Editor’s Note: Captain Mark Kelly (US Navy, retired) is a combat veteran and former NASA astronaut. The opinions expressed in this commentary are his. To see our planet as this majestic blue ...

Democratic Sen. Mark Kelly on Sunday leaned into his experience as an astronaut to call for climate crisis action amid a blistering heatwave across the United States, including his home state of ...

Republican incumbent Sen. Martha McSally hasn’t been talking much about climate change and the environment in her 2020 campaign fight against Democratic challenger, Mark Kelly.

Republican incumbent Sen. Martha McSally hasn’t been talking much about climate change and the environment in her 2020 campaign fight against Democratic challenger Mark Kelly.

Images: AP/NurPhoto via ZUMA Press Composite: Mark Kelly One of the most common tropes in our increasingly alarmist climate debate is that global warming has set the world on fire. But it hasn’t.

Along with his twin brother Scott, Mark Kelly joined NASA's astronaut program in 1996. He flew four missions on the Space Shuttle, two as commander, ... a former climate-change denier.

Editor’s Note: Captain Mark Kelly (US Navy, retired) is a combat veteran and former NASA astronaut. The opinions expressed in this commentary are his. To see our planet as this majestic blue ...

Democratic Sen. Mark Kelly on Sunday leaned into his experience as an astronaut to call for climate crisis action amid a blistering heatwave across the United States, including his home state of ...

Editor’s Note: Captain Mark Kelly (US Navy, retired) is a combat veteran and former NASA astronaut. The opinions expressed in this commentary are his. To see our planet as this majestic blue ...