Earth setting behind the cratered far side of the Moon, photographed by the Artemis II crew from the Orion spacecraft.

This week in papers

Five new results in one line each, plus one landmark from the archive. One short email a week.

Start here: the 27 papers that built modern astronomy, free and no sign-up

Five new papers
The week’s most important results in astronomy, one plain-English line each, with a link to the paper.
One landmark
A classic from the archive and why it still matters, from Hubble to LIGO.
Nothing else
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Photo: Earth setting behind the far side of the Moon, taken by the Artemis II crew on April 6, 2026. NASA.