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
Ade Ashford takes this mid-range truss-tube Dobsonian for a test drive and discovers its planetary viewing prowess.
SharpStar 76EDPH refractor and F/4.5 (0.8×) full-frame reducer
StellaLyra 153mm, f/12 M-CRF classical Cassegrain telescope
NGC 2217, in the constellation of Canis Major and located about 65 million light years away, is a galaxy in transition.
NGC 1792: A beautiful tapestry of contrasting colour
Moon ring shines bright over the VLT
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