NASA and Vast have signed an order for the sixth private astronaut mission to the International Space Station, targeted to launch no earlier than summer 2027
Supermassive black hole binaries form naturally when galaxies merge, but scientists have only confidently observed a very few of these systems that are widely separated. Black hole binaries that closely orbit each other have not yet been measured. In a paper …
The world is closer than thought to a "point of no return" after which runaway global heating cannot be stopped, scientists have said. From a report: Continued global heating could trigger climate tipping points, leading to a cascade of further tipping points…
