Tule fog is choking California’s Central Valley. Here's how it forms and why it's forming less often despite heavy fog this ...

Dense tule fog has blanketed California's Central Valley. We explain how this strange weather phenomenon occurs.

CU Boulder held a memorial march Saturday to mark the 40th year since the Space Shuttle Challenger tragedy and the 23rd year since the Space Shuttle Columbia disaster, honoring astronauts who died ...

On Feb. 19, 2022, against Oklahoma, the Iowa State Cyclones honored the first Black varsity player in school history in John ...

The explosion of the 1986 NASA Challenger mission took the life of New Hampshire teacher Christa McAuliffe, along with all other crew members. In the 40 years since, McAuliffe has become a household ...

The Swedish Royal Academy of Sciences has awarded the Crafoord Prize to climate scientist Veerabhadran Ramanathan. He discovered a powerful force of global warming.

As the nation commemorates the anniversary of the Challenger space shuttle disaster, here in the islands some members of the ...

Read about the tragic Challenger space shuttle disaster and the story of Christa McAuliffe, a teacher who dreamed of going to ...

Former Goffstown High School science teacher Phil Browne recalls how he tried to preserve McAuliffe’s legacy with his ...

NASA’s 1986 Challenger mission was intended to inspire students to consider a future in space. The crew’s family is ...

It's been 40 years since the Challenger space shuttle, carrying seven people, took off from Florida's Kennedy Space Center, ...

A reflection on the Jan. 12, 1986, launch of Space Shuttle Columbia’s STS-61-C mission, published on the Challenger ...