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440<p align="left"><u>APOD:</u><a href="https://apod.nasa.gov/apod/ap260915.html" target="_blank"><img src="https://apod.nasa.gov/apod/image/2609/MoonVenus_Mariat_960.jpg" align="left" border="1" width="175" hspace="4" vspace
440="4"><b>A Daytime Eclipse: Moon Occults Venusn</b></a>
441</br>
442Image Credit & Copyright: Arnaud Mariat
443<br></br> 
444Explanation: There was something behind the clouds. Upon close inspection, it was the Moon, which was hard to see yesterday around noon above the small village of Cessy, France. But soon, it was not only the Moon. As expected, a bright dot suddenly appeared from behind the Moon -- the planet Venus far in the distance. Captured in the single featured exposure, both appeared to show a crescent phase. The Moon's crescent was quite slight -- with only about 10 percent of its face illuminated by the Sun. In contrast, Venus's crescent was more full -- showing about 25 percent illumination. Venus appeared brighter because it is nearer the Sun and because its clouds are more reflective than the dark lunar surface. An occultation of Venus by the Moon is visible to only about 10 percent of the Earth, but in yesterday's event even most of that was experiencing daytime.
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477<p align="left"><u>APOD:</u><a href="https://apod.nasa.gov/apod/ap260917.html" target="_blank"><img src="https://apod.nasa.gov/apod/image/2609/JWST_Treasure_Chest_800.jpg" align="left" border="1" width="175" hspace="4" vspace="4"><b>A Treasure Chest in the Carina Nebula</b></a>
478<br>  
479<!--<iframe width="350" height="200" src="https://apod.nasa.gov/apod/image/2601/Eruption_SDO.mp4" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>-->
480<br>
481Image Credit & Copyright: ESA/Webb, NASA & CSA, M. Reiter; Acknowledgement: M. H. Özsaraç
482Text: Cecilia Chirenti (NASA GSFC, UMCP, CRESST II)
483<br></br> 
484Explanation: This treasure chest is full of stars. The featured image was obtained with NASA's James Webb Space Telescope and shows a dust pillar in the Carina Nebula inside our Galaxy, roughly 7500 light-years away. It is formed by interstellar gas and dust, and shaped by powerful stellar winds and radiation form neighboring stars like the nearby Eta Carinae stellar system which is more luminous than 5 million suns. The star formation inside the pillar is excavating its head, creating the open lid of the chest. Astronomers estimate that there are about 70 stars in a compact cluster inside the pillar. This cluster is now thought to be only around 1.3 million years old. Its bounty of young stars includes a massive star approximately 19 times as massive as the Sun. More massive stars are rarer, shine brighter and evolve faster than less massive stars. They are the shiniest jewels in the treasure chest.
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508<p align="left"><u>APOD:</u><a href="https://apod.nasa.gov/apod/ap260922.html" target="_blank"><img src="https://apod.nasa.gov/apod/image/2609/PlaneIssSpots_Horalek_960.jpg" align="left" border="1" width="175" hspace="4" vspace
508="4"><b>Chance Triple Alignment: Plane, Space Station, Sun</b>
509<!--<iframe width="350" height="200" src="https://www.youtube.com/embed/wUdGPOx3zAk" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></a>-->
510</a>
511</br> 
512Image Credit & Copyright: Petr Horalek / Inst. Physics Opava
513<br></br>
514Explanation: This shot captured an unexpected silhouette. Which is it? It isn't the sunspots, the small dark regions caused by concentrated magnetic fields visible around the Sun's bright disk. Sunspots typically last for weeks and were expected, since these spots were seen previously. It isn't the International Space Station (ISS), the small dark structure on the middle left.  This is because the featured picture was planned with sub-second timing to record the iconic structure passing before the Sun. It is the airplane. Just as this exposure was taking place in June, from Prasek in the Czech Republic, an airplane began its own miniature partial eclipse. The result is this triply aligned image of our Sun. The photographer estimates that the chance of any random Sun image containing silhouettes of both a space station and an airplane, from that location, is about 30 million to one. 
515</br></br></p>
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521<p align="left"><br> <u>APOD:</u><a href="https://apod.nasa.gov/apod/ap230406.html" target="_blank"><img src="https://apod.nasa.gov/apod/image/2304/2023-03-22_Terran-1-GLHF_Kraus_thumb.jpg" align="left" border="1" width="175" hspace="4" vspace="4"><b>Terran 1 Burns Methalox</b></a>
522</br> 
523Image Credit: Relativity / John Kraus
524<br></br>
525Explanation: Relativity's Terran 1 Rocket is mostly 3D-printed. It burns a cryogenic rocket fuel composed of liquid methane and liquid oxygen (methalox). In this close-up of a Terran 1 launch on the night of March 22 from Cape Canaveral, icy chunks fall through the stunning frame as intense blue exhaust streams from its nine Aeon 1 engines. In a largely successful flight the inovative rocket achieved main engine cutoff and stage separation but fell short of orbit after an anomaly at the beginning of its second stage flight. Of course this Terran 1 rocket was never intended to travel to Mars. Still, the methane and liquid oxygen components of its methalox fuel can be made solely from materials found on the Red Planet. Methalox manufactured on Mars could be used as fuel for rockets returning to planet Earth.
526</br></br></p>
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