Portal Space Systems says it has successfully tested its solar thermal propulsion system at operational temperatures inside a vacuum chamber.
A supermoon takes over the sky, the Draconid meteor shower peeks through, and the Orionid meteor shower shines bright.
Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...
Astronomers have confirmed 6,000 exoplanets beyond our solar system, with thousands more awaiting verification, marking a ...
The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously ...
The rate of finding these distant worlds has recently increased, with astronomers scrambling to accommodate the data ...
The Down Under is about to witness a partial solar eclipse as the moon comes between the sun and Earth to obscure a portion of our solar system's blazing star ... The looming cosmic show also follows ...
The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say.