The European Space Agency's dark energy and dark matter spacecraft has once again found its guiding stars and is preparing for full "science mode." When you purchase through links on our site, we may ...

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The Webb team has now approved 10 out of 17 science instrument modes; since last week we added (14) MIRI imaging, (2) NIRCam wide-field slitless spectroscopy, and our final NIRISS mode, (10) ...

An unstable gyroscope has forced NASA's Hubble Space Telescope to enter safe mode, resulting in a temporary suspension of its scientific observations. Reading time 2 minutes NASA is addressing an ...

In recent decades, drag-free satellites have been used in high-precision missions, such as testing the general relativity, verifying the geodetic and frame-dragging effects, measuring Earth’s gravity ...