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Everything that happens on the International Space Station revolves around one thing: Earth, sixteen times a day! So for Earth Day 2021, NASA offers a gift you can’t get anywhere else with this leisurely view of our home planet, from 250 miles up, rendered in extraordinary ultra-high definition video. Hit play, relax and enjoy. This 4K footage was recorded between 2019 and 2020.

Journey through the dynamic world of our Sun in "133 Days on the Sun: A Solar Odyssey." This captivating video, meticulously compiled by NASA’s Solar Dynamics Observatory (SDO), chronicles the mesmerizing solar activity that unfolded from August 12 to December 22, 2022. For nearly 13 years, SDO has been capturing the Sun's essence in stunning 4K x 4K resolution from its vantage point in Earth's orbit, unraveling the intricate secrets of our nearest star and its profound influence on the solar system. At the heart of this celestial exploration is SDO's powerful triad of instruments, working tirelessly to unveil the Sun's hidden tales. With a rapid frequency of 0.75 seconds, SDO snaps an image of the Sun, while the Atmospheric Imaging Assembly (AIA) instrument astounds us with images taken every 12 seconds across 10 distinct wavelengths of light. This 133-day journey of discovery is showcased through images captured at 17.1 nanometers, a wavelength in the extreme-ultraviolet spectrum that unveils the Sun's corona—the outermost layer of its atmosphere. Condensing an incredible 133 days, or approximately four months, of solar revelations into a captivating 59-minute spectacle, this time-lapse montage offers a front-row seat to the Sun's dramatic transformation. Observe the brilliant active regions that traverse the Sun's surface as it gracefully rotates—a rotation it completes in about 27 days. Admire the graceful loops that extend above these bright regions, magnetic fields delicately holding scorching plasma. These luminous regions are also the birthplace of solar flares, luminous flashes that illuminate the cosmos as magnetic fields elegantly intertwine in the mesmerizing dance of magnetic reconnection. In its unwavering vigilance, SDO occasionally misses a beat. Instances of darkness within the video arise when Earth or the Moon momentarily eclipse the observatory as they journey between the spacecraft and the Sun. Others occur due to instrumentation downtime or data anomalies, a reminder of the complex orchestration behind this astronomical symphony. Transmitting a staggering 1.4 terabytes of data daily, SDO remains an unyielding witness to the Sun's splendor, even during moments of calibration. The video's captivating journey is accompanied by a continuous mix from Lars Leonhard's "Geometric Shapes" album, courtesy of the artist, enhancing the visual voyage with an auditory delight. As SDO and a host of other NASA missions continue their unwavering vigil over the Sun, we gain further insights into our cosmic context and vital information that ensures the safety of our astronauts and space assets. Embark on an unparalleled odyssey as "133 Days on the Sun: A Solar Odyssey" unveils the enigmatic wonders of our radiant star and the mysteries it bestows upon the universe.

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