An E.P.A. Plan to Kill a Major Climate Rule Is Worrying Business Leaders

This company's plan to launch 4,000 massive space mirrors has scientists alarmed: 'From an astronomical perspective, that's pretty catastrophic'

E.P.A. Canceled $20 Million Flood Protection Grant to Alaska, Parts of Which Just Flooded

The Plan to Send Tiny Probes to the Stars | A cadre of researchers are now working to make interstellar travel a reality, at least to our nearest neighbors. They are coalescing around an approach that could lead to closeup images of a star and an exoplanet just 25 years after mission launch.