Only two spacecraft have ever truly escaped the solar system, slipping beyond the Sun’s protective bubble into interstellar space. Their measurements are now reshaping how I understand the heliosphere ...

Solar power has become an important part of our civilization, especially in recent years, and it is presently crucial to our existence. Solar panel farms spread far and wide across the planet, on ...

United States-based space solar startup Overview Energy has announced its emergence from stealth mode to work on the next phase of commercialization. Based in Ashburn, Virginia, the company was ...

Portal’s heat exchanger thruster, known as Flare, fires up during a test in a vacuum chamber. (Portal Space Systems Photo) Bothell, Wash.-based Portal Space Systems says it has successfully tested its ...

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from around here. Believed to be a comet, the object is only the third celestial ...

The Interstellar Mapping and Acceleration Probe (IMAP) is being launched later this month to study the outer reaches of the heliosphere which defines where our solar system ends and interstellar space ...

HELSINKI — China has published coordinated papers outlining dual missions to the solar system’s edge, suggesting the long-studied project is nearing formal approval. A lead paper on the design and key ...

Solar wind sounds poetic, but it's a very real and powerful phenomenon, connecting the Sun to every part of our solar system.