Highlights from the last week of May, 2026: A key climate tipping point is disrupting the Arctic Ocean food chain (more of a lowlight, I guess). Scuba-diving tourism may not be the benefit to coral reef systems that we once thought,

For the first time in 2026, SpaceX's massive Starship rocket launched on a critical mission that took it thundering halfway around the world.

The Starship program’s first flight in months will mark the much-anticipated debut of an upgraded version of the vehicle. But success is far from guaranteed.

Last week, SpaceX successfully tested the launch capabilities of its Starship megarocket. It had been seven months since the last test launch, a delay caused by a variety of technical challenges, including the destruction of the rocket's massive booster during a November test.