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    Station Trio Nears Departure During Busy Day of Blood Research

    Three Expedition 73 crewmates will end their stay aboard the International Space Station when they undock Dec. 8 and return to Earth a few hours later. In the meantime, blood research took precedence on Thursday ensuring astronauts stay healthy while living long-term in weightlessness.

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    NASA’s Hubble Space Telescope Revisits Interstellar Comet

    An image from NASA’s Hubble Space Telescope showing the interstellar comet 3I/ATLAS. The comet is a small white dot in the center of the image, with a light blue halo of light that takes up most of the image. Other stars are shown streaking across the image as diagonal blue-white lines.

    NASA’s Hubble Space Telescope reobserved interstellar comet 3I/ATLAS Nov. 30, with its Wide Field Camera 3 instrument. At the time, the comet was about 178 million miles (286 million kilometers) from Earth. Hubble tracked the comet as it moved across the sky. As a result, background stars appear as streaks of light. Hubble previously observed […]

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    NASA’s Psyche Mission Tracks Interstellar Comet 3I/ATLAS

    As shown in this annotated composite image, NASA’s Psyche mission acquired these four observations of interstellar comet 3I/ATLAS over the course of eight hours on Sept. 8 and 9, 2025, when the comet was about 33 million miles (53 million kilometers) from the spacecraft.

    NASA’s Psyche observed interstellar comet 3I/ATLAS over the course of eight hours on Sept. 8 and 9, when the comet was about 33 million miles (53 million kilometers) from the spacecraft. Captured by the mission’s multispectral imager, these observations help astronomers refine the trajectory of 3I/ATLAS. Psyche’s multispectral imager instrument comprises a pair of identical […]

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    NASA’s PUNCH Tracks Comet Discovered by SOHO Spacecraft

    A comet with a bright, white head and a fainter white tail stretching to the lower left appears near the center of a field of stars. Two bright objects appear to the left of the comet's tail. White grid lines cross the field horizontally and vertically.

    From August to October, NASA’s PUNCH (Polarimeter to Unify the Corona and Heliosphere) mission tracked comet 2025 R2 (SWAN) — one of the thousands of comets discovered in images from the SOHO (Solar and Heliospheric Observatory) spacecraft, a joint mission between NASA and ESA (European Space Agency) that launched 30 years ago Tuesday. Capturing a new image […]

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    Space Station First: All Docking Ports Fully Occupied, 8 Spacecraft on Orbit

    For the first time in International Space Station history, all eight docking ports aboard the orbital outpost are occupied following the reinstallation of Northrop Grumman’s Cygnus XL cargo spacecraft to the Earth-facing port of the station’s Unity module. The eight spacecraft attached to the complex are: two SpaceX Dragons, Cygnus XL, JAXA’s (Japan Aerospace Exploration Agency) HTV-X1, two Roscosmos Soyuz crew spacecraft, and two Progress cargo ships.

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    Strong Flare Erupts From Sun

    In this animated GIF, a portion of the Sun appears in shades of orange, yellow, and black with the brightest regions appearing yellow. The Sun appears against a black background. On the upper left edge of the Sun a bright flash of yellow appears, a solar flare, and then a plume of yellow and orange material rises away from the Sun from the same location as the flare.

    The Sun emitted a strong solar flare, peaking at 9:49 p.m. ET on Nov. 30, 2025. 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 and astronauts. […]

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