On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular intervals. The star ...

Wednesday, Jan. 8 and 15, 2025 at 9 p.m. on KPBS TV / Stream now with the PBS app —Discover how scientists are revealing new clues to the strangest and most extreme objects in the universe— They are ...

Go behind the scenes as NOVA visits the Vera Rubin Observatory in Chile. Equipped with an 8.4-meter mirror and a 3.2-billion-pixel camera—the largest digital camera ever built for astronomy—the Rubin ...

If the universe as we know it started with the Big Bang, will it also have an end? If the universe as we know it started with the Big Bang, will it also have an end? And if it’s going to end someday - ...

This NASA/ESA Hubble Space Telescope image features the spiral galaxy Messier 77, also known as the Squid Galaxy. CREDIT: ESA/Hubble & NASA, L. C. Ho, D. Thilker. Get ...