NASA’s Solar Dynamic Observatory, or SDO, was the first mission to be launched for NASA’s Living With a Star (LWS) Program, and is designed to understand the causes of solar variability and its impacts on Earth. SDO ​launched on February 11, 2010, on its journey to help us understand the Sun’s influence on Earth and Near-Earth space by studying the solar atmosphere on small scales of space and time and in many wavelengths simultaneously. SDO’s goal is to understand, driving towards a predictive capability, the solar variations that influence life on Earth and humanity’s technological systems by determining how the Sun’s magnetic field is generated and structured, and how this stored magnetic energy is converted and released into the heliosphere and geospace in the form of solar wind, energetic particles, and variations in the solar irradiance.

Each day, SDO images the sun in a variety of wavelengths. Find daily images here.

Image Credit: NASA

美国宇航局的太阳动力学观测站(SDO)是美国宇航局“与星共存”(LWS)计划的第一个发射任务，旨在了解太阳变化的原因及其对地球的影响。SDO于2010年2月11日发射，它的任务是通过同时研究小尺度空间、时间和多种波长的太阳大气，帮助我们了解太阳对地球和近地空间的影响。

SDO的目标是通过确定太阳磁场是如何产生和构成的，以及这些储存的磁能是如何以太阳风、高能粒子和太阳辐照度的变化的形式转换和释放到日光层和地球空间，从而了解影响地球上的生命和人类技术系统的太阳变化，并使之具备预测能力。

每天，SDO都会对太阳进行不同波长的成像。点击这里查看每日图片。

图片来源:NASA