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  • Sailing for Science: A 50-Day Mission to Study the Southern Ocean  

    A research vessel under full sail seems to move dynamically across the sea off the coast of a land of low green hills.

    Emmanuel Boss, Ph.D., University of Maine For 50 days during the 2026 Austral summer (January to March), the PlanktoSpace team of 18 scientists, crew members, and passengers set sail on a unique mission. Our expedition traveled 7,200 miles across the Southern Ocean aboard the Perseverance, a sailing vessel owned by a French non-profit dedicated to science and education. Because the Perseverance uses sails for most of its journey, the expedition […]

  • Artemis II Launch Day Updates

    Live launch day updates for NASA’s Artemis II test flight will be published on this page. All times are Eastern. 6:59 p.m. The Orion spacecraft’s SAWs (solar arrays wings) have fully deployed, completing a key configuration step for the Artemis II mission. Flight controllers in Houston confirmed that all four wings unfolded as planned, locking into […]

  • NASA Teams Readying Artemis II Moon Rocket for Launch

    As the Artemis II countdown moves steadily toward liftoff no earlier than 6:24 p.m. EDT, Wednesday, April 1, launch teams at NASA’s Kennedy Space Center in Florida continue completing a sequence of highly choreographed steps to ready the SLS (Space Launch System) rocket and Orion spacecraft for the crew’s journey around the Moon.  The weather forecast for launch day […]

  • NASA’s Artemis II Launch Mission Countdown Begins

    The countdown for NASA’s Artemis II test flight is underway at the agency’s Kennedy Space Center in Florida, with members of the launch team arriving at their consoles inside the Rocco Petrone Launch Control Center. The onsite countdown clock started ticking down at 4:44 p.m. EDT to a targeted launch time of 6:24 p.m. on Wednesday, April 1. Artemis II is the first crewed launch of NASA’s SLS […]

  • Crew Kicks Off Week with Cargo Mission Training and Spacewalk Cleanup

    Expedition 74 started the week training for the arrival of the next U.S. cargo mission and continuing to clean up after last week’s spacewalk. The orbital residents also practiced medical emergency procedures, unloaded supplies from a new Roscosmos resupply ship, and ensured the International Space Station remains in tip-top shape.

  • Strong Solar Flare Erupts from Sun

    The Sun, showing in gold. There are swirls of bright gold and darker areas, showing active areas on the Sun. Toward the bottom left, there is a very bright gold and white area -- the flare.

    The Sun emitted a strong solar flare, peaking at 11:19 p.m. EDT on March 29. NASA’s Solar Dynamics Observatory, which watches the Sun constantly, captured an image of the event.  Solar flares are powerful bursts of energy. Flares and solar eruptions can impact radio communications, electric power grids, navigation signals, and pose risks to spacecraft […]

  • Weather for NASA’s Artemis II Mission Launch 80% Favorable

    Ahead of call to stations at 4:34 p.m. EDT on Monday, and the countdown clock beginning at 4:44 p.m., engineers continue preparations toward the launch of the Artemis II mission from NASA’s Kennedy Space Center in Florida. The agency is targeting no earlier than Wednesday, April 1, for launch. The weather forecast shows an 80% […]