Scientists have spotted the first clear sign of water from an interstellar comet, 3I/ATLAS, offering new clues to the ...

3I/ATLAS is the third confirmed interstellar object to whoosh through our solar system, after 1I/ʻOumuamua (discovered in ...

So far, we have identified three. The first one was 1I/’Oumuamua, discovered in 2017, then Comet 2I/Borisov, in 2019. This ...

A yet-to-be-peer-reviewed paper also reports that the third interstellar interloper has been seen releasing hydrogen cyanide, ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say. A comet named 3I/ATLAS likely weighs more than 33 ...

Normal gases, like the air you breathe on Earth, are made up of atoms bouncing around. Atoms consist of a positively charged bundle of particles called the nucleus and negatively charged particles ...

The bottom half of the world, known as the Southern Hemisphere, is about to be treated to a partial solar eclipse that won't ...

Portal Space Systems says it has successfully tested its solar thermal propulsion system at operational temperatures inside a vacuum chamber.