California sued the Trump administration on Monday over the US EPA’s decision to reclassify four state clean air waivers as rules subject to congressional review, arguing the move threatens the ...

Stretching protein samples in all directions pulls molecules farther apart, allowing them to be visualized using only light ...

When viruses travel through the air in tiny droplets, they can quickly start to dry out. Yet many viruses remain infectious after rehydration—something that is still not fully understood. Now, an ...