Lake Powell has fallen to its lowest level on record after an exceptionally dry and warm winter left the Colorado River Basin with little mountain snow to melt. Lake Mead also reached record lows, raising concerns for a river system that supplies water and power to more than 40 million people. Federal officials have taken emergency steps to stabilize Lake Powell, including sending in water from a…

Tasmania’s Duck Bay wetland is showing signs of recovery after years of work to remove invasive rice grass. Circular Head Landcare has reduced the weed from about 50 hectares to five, allowing native saltmarsh plants to return. University of Tasmania scientists found fish species increased from five to 11, with yellow-eye mullet and other species returning to restored areas.

The first planned orbital Starship mission is scheduled for launch from Starbase in Texas as soon as Sept. 28, pending final approval from the Federal Aviation Administration.