This Week in Science: Lunar Launch, New Cholesterol Guidelines, And More!

NASA's Artemis II mission launched on April 1, 2026, carrying four astronauts around the Moon.

US cardiology groups published updated cholesterol management guidelines replacing their 2018 guidance.

A compound called FLAV-27 reversed cognitive decline in mouse Alzheimer's models in preclinical tests.

Archaeologists reported possible dice-like artifacts older than 12,000 years from Native American sites.

A large study linked small daily increases in sleep, activity, and vegetables to a 10% lower risk of major cardiovascular events over eight years.