Ground teams have resumed the fast fill of liquid hydrogen operations into the core stage of the SLS (Space Launch System) rocket. Operations were stopped twice after leak rates at the interface of the tail service mast umbilical exceeded allowable limits. Engineers will attempt to complete fast fill and beginContinue Reading
A SpaceX Dragon spacecraft fires its Draco engines, an independent propellant system located in the spacecraft’s trunk, for a regularly scheduled orbital reboost of the International Space Station above the Indian Ocean. NASA The Expedition 74 crew kicked off the week with SpaceX Dragon spacecraft preparations and science hardware maintenanceContinue Reading
After teams temporarily resumed fast fill of liquid hydrogen operations into the core stage, initial steps to correct the leak proved unsuccessful. The leak rate at the interface of the tail service mast umbilical continued to exceed the allowable limits. Liquid hydrogen filling operations on both the core stage andContinue Reading
Cosmic Origins … Cosmic Origins Community Next AI/ML STIG Lecture, 2 Feb… About Community Executive Committee Science Groups News & Events Cosmic Pathfinders Early Career Workshop Opportunities Missions Studies News & Events Resources Next AI/ML Science and Technology Interest Group (AI/ML STIG) Lecture 2 February 2026 February 2nd, 2026Continue Reading
The Moon is seen shining over the SLS (Space Launch System) and Orion spacecraft, atop the mobile launcher on January 28, 2026, at Launch Pad 39B at NASA’s Kennedy Space Center in Florida. NASA/Sam Lott Teams began chilling down the liquid hydrogen lines for the interim cryogenic propulsion stage of NASA’s SLS (Space LaunchContinue Reading
Roman Home About Roman Mission Overview Why is Roman Important? Who is Nancy Grace Roman? Frequently Asked Questions Mission Timeline Partners Meet the Team Science Overview Dark Energy Dark Matter Exoplanets Large Area Near-Infrared Surveys Observing with Roman General Investigator Program For Scientists Observatory Roman Observatory Wide Field Instrument CoronagraphContinue Reading
NASA’s Artemis II SLS (Space Launch System) rocket with the Orion spacecraft atop a mobile launcher is seen at Launch Complex 39B, Thursday, Jan. 29, 2026, at NASA’s Kennedy Space Center in Florida. NASA/Jim Ross NASA teams have transitioned to fast fill of the SLS (Space Launch System) rocket’s coreContinue Reading
NASA’s crawler-transporter 2 carrying the agency’s Artemis II SLS (Space Launch System) rocket and Orion spacecraft, secured to the mobile launcher, begins the 4.2-mile journey toward Launch Complex 39B at NASA’s Kennedy Space Center in Florida on Saturday, Jan. 17, 2026. NASA/Ben Smegelsky Following successful chilldown of the liquid hydrogen and liquid oxygen lines,Continue Reading
NASA/Brandon Hancock NASA’s Orion spacecraft, which will carry the Artemis II crew around the Moon, sits at the launch pad on Jan. 17, 2026, after rollout. It rests atop the SLS (Space Launch System) rocket. Orion can provide living space on missions for four astronauts for up to 21 daysContinue Reading
NASA’s IMAP (Interstellar Mapping and Acceleration Probe) began its two-year primary science mission on Feb. 1 to explore and map the boundaries of our heliosphere — the protective bubble created by the solar wind that encapsulates our solar system. The mission, which launched on Sept. 24, 2025, relies on 10Continue Reading
The Sun rises as NASA’s Artemis II SLS (Space Launch System) rocket and Orion spacecraft stand vertical at Launch Complex 39B at NASA’s Kennedy Space Center in Florida on Wednesday, Jan. 28, 2026. NASA/Cory S Huston The Artemis II wet dress rehearsal countdown continues as teams at NASA’s Kennedy Space Center inContinue Reading
The Sun emitted three strong solar flares on Feb. 1, peaking at 7:33 a.m. ET, 6:37 p.m. ET, and 7:36 p.m. ET. The Sun emitted a fourth strong solar flare on Feb. 2, peaking at 3:14 a.m. ET. NASA’s Solar Dynamics Observatory, which watches the Sun constantly, captured images ofContinue Reading
Scientists say increasing shipping traffic is interfering with the whales’ ability to hunt and communicate. To protect the animals, conservation groups are urging the International Maritime Organization to instate mandatory measures to reduce underwater noise. By Teresa Tomassoni For most of their evolutionary history, narwhals have relied more on soundContinue Reading