Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10813 Period Covered: 07:00 PM February 19, 2026 - 06:59 PM February 20, 2026 (DOY 051/0000z - 051/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17511 Jaya Maithil, Smithsonian Institution Astrophysical Observatory A Major Overhaul of Ultraviolet-Based Black Hole Mass Prescriptions 17734 Bart Wakker, Eureka Scientific Inc. A clean vi ...Continue Reading

Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10813 Period Covered: 07:00 PM February 19, 2026 - 06:59 PM February 20, 2026 (DOY 051/0000z - 051/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17511 Jaya Maithil, Smithsonian Institution Astrophysical Observatory A Major Overhaul of Ultraviolet-Based Black Hole Mass Prescriptions 17734 Bart Wakker, Eureka Scientific Inc. A clean vi ...Continue Reading

Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10812 Period Covered: 07:00 PM February 18, 2026 - 06:59 PM February 19, 2026 (DOY 050/0000z - 050/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17703 Annalisa De Cia, European Southern Observatory - Germany STIS-ISM: STIS ISM Survey in the Milky Way 17734 Bart Wakker, Eureka Scientific Inc. A clean view of the CGM for well-character ...Continue Reading

Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10811 Period Covered: 07:00 PM February 17, 2026 - 06:59 PM February 18, 2026 (DOY 049/0000z - 049/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17491 Grace Telford, University of Utah A Legacy Far-Ultraviolet Spectral Atlas of Extremely Metal-Poor O Stars 17502 David Thilker, The Johns Hopkins University Resolving gas, star formatio ...Continue Reading

Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10810 Period Covered: 07:00 PM February 16, 2026 - 06:59 PM February 17, 2026 (DOY 048/0000z - 048/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17505 Sukanya Chakrabarti, University of Alabama in Huntsville Constraining dark matter near the Galactic plane with precisely timed eclipsing binary stars 17723 Roel Lefever, Astronomisches Re ...Continue Reading

INBOX ASTRONOMY NASA’s Hubble Identifies One of Darkest Known Galaxies Release date: Wednesday, February 18, 2026 10:00:00 AM Eastern Standard Time The elusive object dubbed CDG-2 may be composed of 99% dark matter. Most galaxies in the nearby universe are quite luminous. But some are so faint they’re nearly invisible. Astronomers, using the Hubble Space Telescope in combination with other observatories, identified a galaxy that appears to be almost entirely dominated by dark matter with only a smattering o ...Continue Reading

JWST Observer Latest News JWST’s Upcoming Science Communication JWebbinar Join us for the first Webbinar in 2026 focused on JWST science communication fundamentals, including strategies and resources. View All JWST Observer News ...Continue Reading

Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10809 Period Covered: 07:00 PM February 15, 2026 - 06:59 PM February 16, 2026 (DOY 047/0000z - 047/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17702 Simon Gazagnes, University of Texas at Austin Exploring the unexpected interplay between Lyman-alpha and C IV emission using spatially resolved imaging 17723 Roel Lefever, Astronomisches ...Continue Reading

Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10809 Period Covered: 07:00 PM February 15, 2026 - 06:59 PM February 16, 2026 (DOY 047/0000z - 047/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17702 Simon Gazagnes, University of Texas at Austin Exploring the unexpected interplay between Lyman-alpha and C IV emission using spatially resolved imaging 17723 Roel Lefever, Astronomisches ...Continue Reading

Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10808 Period Covered: 07:00 PM February 14, 2026 - 06:59 PM February 15, 2026 (DOY 046/0000z - 046/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17734 Bart Wakker, Eureka Scientific Inc. A clean view of the CGM for well-characterized galaxies 17804 R. O. Loyd, Eureka Scientific Inc. STELa: Survey of Transiting Exoplanets in Lyman-alp ...Continue Reading