When the interstellar object now known as 3I/ATLAS was discovered this summer by NASA’s ATLAS telescope in Chile, astronomers expected another ordinary cosmic traveler, much like ʻOumuamua or Borisov.

While most scientists believe it’s a natural comet, one Harvard astronomer has suggested its unusual features could hint at ...

The comet is the third interstellar object from deep space ever recorded to pass through Earth’s solar system.

Interstellar comet 3I/ATLAS is passing safely through our solar system. Learn about its discovery, its distant path, and why ...

To receive the same amount of starlight as Mars receives from our sun, a planet orbiting an M-type red dwarf would have to be positioned much closer to its star than Mercury is to the sun. Disclaimer: ...

The early growth of the gas giant carved rings that formed primitive meteorites and shaped the architecture of the inner ...

The orbiter, which is part of the nation's ongoing Tianwen 1 mission for Mars exploration, took the images of the comet, coded 3I/ATLAS, on Oct 3 as it whizzed past the Red Planet. It is the third ...

An interstellar object called 3I/ATLAS has just passed our sun. Despite online rumours that it’s an alien spaceship, experts say it’s definitely a comet.

CLEVELAND — With so much focus on the total solar eclipse right now, I thought some stellar solar system facts would shake up your universe. Let me take you back to grade school and the solar system ...