Recent observations suggest that dark energy is changing over time. Theorists wonder if dark matter is, too.

• Quanta Magazine

SpaceX's secret disk-shaped Starfall capsule is targeting a market no reentry vehicle has cracked.

• Gene
• Teslarati

On Racetrack Playa, stones heavy enough to need two hands leave grooves in the dried mud as if they walk. A weather station, fifteen GPS-fitted rocks and a set of time-lapse cameras finally recorded the cause, and it was almost nothing: a few millimeters of w…

• Space Daily

ESA astronaut Sophie Adenot has tested a European spacesuit prototype aboard the ISS, while a second suit completed water survival trials in Marseille.

• Andrew Parsonson
• Europeanspaceflight.com