Could a lonely planet wander aimlessly through the restless galaxy change the subtle dance of gravity within our solar system ...

A NASA mission to study the heliosphere—the sun's magnetic bubble that shields our solar system—and develop a better ...

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 interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously ...

A star is heading toward the outskirts of our solar system, and it’s getting here sooner than expected.Gliese 710, a rogue dwarf star, is now estimated to brush past our solar neighborhood in just ...

The Sun’s poles may hold answers to long-standing mysteries about magnetic cycles, solar wind, and space weather. The polar ...

Back in 2019, a consortium of scientists predicted August 2025 as the peak of the solar activity cycle. But where are we now?

The sun has become more and more active over the last 16 years, in a turn that surprised scientists and could affect space ...

New observations suggest that the dwarf planet Makemake is surrounded by faintly glowing methane gas. Scientists are unsure ...

Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than ...