The bold question-askers at What If examine what could happen if we moved the entire solar system. Hurricane Melissa close to breaking pressure record ahead of Jamaica landfall GOP-led Oversight ...

Humanity has achieved incredible milestones in space exploration, from landing on the Moon to sending probes beyond our solar system—but true interstellar travel remains far beyond our reach. This ...

Voyager 1, launched in 1977, has traveled farther than any spacecraft in human history. After more than four decades of silent endurance through space, it now sails beyond the orbit of the outer ...

Tesla announced that it is reviving solar leasing after years of allowing its solar business to slowly decline over the last few years. The company had even stopped reporting solar installations.

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

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 massive comet traveling through the solar system is much larger than previously thought and could be a remnant of alien technology, a scientist claims in a new report. 3I/ATLAS was first identified ...

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system. The object is a comet hailing from the direction of the constellation ...

The number of confirmed planets outside of our solar system—known as exoplanets—has risen to 6,000, NASA has said. There is huge variety across these distant worlds, the space agency says, with ...

A NASA mission to study the heliosphere—the sun's magnetic bubble that shields our solar system—and develop a better understanding of space weather was launched from the agency's Kennedy Space Center ...

The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by scientists from around the world, ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an orbit stretching 25,000 years and a size that may qualify it as a dwarf ...