and Earth, though the planet will appear 10 degrees below the sun from Earth's view and outside of STEREO-A's field of view. NASA’s STEREO-A spacecraft will cross the sun-Earth line on Aug.
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