New simulations suggest that up to four of the solar system's rocky planets, including Earth and a long-lost world, once ...

The scientists have issued the chilling warning regarding the mysterious interstellar object hurtling through our solar ...

International astronomers have for the first time witnessed the birth of a planetary system beyond Earth's sun that could one ...

Analysis of an ancient meteorite suggests that rocky planets both near and distant from the sun may have formed at the same ...

Is there a massive undiscovered planet on the outer reaches of the Solar System? The idea has been around since before the ...

Aliens are visiting our solar system. Not little green men, sadly, but natural alien objects—cosmic bodies such as comets and ...

An alien comet is now passing through our solar system. Here's what we know Scott SutherlandMeteorologist, Science Writer Published on Jul. 12, 2025, 4:00 AM Updated on Jul. 21, 2025, 6:00 AM ...

Currently 420 million miles (670 million kilometres) away from Earth, 3I/ATLAS's trajectory and incredible speed meant it must be passing through our solar system after being ejected by its own star.

Earth is surrounded by rocky bodies and bits of debris from when the solar system formed roughly 4.5 billion years ago. On Saturday, one of those leftover rocks will whiz past Earth. The asteroid ...

The find is similar to another solar system called Trappist-1, which contains seven Earth-sized rocky planets locked in various orbital resonances. What makes the new system different is that the ...

Take a look at 10 surprising facts that reveal the incredible nature of our cosmic neighbourhood, incorporating key elements ...