Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...

Harvard astornomer Avi Loeb suggests interstellar object 3I/ATLAS could've sent off the Wow! Signal back in 1977.

On August 24, 2006, our solar system lost a planet. It wasn't by cataclysmic destruction, but rather by the vote of the International Astronomical Union, which declared that Pluto, considered the ...

Most of that brightness increase has been in the green part of the visible light spectrum, suggesting a “surge of gas ...

Astronomers have been racing to get a better look at 3I/ATLAS, a mysterious object screaming into our solar system from far beyond. Now, as the BBC reports, new observations by the Gemini South ...

The Hubble Space Telescope captured footage of Jupiter, Saturn, Uranus and Neptune in 2021. See them spin in this time-lapse. Credit: SCIENCE: NASA, ESA, Amy Simon (NASA-GSFC), Michael H. Wong (UC ...

Gleise 710, an orange dwarf star about 63 light years away, is on course to pass through the outer reaches of our solar system in about 1.2 million years, disturbing the distant Oort Cloud of icy ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. So when PG&E approached Gillogly about installing a solar- and battery-powered ...

The mysterious interstellar object traveling through our solar system has been spotted acting like no other comet ever seen before, revealing its alien origins. Scientists from Michigan State ...

Two recent studies used seismic data from NASA’s retired InSight mission to shed light on what lies beneath Mars’ surface and what it means for the planet’s history The spacecraft will map the ...

A new analysis estimates that the asteroid belt is steadily losing mass each year, and may not be as permanent a feature of the solar system as we thought. The beads appear above a swirling hexagonal ...