A micrometeoroid hit one of the James Webb Space Telescope’s primary mirror segments last month, causing “marginally detectable” degradation.
Webb optics alignment achieves near perfect focus
Webb primary mirror alignment proceeding smoothly
NASA opening a 50-year-old vacuum-sealed moon sample
Webb mirror segments repositioned as alignment proceeds
M77 sheds light on differences between active galactic nuclei
A third planet found orbiting nearest star to Sun
IAU “deeply concerned” about satellite mega-constellations
MeerKAT paints a mesmerising portrait of the Milky Way
Webb reaches Lagrange Point 2, setting stage for mirror alignment
Astronomers mining an increasingly rich trove of TESS exoplanet data
Look to southern Hercules and you’ll be thrilled to come across Rasalgethi (alpha [α] Herculis, the constellation’s lead star and a colour-contrast double star out of the top drawer.
Observe the best of Ophiuchus’ splendid bunch of Messier globular clusters
The Double Double: Detach Lyra’s multiple-star gem
Steve Ringwood goes back to the future, for the new STL-80A Maxi f/15 from ScopeTech is a self-confessed, unabashed return to the classical achromatic refractor.
The ScopeTech Mount Zero, highly portable single-arm fork mount
Explore Scientific 305mm Ultra Light Dobsonian: A heavyweight Ultra Light Dobsonian
This panorama was taken by the rover’s MastCam – from a ‘clay-bearing unit’ on the flank of Mount Sharp.
The magic of gravity
NGC 2217, is a galaxy in transition
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