A comet born around a distant star is now tearing through our solar system at roughly 150,000 miles per hour, and astronomers ...

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar System and is unlike anything ever before seen in our cosmic backyard, ...

In the latest research, telescope observations of 3I/ATLAS examine its chemical structure and suggest that it took shape in a ...

Comet 3I/ATLAS arrived from beyond the Solar System carrying a chemical story unlike anything astronomers had measured before ...

Based on the composition of gases spewed by the icy space rock, researchers estimate that our guest might be up to 12 billion years old—about three times the age of the solar system ...

Cropped image of NASA’s James Webb Space Telescope observation of comet 3I/ATLAS with its Near-Infrared Spectrograph ...

For the first time, scientists have taken near-daily measurements of the Sun's global coronal magnetic field, a region of the Sun that has only been observed irregularly in the past. The resulting ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...

Sunrise III captured over 200TB of solar data during a stratospheric flight, giving scientists unprecedented insights into solar flares, oscillations and solar tornadoes.