Raspberry Pi 4s Launch into Space as Astro Pi Program Upgrades

Astronomers spot the same supernova 3x—and predict a 4th sighting in 16 years. An enormous amount of gravity from a cluster of distant galaxies causes space to curve so much that this "gravitational lensing" effect has astronomers to observe the same exploding star in three different places.

Elon Musk’s SpaceX Seeks Next Space Milestone With Launch This Week

A supernova’s delayed reappearance could pin down how fast the universe expands