In announcing a $35 billion program to bring inexpensive solar power to some 300 million Africans, officials left out two words: climate change.

This story incorporates reporting from Yahoo, Space on MSN.com and MSN.NASA astronaut Suni Williams set a new record with a ...

The company planning to build the world’s fastest airliner at Piedmont Triad International Airport completed the first supersonic flight of its demonstrator aircraft on Tuesday at the Mojave Air & ...

The gigantic coronal hole is blasting high-speed solar wind toward Earth, potentially igniting vibrant auroras and minor ...

NASA’s Juno mission to Jupiter’s moon Io has provided incredible data. A recent flyby revealed the most powerful volcanic event ever recorded on Io, the most volcanic world in our solar system.

A very long solar filament that had been snaking around the Sun erupted with a flourish. The bright light of a solar flare on ...