Space
A sea of polygons on Mars, and the weather that made them
The shapes only form when ground ice freezes and thaws in cycles. Mars, at some point, had seasons that mattered.
Topic
Space
Missions, instruments and what they are finding.
Astronomy
The first moon outside our solar system may already be found
A Jupiter-mass object orbiting a brown dwarf fits every test for an exomoon except confirmation.
Space
The Moon's far side is quietly overturning the textbook
Samples from the hemisphere we never see do not match the hemisphere we do. The early Solar System looks messier than taught.
Skywatching
The best sky in years arrives on 12 August
A solar eclipse, the Perseid peak, Venus at dichotomy and the Milky Way at its cleanest — on the same date.
Film
A game adaptation broke the opening record. Again.
The studios stopped treating games as risky source material somewhere around the third billion-dollar weekend.