Space.com: Epsilon is the Japan Aerospace Exploration Agency’s (JAXA’s) newest rocket. Its first launch was originally scheduled for 22 August, but was delayed for a ground systems review. On 27 August, with 19 seconds left on the countdown, an attitude abnormality triggered the automatic abort process. JAXA is investigating the details of the glitch. Epsilon is a three-stage, solid-fuel rocket capable of lifting 1200 kg to low Earth orbit. Many of its launch and onboard systems are automated and optimized so that they can be monitored and controlled from laptops. The cargo for its first launch is the Spectroscopic Planet Observatory for Recognition of Interaction of Atmosphere (SPRINT-A) satellite. JAXA says that SPRINT-A will be the first space-based telescope in Earth orbit used specifically to observe planets in the solar system.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
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