Using Galaxy Clusters to Look Into the Past

Gravitational lensing has given us a look at a galaxy in the very, very distant cosmic past using x-ray light, and NASA finally got its ICON mission off the ground!

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Sources:

Old galaxy:
https://doi.org/10.1038/s41550-019-0888-7
https://academic.oup.com/mnras/article/399/3/1191/1073770
https://arxiv.org/pdf/1801.09719.pdf
https://www.eurekalert.org/pub_releases/2019-10/miot-aug101019.php
https://arxiv.org/pdf/1901.06939.pdf

ICON:
https://www.space.com/nasa-icon-space-weather-mission-launch-success.html
https://www.nasa.gov/sites/default/files/atoms/files/icon_presskit_oct2019.pdf
https://www.nasa.gov/mission_pages/launch/pegasus_countdown101.html
https://www.researchgate.net/profile/Nesrin_Sarigul-Klijn/publication/237448317_Flight_Mechanics_of_Manned_SubOrbital_Reusable_Launch_Vehicles_with_Recommendations_for_Launch_and_Recovery/links/541d1de40cf241a65a15cf41/Flight-Mechanics-of-Manned-SubOrbital-Reusable-Launch-Vehicles-with-Recommendations-for-Launch-and-Recovery.pdf

Images:

https://svs.gsfc.nasa.gov/12599
https://en.wikipedia.org/wiki/File:Accretion_disk.jpg
https://www.nasa.gov/mission_pages/chandra/multimedia/gb1428.html
https://svs.gsfc.nasa.gov/12699
https://www.nasa.gov/image-feature/hurricane-florence-as-it-was-making-landfall-0
https://svs.gsfc.nasa.gov/12910