INBOX ASTRONOMY NASA's Webb Redefines Dividing Line Between Planets, Stars Release date: Tuesday, April 14, 2026 10:00:00 AM Eastern Daylight Time Composition and orbit of super-chonky 29 Cygni b point to accretion within a protoplanetary disk. Where is the dividing line between stars and the most massive planets? Scientists think it may depend on how they formed. Was it from a bottom-up approach, gradually growing larger over time, or a top-down approach in which a large collection of gas and dust fragment ...Continue Reading

Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10864 Period Covered: 08:00 PM April 11, 2026 - 07:59 PM April 12, 2026 (DOY 102/0000z - 102/2359z) Program Principal Investigator Program Title Science Observations Scheduled 16985 Jessica Lu, University of California - Berkeley Hunting for Black Holes with Astrometric Microlensing 17776 Sean Terry, University of Maryland A Precursor Survey of the Roman Galactic Bulge ...Continue Reading

Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10863 Period Covered: 08:00 PM April 10, 2026 - 07:59 PM April 11, 2026 (DOY 101/0000z - 101/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17776 Sean Terry, University of Maryland A Precursor Survey of the Roman Galactic Bulge Time Domain Fields 17786 Keri Hoadley, University of Florida Tracing the beginnings, endings, and rarity of ...Continue Reading

Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10862 Period Covered: 08:00 PM April 09, 2026 - 07:59 PM April 10, 2026 (DOY 100/0000z - 100/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17786 Keri Hoadley, University of Florida Tracing the beginnings, endings, and rarity of Blue Ring Nebulae to a rare stage in post-stellar merger evolution 18036 Monique Aller, Georgia Southern Unive ...Continue Reading

Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10861 Period Covered: 08:00 PM April 08, 2026 - 07:59 PM April 09, 2026 (DOY 099/0000z - 099/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17774 Joseph Burchett, New Mexico State University Multiphase gas in eROSITA-detected galaxy groups and clusters 17776 Sean Terry, University of Maryland A Precursor Survey of the Roman Galactic B ...Continue Reading

Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10861 Period Covered: 08:00 PM April 08, 2026 - 07:59 PM April 09, 2026 (DOY 099/0000z - 099/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17774 Joseph Burchett, New Mexico State University Multiphase gas in eROSITA-detected galaxy groups and clusters 17776 Sean Terry, University of Maryland A Precursor Survey of the Roman Galactic B ...Continue Reading

Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10860 Period Covered: 08:00 PM April 07, 2026 - 07:59 PM April 08, 2026 (DOY 098/0000z - 098/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17716 Michael McDonald, Massachusetts Institute of Technology Probing Multiphase Cooling Via OVI Emission in the Cores of the Most Extreme Cooling Flows 17786 Keri Hoadley, University of Florida T ...Continue Reading

JWST Observer Latest News Join Us for JWebbinar 48 - NIRSpec and NIRISS Calibration Update This JWebbinar will provide an update on the performance and calibration quality of NIRSpec and NIRISS. 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 #10859 Period Covered: 08:00 PM April 06, 2026 - 07:59 PM April 07, 2026 (DOY 097/0000z - 097/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17716 Michael McDonald, Massachusetts Institute of Technology Probing Multiphase Cooling Via OVI Emission in the Cores of the Most Extreme Cooling Flows 17734 Bart Wakker, Eureka Scientific Inc. A ...Continue Reading

Earlier reports Convert Day of Year The Hubble Space Telescope Unlocking the Secrets of the Universe Daily Report #10858 Period Covered: 08:00 PM April 05, 2026 - 07:59 PM April 06, 2026 (DOY 096/0000z - 096/2359z) Program Principal Investigator Program Title Science Observations Scheduled 17776 Sean Terry, University of Maryland A Precursor Survey of the Roman Galactic Bulge Time Domain Fields 17833 Julianne Dalcanton, Flatiron Institute Bringing HST to the VLA: The Interaction of ...Continue Reading