PHOENIX — A billionaire-backed philanthropic organization is funding the development of a series of new observatories, including a space telescope larger than Hubble that its backers say can be built ...

NASA said Thursday that it will bring four astronauts aboard the International Space Station back to Earth more than a month earlier than planned because of a medical issue — the first such evacuation ...

Portal, as you probably know, is perfect. One facet of that perfection is the meta-satire that writers Erik Wolpaw and Chet Faliszek wrapped around designer Kim Swift’s lab-grade physics puzzles. They ...