Under the tropical skies of Puerto Rico, a new observatory joined the LaserSETI Network, expanding the SETI Institute’s ability to search for technosignatures. Bringing cutting-edge instruments to an island with an already astronomical history, the project will scan the heavens for fleeting flashes of light. With this installation, Puerto Rico now plays a central role in optical SETI efforts.
Learn more: https://www.seti.org/news/laserseti-expands-network-to-puerto-rico-growing-toward-allsky-coverage/
![Ein Bild des Hubble-Weltraumteleskops mit Sirius A, den hellsten Stern unseres Nachthimmels, zusammen mit seinem schwachen, winzigen Begleitstern Sirius B. Astronomen haben das Bild von Sirius A [in der Mitte] überbelichtet, damit der schwache Sirius B [winziger Punkt unten links] sichtbar wird. Die kreuzförmigen Beugungsspitzen und konzentrischen Ringe um Sirius A sowie der kleine Ring um Sirius B sind Artefakte, die im Bildgebungssystem des Teleskops entstehen.](/proxy/post_attachment/864055/16b7696933.jpg "Ein Bild des Hubble-Weltraumteleskops mit Sirius A, den hellsten Stern unseres Nachthimmels, zusammen mit seinem schwachen, winzigen Begleitstern Sirius B. Astronomen haben das Bild von Sirius A [in der Mitte] überbelichtet, damit der schwache Sirius B [winziger Punkt unten links] sichtbar wird. Die kreuzförmigen Beugungsspitzen und konzentrischen Ringe um Sirius A sowie der kleine Ring um Sirius B sind Artefakte, die im Bildgebungssystem des Teleskops entstehen.")
!["During a routine time-lapse observation of the solar chromosphere [the thin, reddish layer of the Sun’s atmosphere above the visible surface], I captured a serendipitous moment when an aircraft crossed the field of view. Preserving this transient frame, I employed multiple blending modes to enhance the details of the solar background. Beyond stacking individual video frames, I processed the sequence, undertook colour inversion and synthesised 100 images through combined mean and minimum blending. This dual approach effectively accentuated both bright plages [active regions in the chromosphere] and dark laments through enhanced contrast.
"The composite image reveals the evolution of the Sun’s dynamic surface across a two-hour observational period, while the aircraft’s two-second transit remains frozen in time. This layered imaging rearranges time, blending celestial bodies and human technology in one photo."](/proxy/post_attachment/867287/4d17b864b7.webp "\"During a routine time-lapse observation of the solar chromosphere [the thin, reddish layer of the Sun’s atmosphere above the visible surface], I captured a serendipitous moment when an aircraft crossed the field of view. Preserving this transient frame, I employed multiple blending modes to enhance the details of the solar background. Beyond stacking individual video frames, I processed the sequence, undertook colour inversion and synthesised 100 images through combined mean and minimum blending. This dual approach effectively accentuated both bright plages [active regions in the chromosphere] and dark laments through enhanced contrast.
\"The composite image reveals the evolution of the Sun’s dynamic surface across a two-hour observational period, while the aircraft’s two-second transit remains frozen in time. This layered imaging rearranges time, blending celestial bodies and human technology in one photo.\"")
