Articles by

Sid Perkins

Scientists identify a long-sought by-product of some drinking water treatments

Roughly one-third of Americans could be exposed to a long-sought, newly identified breakdown product of some chlorine-based...

Barnard’s star has at least one planet orbiting it after all

A red dwarf star known as Barnard’s star, which lies a mere six light-years from our solar...

Starlink satellites’ leaky radio waves obscure the cosmos

While SpaceX’s Starlink satellites are enabling internet access and cell phone communications around the globe, they’re...

Zapping sand to create rock could help curb coastal erosion

Shorelines worldwide have always been vulnerable to coastal erosion, a phenomenon rendered more ominous by rising...

Scientists are getting serious about UFOs. Here’s why

For millennia, humans have seen inexplicable things in the sky. Some have been beautiful, some have been...

In a seafloor surprise, metal-rich chunks may generate deep-sea oxygen

In an unexpected twist, metal-rich nodules found on the seafloor are generating oxygen, new research suggests. This...

An ancient earthquake changed the course of the Ganges River

India’s Ganges River shifted abruptly due to a distant yet massive earthquake around 2,500 years ago, new...

Rock from the impact that formed the moon may linger in Earth’s mantle

About 4.5 billion years ago, a Mars-sized object smashed into the young Earth, spraying debris that coalesced...