Climate

NASA’s Neil Gehrels Swift Observatory has resumed use of its third science instrument, the Burst Alert Telescope, after the mission returned to data collection in August. Flight controllers have also allowed the spacecraft to resume automatically repointing its other telescopes to examine new high-energy flashes in the sky. The returnContinue Reading

APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss Debate Proceedings Six published papers from the 1998 debate appeared in the 1999 March issue of the Publications of the Astronomical Society of the Pacific. The proceedings include an opening commemoration of David N. Schramm by the moderator,Continue Reading

Minister of Industry and Technological Research Rossano Fabbri signed on behalf of San Marino. Gregory Mann, NASA Europe representative, and U.S. Consul General in Florence Joseph Tordella participated in the event on Friday, Sept. 25, 2026. Credit: U.S. Department of State The Republic of San Marino became the 76th signatoryContinue Reading

EDWIN POWELL HUBBLE November 20, 1889-September 28, 1953 from an article by N.U. Mayallin BIOGRAPHICAL MEMOIRS NAS 41 Courtesy NASA SpaceLink Edwin Hubble, by his inspired use of the largest telescope of his time, the 100 inch reflector on the Mount Wilson Observatory, revolutionized our knowledge of the size, structure,Continue Reading

Cosmic Origins … Cosmic Origins Community Galaxies SIG Seminar, 6… About Community Executive Committee Science Groups Conferences Cosmic Pathfinders Early Career Workshop Opportunities Missions Studies News & Events Resources   Galaxies SIG Seminar Galaxies Science Interest Group Galaxies SIG about Galaxies SIG Seminar Location Virtual DAtes 6 October 20261:00pm ETContinue Reading

Northrop Grumman’s Cygnus XL cargo spacecraft fires its engines while berthed to the Unity module, lifting the International Space Station’s orbit on Aug. 27, 2026. NASA Northrop Grumman’s Cygnus XL spacecraft today fired its thrusters for 18 minutes boosting the International Space Station’s orbit.   The Cygnus XL’s gimbaled delta velocity engine was used to adjustContinue Reading

APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss The Scale of the Universe – Great Debate in 1996 Debate Proceedings Six published papers from the 1996 debate which appeared in the 1996 December Publications of the Astronomical Society of the Pacific. Included are the two introductoryContinue Reading

Tammann – van den Bergth Baird AuditoriumThe Smithsonian InstitutionNational Museum of Natural History 21 April 1996 Debate Program: 1 – 4:30 pm; Reception: 4:30 – 5:30 pm Sponsors: The Smithsonian Institution Laboratory for Astrophysics,National Air and Space Museum;NASA Compton Gamma Ray ObservatoryScience Support Center;George Mason University Center for Earth ObservingandContinue Reading

ESA/Hubble & NASA, D. Thilker, the MAUVE-HST Team A chaotic secret hides within this seemingly serene image of spiral galaxy NGC 4698 taken by NASA’s Hubble Space Telescope and released on Sept. 18, 2026. As a spiral galaxy like our own Milky Way galaxy, NGC 4698 has spiral arms thatContinue Reading