Illustration of a black hole Elements of this image furnished by NASA.

/NASA urls:
https://www.nasa.gov/multimedia/imagegallery/image_feature_311.html
(https://www.nasa.gov/sites/default/files/images/113035main_image_feature_310_ys_full.jpg)
https://solarsystem.nasa.gov/resources/429/perseids-meteor-2016/
https://www.nasa.gov/feature/goddard/2017/hubble-detects-exocomets-taking-the-plunge-into-a-young-star
(https://www.nasa.gov/sites/default/files/thumbnails/image/stsci-h-p1702a-m2000x1455.png)
https://www.nasa.gov/centers/jpl/news/pulsar20131106.html
(https://www.nasa.gov/sites/default/files/pulsar20131106-full_0_0.jpg)
https://images.nasa.gov/details-GSFC_20171208_Archive_e001618.html